Key Takeaways
- Function Health acquired Ezra in May 2025 and cut the cost of a full-body MRI from $1,500 to $499, bundling it with a $365/year membership that includes 160+ lab tests, clinician review, and a personalized action plan powered by its Medical Intelligence AI model.
- Neko Health raised $260 million at a $1.8 billion valuation in January 2025 and charges £299 (approximately $400) for a 15-minute full-body scan using thermal cameras, 3D cameras, ECG, and laser sensors to detect skin cancer, heart disease, and Type 2 diabetes markers without MRI.
- Prenuvo secured FDA clearance in 2025 for its AI-powered Body Composition report, which quantifies visceral fat, liver fat, muscle volume, and organ size from whole-body MRI scans. Memberships range from $1,199/year for a focused scan to $3,999 for its most comprehensive executive package.
- Levels Health charges a $199 annual software fee plus the cost of a continuous glucose monitor to run AI-powered metabolic analysis on 24/7 glucose data, identifying how specific foods and lifestyle habits affect individual metabolic flexibility. It also offers a $99/month Stelo biosensor option for over-the-counter access.
- SkinVision’s clinically validated deep-learning model delivers a three-tier mole risk assessment (low risk, low risk with tracking, or high risk) within 30 seconds for $7 per scan. The app is CE Class IIa marked in Europe and has published peer-reviewed validation data in npj Digital Medicine.
- Miiskin pairs full-body photography with close-up mole comparison and AI-powered change detection to track skin lesions over time, making it one of the most practical longitudinal skin monitoring tools available at $24.99/year for premium features.
- Aidoc’s AI radiology platform is deployed in hospital imaging workflows and flags critical incidental findings such as coronary artery calcifications, intracranial hemorrhages, and pulmonary embolisms with greater than 90% sensitivity, making it relevant to anyone undergoing routine CT or MRI imaging at a connected hospital.
- ShapeScale delivers AI-powered 3D body composition scanning, tracking changes in muscle mass, fat distribution, and body shape with visual overlays over time. It is available to gyms and clinics at $199/month lease or $9,780 to purchase.
Preventive health screening used to mean an annual checkup, a blood pressure reading, and a cholesterol panel. In 2025, it looks substantially different. AI tools now map the body’s internal structure, flag arterial calcification on routine CT scans before symptoms appear, track glucose responses to individual meals in real time, and detect changes in skin lesions that the human eye cannot resolve. These tools do not replace physicians, but they change when and how problems are found, shifting the window from symptomatic to asymptomatic detection.
The category spans a wide range of access points. Some tools require an in-person visit to a dedicated clinic, where a full-body scan takes 15 to 60 minutes and produces a report reviewed by a clinician. Others run on your phone camera or pair with a wearable sensor worn on your arm. A third group operates inside hospital radiology workflows, reviewing every CT scan for findings the ordering physician may not have been looking for. Understanding which type of tool fits your situation is the most practical starting point for choosing among them.
This list covers eight AI tools for preventive health screening and body diagnostics, drawn from the clinic, the consumer app market, the pharmacy-accessible wearable category, and the hospital imaging infrastructure. Each entry includes what the tool does, who it is for, verified pricing, and an honest take on limitations.
1. Function Health: Best Overall for Comprehensive Health Intelligence
Function Health started as a direct-to-consumer lab testing platform and became the most comprehensive AI preventive health service in the United States after acquiring Ezra in May 2025. A Function membership at $365/year includes more than 160 lab tests, clinician review of results, and a personalized action plan. The Ezra acquisition added FDA-cleared AI-powered full-body MRI scanning at $499 per scan, down from $1,500 before the integration. The basic MRI scans the head, neck, abdomen, and pelvis in under 30 minutes and can identify more than 500 conditions, including cancers, stroke markers, fatty liver disease, gallstones, uterine fibroids, kidney stones, and abdominal aortic aneurysm.
The platform’s Medical Intelligence AI model synthesizes lab results, imaging findings, wearable data, and medical records to generate personalized health insights that go beyond what any single test type can provide. Function is the most logical entry point for someone who wants a single platform covering blood biomarkers, imaging, and longitudinal AI analysis. The lab panel alone covers six times more biomarkers than most primary care annual checkups. The scan pricing is currently the lowest available for a full-body AI-reviewed MRI in the United States.
Pros:
- 160+ lab tests plus full-body AI MRI under one annual membership at $365/year plus $499 for the scan
- Medical Intelligence AI synthesizes lab, imaging, wearable, and medical record data into one actionable report
- Lowest-cost full-body MRI in the US market following the Ezra acquisition, at $499 versus the $1,500-$2,500 range charged by competitors
- Clinician review included with results, delivering not just a raw data dump
Cons:
- MRI scan locations are limited to Ezra’s existing clinic network, which is not nationwide
- Membership fee is annual and non-refundable if scan slots near you are unavailable
- Lab results volume can be overwhelming without physician guidance beyond the included review
Pricing:
- Membership: $365/year, includes 160+ lab tests and clinician review
- Full-body MRI (Ezra scan): $499 per scan for Function members
Visit: Function Health
2. Neko Health: Best for Fast Full-Body Clinic Scanning Without MRI
Neko Health was co-founded by Spotify’s Daniel Ek and raised $260 million at a $1.8 billion valuation in January 2025. The company operates a network of clinics across Sweden and the United Kingdom, with a first US location planned for New York City. A Neko scan takes 15 minutes and uses a combination of thermal cameras, 3D cameras, ECG sensors, lasers, and finger sensors to screen for skin cancer, heart disease, Type 2 diabetes markers, and other conditions without requiring MRI. The £299 per scan price (approximately $400) is significantly lower than full MRI alternatives, and the 15-minute scan time makes annual re-visits practical.
Neko’s AI maps the body’s surface and analyzes sensor data to create a health profile that includes cardiovascular metrics, skin anomaly detection, and early metabolic signals. The scan is followed by a clinician review appointment at a Neko location. For users who want a regular preventive scan that does not require lying in an MRI machine for an hour, Neko is the most time-efficient option with a price that makes annual re-scanning realistic. Its limitation is geographic: outside of Sweden, the UK, and eventually NYC, access is not possible.
Pros:
- 15-minute scan covers cardiovascular, skin cancer, and metabolic markers without MRI
- £299 (~$400) per scan is significantly cheaper than full MRI alternatives
- Backed by $260M in Series B funding at $1.8B valuation, indicating institutional confidence in the model
- Clinician follow-up included as part of the scan protocol
Cons:
- Available only in Sweden, UK, and a planned NYC location as of 2025
- Does not include internal organ MRI imaging, missing conditions that require deep-tissue detection
- No subscription or membership model announced; each scan is a one-time purchase
Pricing:
- Full-body scan: £299 (approximately $400) per session
Visit: Neko Health
3. Prenuvo: Best for Whole-Body MRI with AI Body Composition Analysis
Prenuvo is the most established consumer whole-body MRI company in the United States, with clinic locations in multiple major cities and a tiered membership model launched in 2025. Its core product is a whole-body MRI scan that screens for more than 500 conditions across every major organ system. In February 2025, Prenuvo raised $120 million and received FDA clearance for its AI-powered Body Composition report, which quantifies visceral fat, subcutaneous fat, liver fat fraction, muscle volume, and vital abdominal organ sizes from the same MRI data used for disease screening, without requiring a separate DEXA scan.
Prenuvo’s three membership tiers give users a structured entry point: a Core membership at $1,199/year includes a focused scan and lab panel; a Comprehensive membership at $2,499 adds a whole-body scan and detailed lab work; an Executive membership at $3,999 combines a whole-body scan, brain health assessment, full body composition report, and an expanded lab panel. For users who want the deepest and most validated whole-body imaging currently available to consumers, Prenuvo is the benchmark. The cost is substantially higher than Function Health’s post-Ezra pricing, but Prenuvo’s MRI coverage is broader and its clinic network more established in the US market.
Pros:
- FDA-cleared AI body composition report quantifies visceral fat, liver fat, and muscle volumes from a single MRI session
- Whole-body MRI covers 500+ conditions across all major organ systems
- US clinic network more established than competitors, with locations in major cities
- Annual membership model makes repeat screening economically predictable
Cons:
- Most expensive option in the category at $1,199 to $3,999/year depending on tier
- Whole-body MRI takes 50-60 minutes, requiring significantly more time than Neko’s sensor-based approach
- Insurance does not cover elective preventive MRI scans; cost is entirely out-of-pocket
Pricing:
- Core membership: $1,199/year (focused scan + lab panel)
- Comprehensive membership: $2,499/year (whole-body scan + detailed labs)
- Executive membership: $3,999/year (whole-body scan + brain health + body composition + expanded labs)
Visit: Prenuvo
4. Levels Health: Best for AI-Powered Metabolic Monitoring
Levels Health applies AI to continuous glucose monitor (CGM) data to give users a detailed picture of their metabolic health in real time. The platform centers on a biosensor worn on the arm that transmits glucose readings every few minutes throughout the day. Levels’ AI layer scores meals, activity patterns, and sleep based on their glucose impact, identifies individual metabolic responses that differ significantly from population averages, and generates weekly metabolic reports. The 2025 AI models have shifted focus toward metabolic flexibility, measuring how well a person’s metabolism switches between glucose and fat as fuel sources, a marker associated with insulin sensitivity and long-term metabolic risk.
Access requires a $199 annual software membership fee, which covers the app, scoring algorithms, meal logging, and metabolic reports. CGM sensors are purchased separately; prescription-grade sensors run $150-$200 per month, but Levels introduced an over-the-counter Stelo biosensor option in 2025 at $99 per month for users who do not want to navigate a prescription pathway. Dietitian support is available as an add-on. Levels is best suited for users with family histories of Type 2 diabetes, those who want to optimize athletic performance, or anyone whose primary care labs have shown glucose or insulin irregularities that stop short of a clinical diagnosis.
Pros:
- 24/7 real-time glucose monitoring with AI-generated meal and lifestyle scoring
- Stelo OTC biosensor at $99/month removes the prescription requirement for first-time users
- Weekly metabolic flexibility reports give a longitudinal view of insulin sensitivity trends
- App integrates with Apple Health and other wearables for a composite metabolic picture
Cons:
- Annual software fee of $199 plus sensor cost makes the total monthly spend $100-$200 or more
- CGM data reflects glucose only; does not cover lipid, hormonal, or inflammatory markers
- Sensor placement on the upper arm is visible and may be uncomfortable for some users in warm climates
Pricing:
- Levels annual membership: $199/year (software only)
- Stelo OTC biosensor: $99/month (sensor included)
- Prescription CGM: $150-$200/month (sensor cost varies by insurer and pharmacy)
Visit: Levels Health
5. SkinVision: Best for AI Skin Cancer Screening
SkinVision is one of the most validated consumer AI tools in the preventive health category, with over a decade of clinical study behind its deep-learning skin lesion analysis model. Founded in Amsterdam in 2011, the app is CE Class IIa marked in Europe, which places it in the same regulatory tier as surgical instruments and long-term contact lenses, a substantially higher bar than most wellness apps. The model photographs and analyzes a mole or skin lesion and returns a risk classification within 30 seconds: low risk, low risk with features to track, or high risk. High-risk results prompt a recommendation to see a dermatologist.
Peer-reviewed validation data published in npj Digital Medicine has shown strong performance on melanoma detection accuracy across clinically diverse datasets. The tool does not replace a dermatologist examination, but it provides a cost-effective first-line triage for users who have moles or lesions they are monitoring but have not yet prioritized a dermatologist appointment. At $7 per scan, the cost of checking a concerning lesion before deciding whether to book a specialist appointment is lower than the typical copay for a dermatology visit alone.
Pros:
- CE Class IIa medical device certification in Europe, the highest regulatory tier for a consumer skin app
- 30-second risk classification with three-tier output (low, track, high) guides follow-up decisions
- Published validation in npj Digital Medicine demonstrates clinical-grade accuracy on melanoma detection
- $7 per scan is lower than most dermatology copays for an initial assessment visit
Cons:
- Photo quality and lighting conditions significantly affect accuracy; poor images can produce unreliable results
- Not a replacement for a dermatologist examination for high-risk or suspicious lesions
- CE Class IIa clearance is a European standard; FDA clearance status in the US differs
- Per-scan pricing adds up for users with many moles requiring regular monitoring
Pricing:
- Single scan: $7 per assessment
- Subscription: Unlimited checks for 3 or 12 months available (pricing varies by region)
Visit: SkinVision
6. Miiskin: Best for Longitudinal Mole Tracking and Skin Monitoring
Miiskin approaches skin health diagnostics from a longitudinal angle rather than a single-scan assessment. The app from Danish health-tech company Miiskin allows users to photograph their full body and individual moles, then uses AI to map lesion locations on a body diagram and highlight changes between comparison photos taken at different time intervals. The core insight driving the tool is that the most clinically significant signal in skin cancer screening is change over time, and that most people lack a systematic way to track whether a mole has grown, darkened, or changed shape between annual dermatology visits.
The free version allows basic photo storage and comparison. The premium plan at $24.99/year adds automated body mapping, change detection alerts, cloud sync, and scheduled reminders for monthly self-examinations. For users who already have a dermatologist relationship but want better data to bring to those appointments, Miiskin’s longitudinal documentation is a practical complement to periodic professional examinations. It works best as part of a system that includes at least annual dermatologist review, particularly for fair-skinned individuals or those with a family history of skin cancer.
Pros:
- Longitudinal tracking highlights changes between photos, which is the most clinically relevant signal in melanoma detection
- Body map feature creates a systematic record of mole locations, avoiding missed spots during self-examination
- $24.99/year is among the most affordable AI-powered health monitoring tools in any category
- Free version available with basic photo comparison for users who want to test before committing
Cons:
- Change detection alerts require consistent photo quality between sessions; inconsistent lighting degrades comparison accuracy
- Does not provide a risk classification like SkinVision; it flags change, not severity
- Self-photography of the back, scalp, and other hard-to-reach areas requires a second person for consistent coverage
Pricing:
- Free plan: Basic photo storage and manual comparison
- Premium plan: $24.99/year, includes automated change detection, body map, reminders, and cloud sync
Visit: Miiskin
7. Aidoc: Best AI for Incidental Preventive Findings in Medical Imaging
Aidoc operates differently from every other tool on this list: it is not a direct-to-consumer product but a clinical AI platform deployed inside hospital and imaging center radiology workflows. Its relevance to preventive health comes from what it does with scans ordered for other reasons. When a patient gets a CT scan for a suspected kidney stone or a routine chest X-ray, Aidoc’s AI simultaneously analyzes the full image for incidental findings, identifying coronary artery calcifications, early-stage pulmonary nodules, arterial aneurysms, and other markers that the ordering physician was not specifically looking for and that a human radiologist reviewing hundreds of scans per shift might not prioritize.
Aidoc received FDA Breakthrough Device Designation in 2025 for its CARE Triage multi-condition detection system and its First Read AI, which generates preliminary radiology report text from chest radiographs. Its published clinical data shows greater than 90% sensitivity for intracranial hemorrhage detection. For patients, the most practical implication is that any routine imaging study done at a hospital running Aidoc is being reviewed by an AI layer that is specifically looking for incidental preventive findings. If your imaging center or hospital system uses Aidoc, you are receiving an additional layer of AI-powered preventive screening at no additional cost as part of the standard workflow. Aidoc licenses its platform to hospitals and imaging centers on an enterprise basis; patient cost is zero beyond the cost of the imaging study itself.
Pros:
- FDA Breakthrough Device Designation for CARE Triage and First Read AI in 2025
- Greater than 90% sensitivity on intracranial hemorrhage detection in published clinical studies
- Identifies incidental preventive findings on routine scans without additional patient cost or time
- Approved for coronary artery calcification detection, a key cardiovascular risk marker, from standard CT imaging
Cons:
- Not available directly to consumers; access depends on whether your hospital or imaging center licenses the platform
- No patient-facing interface or report; findings are surfaced to the radiologist and ordering physician, not directly to the patient
- Incidental findings can trigger follow-up imaging and anxiety without guaranteeing clinical significance
Pricing:
- Enterprise licensing: Priced for hospital and imaging center contracts; no direct patient cost beyond the imaging study
Visit: Aidoc
8. ShapeScale: Best for AI 3D Body Composition Tracking at Fitness Facilities
ShapeScale is an AI-powered 3D body scanner available at gyms, clinics, and wellness facilities that creates a full photogrammetric model of the body to track changes in muscle mass, fat distribution, and body shape over time. Unlike DEXA scans, which provide bone density and body composition data as numbers, ShapeScale produces a 3D visual model with color-coded overlays that show where the body has gained or lost mass between scans, making changes in physique immediately visible at a localized level. This visual feedback is particularly relevant for users on GLP-1 medications, who may be losing both fat and muscle mass at the same time and need granular body composition tracking to optimize training and nutrition responses.
ShapeScale is positioned for gym and clinic deployment rather than home use: a purchase costs $9,780 or the device can be leased starting at $199/month with software included. Individual scan costs at facilities vary by location. For preventive health purposes, ShapeScale’s most relevant output is visceral fat tracking and muscle loss detection, both of which are early markers for metabolic disease risk that standard scale weight does not distinguish. Facilities offering ShapeScale typically bundle scans into membership tiers or charge $10-$30 per session.
Pros:
- 3D color-coded body composition overlay shows localized muscle and fat changes that weight measurements cannot capture
- Particularly valuable for GLP-1 medication users tracking whether they are losing fat or muscle mass
- Visual longitudinal comparison is more intuitive for behavior change motivation than numeric body composition reports
- No radiation or contrast agent required, unlike DEXA or CT-based body composition analysis
Cons:
- Not a home device; access depends on whether a nearby gym or clinic operates a ShapeScale unit
- Measures body shape and composition, not internal organ health, vascular markers, or blood biomarkers
- Purchase cost of $9,780 makes it an investment that facilities must recoup through per-scan fees
Pricing:
- Device purchase: $9,780 (for facility operators, software included)
- Device lease: Starting at $199/month (for facility operators, software included)
- Per scan at facilities: Varies by location, typically $10-$30 per session
Visit: ShapeScale
How We Evaluated These Tools
Each tool was evaluated on five criteria: the clinical or regulatory validation behind its AI model, the type of health risk it can detect, the cost and accessibility for a typical user, the actionability of its outputs, and the transparency of its pricing. Tools that claimed preventive health benefits without published validation data or regulatory clearance were excluded. Pricing was drawn from the tools’ own websites and verified news coverage from 2025, except where noted.
This list spans different tiers of access deliberately. A hospital patient using Aidoc-equipped radiology has no additional cost or decision required. A Miiskin subscriber spends $24.99/year. A Prenuvo Executive member spends $3,999. The right tool depends almost entirely on which health risk is most relevant to a specific user’s age, family history, and clinical situation, not on which tool has the most impressive marketing claims.
Which Tool Should You Choose?
For a single starting point that covers the widest range of preventive markers at a reasonable cost, Function Health at $365/year plus $499 for the Ezra MRI scan is the strongest value proposition in 2025. The combination of 160+ blood biomarkers and a full-body AI MRI in one platform, supported by the Medical Intelligence AI model, addresses more disease categories than any other single membership. Prenuvo is the better choice for users who specifically want the most validated and comprehensive whole-body MRI experience in a US clinic setting and are willing to pay for it.
For skin health specifically, SkinVision and Miiskin serve different needs: SkinVision provides a clinical-grade risk classification on a specific lesion in 30 seconds, while Miiskin builds a longitudinal record of all lesions over time. Using both together is practical and costs less than a single dermatology copay per year. Levels Health is the right fit for metabolic health monitoring, particularly for users with pre-diabetes markers or those wanting to understand how their diet affects glucose in ways that standard annual labs cannot capture. If you attend a gym or wellness facility, ask whether ShapeScale is available: for anyone managing weight, muscle preservation, or GLP-1 medication effects, the 3D body composition data it provides is difficult to replicate with other consumer tools.
Frequently Asked Questions
What are the best AI tools for preventive health screening?
The strongest options in 2025 are Function Health for comprehensive lab testing plus AI-reviewed full-body MRI, Prenuvo for the most validated whole-body MRI clinic experience, Levels Health for metabolic monitoring with CGM, and SkinVision or Miiskin for AI-powered skin cancer tracking. The right choice depends on which health risks are most relevant to your age, family history, and clinical situation.
How accurate is AI in detecting cancer during a preventive scan?
Accuracy varies significantly by cancer type and the AI model involved. Aidoc’s AI has demonstrated greater than 90% sensitivity for intracranial hemorrhage detection in published studies, and whole-body MRI AI tools like Prenuvo and Ezra scan for more than 500 conditions including early-stage cancers. For skin cancer specifically, SkinVision’s deep-learning model has peer-reviewed validation in npj Digital Medicine. None of these tools provide a diagnostic confirmation; a positive finding leads to further specialist evaluation, not a diagnosis.
Is a full-body MRI worth the cost for preventive health?
The clinical community is divided on this question. Proponents note that whole-body MRI can detect asymptomatic cancers, aneurysms, and organ abnormalities years before symptoms appear. Critics point out that incidental findings lead to follow-up tests, anxiety, and occasionally unnecessary procedures. The strongest case for a full-body MRI is for individuals with family histories of internal cancers, those over 50 with no recent comprehensive imaging, or people whose primary care has flagged unresolved concerns. Function Health’s $499 scan (post-Ezra) has made the cost barrier substantially lower than the $1,500-$2,500 range that defined the category in prior years.
Can an app really detect skin cancer?
AI skin apps like SkinVision provide a risk classification, not a diagnosis. SkinVision’s CE Class IIa European clearance places it in the same regulatory tier as a diagnostic medical device, and its published accuracy data for melanoma detection is strong. The practical value is as a triage filter: low-risk classifications provide reassurance that a mole does not require urgent attention, while high-risk classifications prompt a dermatologist appointment that might otherwise have been delayed. No app replaces a dermatologist dermoscopy examination for a lesion that is changing or concerning.
What is the difference between Prenuvo and Function Health (Ezra) for body scanning?
Both use whole-body MRI reviewed by AI, but they differ in scope, price, and market position. Prenuvo’s whole-body scans take 50-60 minutes, cover more anatomical territory, and are paired with an established US clinic network. Its FDA-cleared AI body composition report is a specific clinical capability not yet available from Function/Ezra. Function Health’s Ezra scan takes 22 minutes, costs $499, and pairs with 160+ lab biomarkers under one membership. For most users, Function is the better value at lower cost; for users who specifically want the most comprehensive MRI coverage and body composition analytics, Prenuvo’s higher-tier memberships justify the premium.
How does AI metabolic monitoring with a CGM work?
A continuous glucose monitor is a small sensor worn on the upper arm that measures interstitial glucose levels every few minutes and transmits data to an app via Bluetooth. Levels Health’s AI layer scores this data against meals logged in the app, identifies which foods produce outsized or prolonged glucose spikes for that specific individual, and tracks metabolic flexibility over weeks and months. The key insight is that two people can eat the same meal and have dramatically different glucose responses. CGM-based AI monitoring makes this individual variability visible and actionable, which is relevant to diabetes prevention, energy management, and athletic performance optimization.
Is Aidoc’s AI available to the public directly?
No. Aidoc is an enterprise platform licensed to hospitals and imaging centers. If you receive medical imaging at a facility that uses Aidoc, its AI is reviewing your scan for incidental findings as part of the radiology workflow, but you interact with it through your radiologist’s report, not directly. There is no consumer subscription, app, or direct access path. The practical implication is that the preventive benefit of Aidoc AI is available at no additional cost to any patient whose imaging facility has licensed the platform.
What should I ask my doctor before starting an AI preventive health scan?
The most important questions are: which disease risks are most relevant given your family history and age, whether the findings from a full-body scan would change your clinical management given your current health status, and what the plan will be if an incidental finding is detected. For individuals with no family history of internal cancers and a normal clinical picture, the clinical benefit of a whole-body MRI at 35 is debated. For someone with a first-degree relative who had colon, kidney, or liver cancer before 60, the case for annual scanning is substantially stronger. Your physician’s input on baseline risk is the most useful context for choosing which tool makes sense for your situation.
The preventive health AI market has moved faster in the past two years than in the prior decade combined. Full-body MRI access at $499, real-time metabolic AI on a wearable sensor, and 30-second AI skin risk triage on a phone are not future projections; they are available today. The practical challenge for most users is not finding a tool but deciding which specific health question to prioritize. Start with the category that carries the most personal risk given your history, use one tool consistently for at least six months before adding another, and treat AI screening outputs as data to bring to a clinical conversation rather than conclusions to act on in isolation.
