The 8 Best Blood Test Tracker Apps in 2026, Compared

Best apps for tracking health data and biomarkers: the short answer

If you already get blood work through a doctor or a lab and want to track your health markers over time, choose a lab-agnostic app — one that accepts a PDF from any lab. Merios, Carrot Care, Soka and Biotracker are built for that. InsideTracker and Function Health also take uploaded results, but only inside a paid membership built around their own testing, and SiPhox Health ties tracking to its own kits — so those three fit best if you also want to buy the tests there. If you want blood markers and wearable data trending in the same view, Merios (Apple Watch) and SiPhox Health (300+ devices) are the two picks that combine both.

If what you care about is the charting itself — seeing a marker's trajectory across years of results rather than one report at a time — that is where lab-agnostic trackers pull ahead of testing memberships, because they can ingest the results you already have instead of starting your timeline the day you join.

The rest of this guide is the detail behind those picks: the criteria, what each app does well, where each falls short, and a feature-by-feature table.

Getting a blood test is step one. Knowing what your results mean — and tracking how they change over time — is where the real value lives. A single blood test is a snapshot; a series tracked over months and years is a health trajectory. Most people get their results as a PDF, glance at the flags, and file it away: no trending, no context, no connection to lifestyle data. Blood test tracking apps solve this by extracting your biomarker values, comparing them to reference ranges, and showing how each marker moves over time.

The 8 best blood test tracking apps at a glance

The rest of this guide breaks down what each app does well, where it falls short, and who it fits — plus a full feature-by-feature comparison table further down.

How we picked

A "best apps" list is only as good as its criteria, so here are ours, stated up front.

We started from the apps people actually reach for when they have a lab PDF and nowhere to put it — a mix of standalone trackers, full testing memberships, and the option already built into the iPhone — rather than every health app with a blood section buried in it. Each one is assessed on six things: whether it accepts results from any lab or only its own, whether extraction from a PDF or photo is automatic, how far back it will trend a marker, whether it shows optimal ranges alongside standard lab ranges, whether it syncs wearable data, and what it costs once the free tier runs out. Pricing reflects the publicly listed US price at the time of writing, and testing memberships show the test cost separately from the software cost, because the two are usually bundled together in marketing.

One disclosure, because it changes how you should read this: Merios is our own app. Its entry uses the same structure and the same limitations section as every other pick, and the comparison table applies the same six criteria to all eight. Where a competitor does something better — broader panels, bundled testing, a genuinely free tier with no account — the table says so.

Prices and feature sets move quickly in this category. This guide was last checked in August 2026.

What to look for in a blood test tracking app

Before comparing specific apps, these are the features that matter most:

PDF upload and auto-extraction — manually typing in 30+ biomarker values is tedious and error-prone. The best apps accept a PDF or photo of your lab report and extract values automatically using OCR or AI.

Lab-agnostic — some apps only work with their own testing service. If you already get blood work through your doctor, Quest, Labcorp, or any other lab, you want an app that accepts results from any source.

Trend tracking — seeing your current results is useful. Seeing how they have changed over the last 2 years is transformative. Charts, timelines, and historical comparisons are essential.

Reference ranges and optimal ranges — most apps show standard lab reference ranges. The best ones also show optimal ranges used by longevity-focused physicians, which are often tighter than standard ranges. This matters most if you are tracking the biomarkers that actually predict longevity, where "in range" and "optimal" can be far apart.

Wearable integration — blood biomarkers in isolation miss half the picture. Combining lab data with Apple Watch, Oura, or Garmin data (sleep, HRV, resting heart rate, activity) creates a much richer health view.

Privacy and data control — your blood test data is among the most sensitive personal health information. Look for apps that store data locally or use encrypted cloud storage with clear privacy policies.

The 8 best blood test tracking apps

1. Merios

Best for: tracking blood tests alongside Apple Watch data with optimal longevity ranges

Merios is built for people who want to understand their blood work in the context of their daily health data. Upload any lab PDF and Merios extracts 130+ biomarkers automatically, compares each to both standard reference ranges and longevity-optimized ranges, and tracks trends over time. What sets Merios apart is the integration with Apple Watch — you see your blood biomarkers alongside sleep, HRV, resting heart rate, and activity data in one dashboard.

Key features:

• PDF upload from any lab with automatic extraction of 130+ biomarkers
• Standard and optimal reference ranges for every marker
• Apple Watch integration (sleep, HRV, resting heart rate, VO2 max)
• Trend tracking across unlimited tests
• Clean, visual dashboard designed for non-medical users

Availability: live on the US App Store, iPhone, iOS 15.1 or later

Pricing: free to download. The daily score, the journal and entering markers by hand are free for good; scanning lab reports, the in-depth blood view, biological age and Insights are part of Merios Plus, $44/year with a 7-day free trial on the annual plan (full pricing)

Biological age: PhenoAge (Levine et al. 2018), computed automatically from any panel containing the nine PhenoAge markers

Limitations: iOS only — no Android app, and no web version. The App Store listing is US-only, so it cannot be downloaded from other storefronts. Apple Watch is the only wearable integrated so far.

Download Merios on the App Store →

2. InsideTracker

Best for: bundled blood testing and tracking with DNA integration

InsideTracker is a testing-and-tracking platform — you order blood tests through them (drawn at Quest locations or via mobile phlebotomy), and results appear in their dashboard with personalized recommendations. Their Ultimate plan tests up to 48 biomarkers. They also offer DNA testing that analyzes genetic markers related to fitness, inflammation, and nutrient metabolism, and integrate with wearables like Garmin and Apple Health.

Key features:

• Blood testing at Quest locations or at-home mobile draw
• Up to 48 biomarkers with AI-driven recommendations
• DNA integration (20,000+ genetic markers)
• Wearable sync (Garmin, Apple Health, Fitbit)
• InnerAge biological age calculation

Pricing: $149/year membership plus per-test costs ($199 for Foundation/26 markers, $589 for Ultimate/48 markers)

Limitations: expensive when you add testing costs; results from your doctor or other labs can be uploaded, but only with the $149/year membership (up to 30 result sets a year); US and Canada only

3. Function Health

Best for: comprehensive testing with 100+ biomarkers in a single panel

Function Health offers one of the broadest testing panels available — 160-plus lab tests a year covering metabolic health, cardiovascular markers (including ApoB and Lp(a)), liver, kidney, thyroid, hormones, nutrients, heavy metals, inflammatory markers, and autoimmune markers. The membership splits them across two draws: 100-plus at the annual visit and 60-plus at a follow-up three to six months later, with phlebotomy included at Quest locations. A Biological Age score is included and tested twice a year, though Function does not publish how it is computed.

Key features:

• 100+ biomarkers per panel (the most comprehensive standard panel available)
• Two lab visits per year included in membership
• Dashboard with trend tracking across visits
• Includes advanced markers like Lp(a), ApoB, cystatin C, and heavy metals that most doctors do not order

Pricing: $365/year, HSA and FSA eligible (checked September 2026). Not available in Rhode Island, Hawaii or Puerto Rico, and New York and New Jersey carry higher testing costs.

Limitations: built around its own panels — past results can be uploaded, but only as a member; requires Quest Diagnostics visits (no at-home option); no wearable integration; US only; high price point

4. SiPhox Health

Best for: at-home finger-prick testing with wearable integration

SiPhox uses silicon photonic technology for at-home blood collection via finger prick — no lab visit required. They offer five specialized panels ranging from 18 to 60+ biomarkers. The platform integrates with over 300 devices including Apple Watch, Oura Ring, CGMs, and Eight Sleep.

Key features:

• At-home finger-prick collection (no lab visit needed)
• 5 specialized panels (Core, Heart, Hormone, etc.)
• Integration with 300+ devices and wearables
• Longitudinal tracking with health score

Pricing: panels start at $124 per test; subscription plans reduce per-test cost (monthly plans from ~$24/month)

Limitations: finger-prick collection means smaller sample volumes and potentially fewer markers per panel; some advanced markers require venous blood draw; newer company with less track record

5. Carrot Care

Best for: free bloodwork tracking on iPhone with biological age calculation

Carrot Care is an iPhone app that lets you upload lab results via PDF or photo and tracks 1,000+ biomarkers with reference ranges. It includes a phenotypic age calculator that estimates biological age from your bloodwork. Data is stored locally on your device with optional iCloud backup.

Key features:

• PDF and photo upload with OCR extraction
• 1,000+ biomarker database
• Phenotypic age calculator
• Local data storage (privacy-first)
• Free core features

Pricing: free tier available; premium tier for enhanced OCR accuracy and additional features

Limitations: iPhone only; no wearable integration; no optimal/longevity ranges; OCR accuracy can vary by lab format; premium features require subscription

6. Soka

Best for: organizing multiple types of medical tests in one platform

Soka is a medical test management platform that goes beyond blood tests — it supports hair mineral analysis, urine tests, and other lab work. AI reads your reports and extracts values automatically. The interface includes heatmaps, interactive timelines, and side-by-side test comparisons. Data is processed and stored in the EU under GDPR compliance.

Key features:

• Supports multiple test types (blood, urine, hair mineral analysis)
• AI-powered PDF extraction
• Interactive timelines and heatmaps
• GDPR-compliant EU data storage
• Side-by-side test comparison

Pricing: free tier with limited features; paid plans for full access

Limitations: more of a medical records organizer than a health optimization tool; no wearable integration; no optimal ranges for longevity; web-based (no native mobile app)

7. Biotracker

Best for: free, privacy-first blood test tracking with no account required

Biotracker is a free web-based tool from Australia. Drag and drop your lab PDF, and it extracts biomarkers and displays them in clean interactive charts. All processing happens client-side in your browser — no data is sent to a server. You can export reports to share with your doctor.

Key features:

• Completely free with no account required
• Client-side processing (data never leaves your browser)
• PDF drag-and-drop with auto-extraction
• Interactive charts and trend visualization
• Export reports for your doctor

Pricing: free

Limitations: web-only (no mobile app); limited biomarker database compared to dedicated platforms; no reference range context or health insights; no wearable integration; basic feature set

8. Apple Health (Health Records)

Best for: passively receiving lab results from supported healthcare providers

If your healthcare provider supports Apple Health Records, your lab results can flow directly into the Health app on your iPhone. This is not a dedicated blood test tracker — it is a feature within Apple's health ecosystem. Results appear alongside your other health data (steps, heart rate, sleep).

Key features:

• Automatic sync from supported healthcare providers
• Integrated with Apple Watch data natively
• No manual upload required
• Strong privacy (on-device encryption)

Pricing: free (built into iPhone)

Limitations: only works if your healthcare provider supports Health Records (many do not); no PDF upload for results from other labs; no trend visualization or biomarker analysis; no reference range context beyond what the provider sends; no optimal ranges

Comparison table

Biomarker tracking apps and software: how the category differs

"Blood test tracking" and "biomarker tracking" are used interchangeably, but the second is broader, and the top platforms for tracking biomarkers are not always the best lab-report tools. A blood test tracker starts from a lab report. Biomarker tracking software covers anything measured and trended: lab markers, but also wearable-derived ones such as resting heart rate, HRV, VO2 max and sleep, plus body composition. If you search for a biomarker tracking app and land on a pure lab-report tool, half of what you wanted to trend will not be in it.

Three things separate the platforms worth using from the rest.

One timeline, two data sources. The point of combining lab and wearable data is seeing them on the same axis — whether an ApoB or HbA1c change lines up with months of better sleep, or with more time in zone 2. Merios and SiPhox Health are the two picks here that do both. The testing memberships mostly do not, and Apple Health stores both but trends them in separate places.

Ingesting the history you already have. Software built around its own panel starts your timeline on day one. A lab-agnostic tracker can backfill years of past PDFs, which is what makes a trend readable in the first year rather than the third.

Ranges that mean something. Most software shows the standard lab range. Fewer show an optimal range alongside it, which is the distinction that matters if you are following the biomarkers tied to longevity rather than screening for disease: a result can sit inside the lab range and still be far from where you would want it.

For a like-for-like look at the largest testing platform in this category, see Function Health vs Superpower and Function Health alternatives. To start trending your own markers, upload a past lab PDF to Merios — scanning lab reports is part of Merios Plus, $44/year with a 7-day free trial on the annual plan.

How to choose

We compare Merios head-to-head with two of these tools in depth — Merios vs InsideTracker and Merios vs SiPhox Health — and compare the lab-testing services between themselves in Function Health vs Superpower and Whoop Advanced Labs vs Function Health.

If you already get blood work through your doctor and want to track results alongside your Apple Watch data, Merios is the best fit. You keep your existing lab relationship, upload any PDF, and get both standard and optimal ranges with wearable context.

If you want testing and tracking bundled and are willing to pay a premium, InsideTracker (for DNA integration and recommendations) or Function Health (for the broadest panel) are strong choices. The tradeoff is that you are locked into their testing ecosystem.

If you want at-home collection without a lab visit, SiPhox is the leading option with finger-prick technology and broad wearable integration.

If you want a free tracker right now, Biotracker (web, no account needed) or Carrot Care (iPhone, with biological age) are the best no-cost options.

If you want everything in one place — blood tests, wearable data, optimal ranges, and trend tracking — that is what Merios is building.

Tracking biomarkers for longevity, not just "normal"

The reason to track blood work at all is that trends beat snapshots — and for longevity, the trend of the right markers is what matters. If your goal is healthspan rather than just catching disease, the app you choose should make it easy to follow the markers tied to how you age: ApoB, hs-CRP, HbA1c and fasting insulin, and the rest of the longevity biomarker panel, against optimal ranges rather than the wide "normal" bands. From there, the value is seeing whether your actions move the numbers — whether the foods you eat for longevity lower your ApoB and CRP, or whether the levers that lower your biological age show up in your metabolic markers over the following months. A tracker that only stores results is a filing cabinet; one that trends the longevity-relevant markers against optimal ranges is a feedback loop.

A related but distinct question is which app should produce your aging score rather than store your labs — Whoop, Oura, Apple's new Health Age, or an epigenetic test. That is a different shortlist, and the reliability caveats are larger than the marketing admits: see the best longevity apps in 2026, and which age scores to trust.

How Merios helps

Upload any blood test PDF to Merios and we automatically extract 130+ biomarkers, compare them to both standard and optimal reference ranges, and track your trends over time. See all your numbers in one dashboard alongside your Apple Watch data. Stop guessing what your results mean.

Upload your blood test to Merios →

This article is for informational purposes only. Pricing and features may change — check each app's website for current information. Merios is not affiliated with any of the apps listed above.