# Watch Heartbeat vs HypoMe

The clearest difference is in-app purchases: Watch Heartbeat at none against HypoMe's 2. Watch Heartbeat also leads on iOS requirement (13.0 vs 16.4). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. HypoMe sells 2 in-app purchases, starting at $4.99 per month. Watch Heartbeat asks for nothing beyond the download.

Watch Heartbeat ships an update every 3 weeks, HypoMe every 2 weeks. The most recent releases landed on October 14, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | Watch Heartbeat | HypoMe |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (3 ratings)](https://appshunter.io/ios/app/hypome-self-experiments/id6762094158/reviews)** |
| Number of ratings | — | **3** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 2 weeks** |
| Monetization | — | Freemium |
| Size | 3 MB | 82 MB |
| Requires iOS | **13.0** | 16.4 |
| Devices | **iPhone, iPod, Apple Watch** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Super Tools Technology Co., Limited](https://appshunter.io/developer/1565672297) | [ARTEM SUPRUN](https://appshunter.io/developer/1891214987) |

## What reviewers say

### Watch Heartbeat

[App page](https://appshunter.io/ios/app/watch-heartbeat/id6733222459)

**Features:** Apple Watch app

**In-app purchases:** none


### HypoMe

[App page](https://appshunter.io/ios/app/hypome-self-experiments/id6762094158)

This app helps you scientifically test personal hypotheses about your habits and their effects. It designs experiments, collects data, and provides statistical insights to reveal what truly works for you. Get clear, data-driven answers to your personal 'what if' questions.

**Highlights:** AI Experiment Designer, AI Results Interpreter, AI next-experiment suggestions, Apple Health integration, Baseline → intervention design, Real statistics, Confound tagging

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $4.99 | per month |
| Annual | $29.99 | per year |


## Frequently asked questions

### Is Watch Heartbeat free?

Watch Heartbeat is free to download, with no in-app purchases.

### Is HypoMe free?

HypoMe is free to download, with in-app purchases available.

### Do Watch Heartbeat or HypoMe have ads?

Neither Watch Heartbeat nor HypoMe shows ads.

### Which is updated more often, Watch Heartbeat or HypoMe?

Watch Heartbeat ships an update every 3 weeks, and HypoMe every 2 weeks. Most recently, Watch Heartbeat was updated on October 14, 2026 and HypoMe on October 15, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*