# health4ai — Your health data, your AI

> Export iPhone health data to Google Sheets or your database for AI analysis. (iPhone/iPad app by Jeff Littell.)

- Source: https://appshunter.io/ios/app/health4ai/id6783074944 (this page in markdown: same URL + `.md`)
- Developer: [Jeff Littell](https://appshunter.io/developer/6783074946)
- Category: Health & Fitness, Utilities
- Price: Free
- Rating: 5.00/5 from 1 App Store ratings
- Age rating: 4+
- Requires: iOS 17.0 · 2 MB
- Languages: American English
- Released: 2026-09-24
- Data updated: 2026-10-15
- Monetization: free

## What is health4ai?

health4ai moves the health data on your iPhone into a Google Sheet or a database you own, so you and any AI assistant can work with it.

The Health app holds years of your sleep, HRV, heart rate, workouts and 150+ other metrics, but nothing outside your iPhone can read it. health4ai is the bridge.

TWO WAYS TO SAVE

Google Sheets: sign in with Google and health4ai writes one row per day (steps, sleep, heart rate, HRV, workouts and more) into a spreadsheet in your own Google Drive. No setup beyond signing in. health4ai can only see the files it creates.

Your own database: sync every HealthKit sample into a Postgres database you control, typically a free Supabase project, and any MCP-compatible AI client can then query it in plain language. A setup checklist in the app shows which steps are done, and setup takes about ten minutes.

There is no health4ai account and no health4ai server either way.

NOT JUST APPLE WATCH

health4ai syncs anything that writes to the Health app. That includes rings, watches, scales, blood pressure cuffs, glucose monitors and workout and nutrition apps, for example Oura, Garmin, Polar, Coros, Withings, Omron, Dexcom, Strava, Peloton, MyFitnessPal and Cronometer. Coverage depends on what each brand shares with the Health app. The Your Sources screen shows every device and app that has sent data.

WHAT IT DOES

Syncs sleep stages, HRV, resting and walking heart rate, steps, distance, workouts, active energy, VO2 max, respiratory rate, body mass and more.

Syncs each time you open the app, and in the background as often as iOS allows. Sync History shows every run, so you never have to wonder.

Backfills your history too, not just today.

Tells you plainly when a metric is not being shared with the app, instead of showing you an empty chart and calling it complete.

YOUR DATA STAYS YOURS

health4ai never receives, stores or transmits your health data. It travels from your iPhone to your spreadsheet or your database and nowhere else. No analytics on your health data, no advertising, no third-party sharing, no resale. The iOS app and the companion MCP server are both open source under the MIT license, so you can read exactly what they do.

WORKS WITH ANY AI

Any AI client that speaks the Model Context Protocol, through the companion open-source MCP server (pip install health4ai). The app's Connect Your AI screen gives you copy-paste setup for Claude Desktop, Claude Code and Cursor. Purpose-built tools cover daily snapshots, trends, baselines, sleep, workouts and search across your records.

FREE

No subscription, no in-app purchases, no account, no upsell.

## Key features

- Export to Google Sheets
- Sync to your own database
- Works with any AI client
- Supports 150+ health metrics
- Backfills historical data
- Open-source code
- No account or server required

## Is health4ai safe?

Not enough ratings yet to assess health4ai.

## Is health4ai legit?

health4ai has limited verification signals. The AppsHunter Legitimacy Score for health4ai is 58 out of 100 points across 7 verification signals from App Store and developer data.


## Frequently asked questions about health4ai

### Does health4ai have ads?

No, health4ai is completely free of advertisements. The app is developed with a focus on user privacy and does not contain any in-app purchases or upsells.

### How often does health4ai sync data?

health4ai syncs your health data each time you open the app and in the background as often as iOS allows. A Sync History is available within the app to show every sync run.

### What devices and apps are compatible with health4ai?

health4ai syncs data from any device or app that writes to the Health app, including wearables like Oura and Garmin, scales, blood pressure cuffs, glucose monitors, and fitness apps like Strava and MyFitnessPal.

### Can health4ai backfill my historical health data?

Yes, health4ai can backfill your history, not just today's data. This ensures you have a comprehensive record of your health metrics available for analysis.

### Is my health data secure with health4ai?

Yes, your health data remains entirely yours. health4ai never receives, stores, or transmits your health data; it travels directly from your iPhone to your chosen destination.

### What AI clients can I connect health4ai with?

You can connect health4ai with any AI client that speaks the Model Context Protocol via the companion open-source MCP server. Setup instructions are provided for popular clients like Claude Desktop and Cursor.

### What health metrics does health4ai sync?

health4ai syncs a wide range of metrics including sleep stages, HRV, heart rate, steps, distance, workouts, active energy, VO2 max, respiratory rate, body mass, and over 150 other metrics.

### What is the age rating for health4ai?

health4ai has an age rating of 4+. It is available on iPhone and iPad devices.

## Version history (last 4 releases)

### 1.0.3 — 2026-10-10

- Fixes a first Google Sheets sync that said "No health data found" for some people who do have Health data. The sync now continues past an empty stretch of history to the first day with data, and it looks at every kind of data the sheet uses (not only steps, heart rate, sleep and workouts) when deciding where your history begins.
- Sync History now records which days were checked when no data is found, so support can see what happened.

### 1.0.2 — 2026-10-08

- New installs start with Google Sheets: sign in with Google and your health data goes to a spreadsheet in your own Drive. Already syncing to a database? Nothing changes for you.
- iOS 27: if you first shared only your recent Health data and later share all of it, health4ai now imports the older history to your database automatically.
- A clearer notice that tells you where to change what Health shares with the app.
- Setup screens are easier to read at larger text sizes.

### 1.0.1 — 2026-10-03

- Save to Google Sheets: sign in with Google and get one row per day of your health data in a spreadsheet in your own Google Drive. No database needed.
- Sync History: see every sync, including the ones that ran while the app was closed.
- Your Sources: every device and app that sends data, not just Apple Watch.
- A setup checklist that shows exactly which step is done.
- Connect Your AI: copy-paste setup for Claude Desktop, Claude Code and Cursor.
- Tells you when iOS is only sharing your recent health data, and how to share all of it.
- A simpler first screen: one clear next step.

### 1.0 — 2026-09-24

No release notes.

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## More apps by Jeff Littell

- [Wobble Box](https://appshunter.io/ios/app/wobble-box/id6790554249)

All apps by Jeff Littell: https://appshunter.io/developer/6783074946

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-10-15.*