# move/think vs Open Stress

The clearest difference is in-app purchases: move/think at none against Open Stress's 1. On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Open Stress sells 1 in-app purchase, starting at $9.99 per year. move/think asks for nothing beyond the download.

move/think ships an update every 2 weeks, Open Stress every 3 weeks. The most recent releases landed on October 25, 2026 and October 23, 2026 respectively.

## The numbers

| Metric | move/think | Open Stress |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Every 3 weeks |
| Size | 175 MB | 6 MB |
| Requires iOS | 18.0 | **17.0** |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 12+ |
| Developer | [Zach Walsh](https://appshunter.io/developer/1896730308) | [Sihang Chen](https://appshunter.io/developer/1479493730) |

## What reviewers say

### move/think

[App page](https://appshunter.io/ios/app/movethink/id6770284427)

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

**In-app purchases:** none


### Open Stress

[App page](https://appshunter.io/ios/app/open-stress-hrv-notifier/id6792768616)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Open Stress Annual | $9.99 | per year |


## Frequently asked questions

### Is move/think free?

move/think is free to download, with no in-app purchases.

### Is Open Stress free?

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

### Do move/think or Open Stress have ads?

Neither move/think nor Open Stress shows ads.

### Which is updated more often, move/think or Open Stress?

move/think ships an update every 2 weeks, and Open Stress every 3 weeks. Most recently, move/think was updated on October 25, 2026 and Open Stress on October 23, 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.*