Comparison

37CELLS vs Health Webhook

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

37CELLS

This health and fitness platform unifies your data from various wearables into a single, intuitive interface. It offers an AI health companion, health age assessment, and performance benchmarking. Share your progress and insights with others.

Highlights
  • Aggregates data from multiple wearables
  • Personalized AI health companion (FitBot)
  • Health age determination
  • Gear usage tracking
  • Performance benchmarking
  • Fitness Selfie sharing
Features
Read full description

37CELLS’ health and fitness platform aggregates all your data into one streamlined, user-friendly interface. Whether you’re an individual striving to improve your overall health, a fitness enthusiast or athlete, 37CELLS seamlessly syncs your wearables to provide a holistic view of your health metrics in one place. Supports multiple wearables including Garmin, Fitbit, and Apple smartwatches, with regular new features added. With 37CELLS you can Access FitBot, your personalised AI health companion Determine your health age Track your gear usage Benchmark your performance against peers Overlay your training data on a Fitness Selfie, write a personal message and share with others or on social media

About

Health Webhook

This app automatically sends your Health data to any URL you configure in real time. It supports a wide range of health metrics and integrates with automation tools like Zapier and Home Assistant. All data remains on your device and is sent directly to your specified endpoints.

Highlights
  • Real-time data syncing
  • Supports numerous health metrics
  • Integrates with automation tools
  • Multiple webhook support
  • Shortcuts app integration
  • Sync log for tracking
Features
Read full description

Health Webhook sends your Health data to any URL you configure. Automatically, in real time. Perfect for personal automation with tools like n8n, Make, Zapier, Home Assistant, or any custom backend. If it accepts a POST request, Health Webhook can feed it your health data. SUBSCRIPTION REQUIRED Health Webhook is a paid app. You must start a subscription or buy the lifetime option to sync data. The app shows the prices before you pay. Manage or cancel your subscription at any time in your Apple ID settings. Early supporters who bought the app before subscriptions keep full access. WHAT IT SYNCS • Steps & distance • Sleep (including Core, Deep, REM stages) • Heart rate & HRV • Active calories & BMR • Blood pressure & blood glucose • Oxygen saturation (SpO₂) • Weight, BMI, body fat • Workouts & exercise sessions • Respiratory rate, resting heart rate • Nutrition (calories, protein, carbs, fat) • Floors climbed, water intake, and more HOW IT WORKS Add one or more webhook URLs. The app fires a JSON POST to each URL whenever new health data arrives. No polling needed. You can also trigger a manual sync or build Shortcuts automations for scheduled syncing. MULTIPLE WEBHOOKS Add as many endpoints as you need. Each sync posts to all configured webhooks simultaneously with exponential backoff retry on failure. SHORTCUTS SUPPORT The "Sync Health Data" action is available in the Shortcuts app, so you can schedule syncs via time-based automations without leaving the app open. SYNC LOG Every sync is logged with a timestamp, status, and data summary so you can see exactly what was sent and when. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://hcwebhook.com/privacy PRIVACY All data stays on your device and goes directly to the webhook URLs you configure. Nothing is sent to any third-party server. The developer never sees your health data. Requires HealthKit permission. Background delivery works best when the app has been opened at least once after device restart.

Screenshots

37CELLS4 screens
Health Webhook4 screens

Verdict

The call

The clearest difference is review sentiment: 37CELLS at 100% against Health Webhook's 0%. 37CELLS also leads on rating (5.0 vs 1.0) and monetization model (free vs paid). Health Webhook's advantage is update cadence (every 2 days vs every 3 weeks). On price, ratings volume, ads and in-app purchases there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

37CELLS holds the better App Store score, 5.0 against 1.0. Both are backed by a comparable volume of ratings — 2 and 1 respectively. Written reviews point the same way: 100% of 37CELLS's written reviews are positive against 0% of Health Webhook's.

UpkeepUpdate frequency

37CELLS ships an update every 3 weeks, Health Webhook every 2 days. The most recent releases landed on October 10, 2026 and October 28, 2026 respectively.

Scorecard5 real differences · 5 level
37CELLS versus Health Webhook: the parameters behind the verdict, then further details
Parameter37CELLSHealth Webhook
PriceFreeFree
Rating5.0 (2 ratings) — better1.0 (1 ratings)
Positive reviews100.0% of reviews — better0.0% of reviews
Number of ratings2 — better1
Update frequencyEvery 3 weeksEvery 2 days — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree — betterPaid
DevicesiPhone, iPodiPhone, iPad
Requires iOS15.8.3 — better26.0
Further details — not scored
Size52 MB13 MB
Age rating4+4+
DeveloperHULK MEDIANaveen Mathivanan

Customer experience

37CELLS

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews2 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Health Webhook

All ratings1 ratings
Positive0.0%
Neutral0.0%
Negative100.0%
Written reviews2 reviews
Positive0.0%
Neutral50.0%
Negative50.0%

In-app purchases

None

37CELLS

No in-app purchases

None

Health Webhook

No in-app purchases

Questions

Is 37CELLS free?
37CELLS is free to download, with no in-app purchases.
Is Health Webhook free?
Health Webhook is free to download, with no in-app purchases.
Which has better reviews, 37CELLS or Health Webhook?
37CELLS is rated higher. 37CELLS averages 5.0 out of 5 from 2 ratings, while Health Webhook averages 1.0 from 1 ratings.
Do 37CELLS or Health Webhook have ads?
Neither 37CELLS nor Health Webhook shows ads.
Which is updated more often, 37CELLS or Health Webhook?
37CELLS ships an update every 3 weeks, and Health Webhook every 2 days. Most recently, 37CELLS was updated on October 10, 2026 and Health Webhook on October 28, 2026.

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