# Box Breathing vs O'lin

The clearest difference is iOS requirement: Box Breathing at 16.0 against O'lin's 26.0. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Box Breathing sells 5 in-app purchases, starting at $9.99 per month and O'lin sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Box Breathing ships an update every 3 weeks, O'lin monthly. The most recent releases landed on October 14, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Box Breathing | O'lin |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (318 ratings)](https://appshunter.io/ios/app/box-breathing-float/id1605558336/reviews)** | — |
| Number of ratings | **318** | — |
| Positive reviews | 78.6% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Monthly |
| Monetization | Free with in-app purchases | — |
| Size | 96 MB | 3 MB |
| Requires iOS | **16.0** | 26.0 |
| Devices | iPhone, Vision Pro | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [STRV s.r.o.](https://appshunter.io/developer/330549300) | [Eduard Novohatsky](https://appshunter.io/developer/1814905516) |

## What reviewers say

### Box Breathing

[App page](https://appshunter.io/ios/app/box-breathing-float/id1605558336)

Enhance your well-being with guided breathwork exercises. This app offers personalized sessions based on a breathing test, with categories for calm, sleep, focus, and energy. Experience immersive audio, haptic feedback, and sound cues for stress reduction and improved performance.

**Highlights:** Personalized breathing test, Exercise categories (Calm, Sleep, Focus, Energize), Audio guide and sound cues, Haptic feedback, CO2 tolerance test, Stress and anxiety relief

**Features:** Family Sharing

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Float PRO - Monthly Membership | $9.99 | per month |
| Float PRO Breathing Exercises | $39.99 | per year |
| Float PRO Breathing Exercises | $49.99 | per year |
| Float PRO Breathing Exercises | $69.99 | per year |
| Float PRO Breathing Exercises | $199.99 | one-time |


### O'lin

[App page](https://appshunter.io/ios/app/olin-intermittent-fasting/id6758303258)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| O’lin Lifetime | $19.99 | one-time |


## Frequently asked questions

### Is Box Breathing free?

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

### Is O'lin free?

O'lin is free to download, with in-app purchases available.

### Do Box Breathing or O'lin have ads?

Neither Box Breathing nor O'lin shows ads.

### Which is updated more often, Box Breathing or O'lin?

Box Breathing ships an update every 3 weeks, and O'lin monthly. Most recently, Box Breathing was updated on October 14, 2026 and O'lin on October 7, 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.*