# Box Breathing vs EICalc

The clearest difference is price: Box Breathing at Free against EICalc's $0.99. EICalc's advantage is in-app purchases (none vs 3) and update cadence (daily vs every 4 days). On ads there is nothing between them.

Box Breathing is free to download; EICalc costs $0.99 up front. Box Breathing sells 3 in-app purchases, starting at $2.99 per month. EICalc asks for nothing beyond the download.

Box Breathing ships an update every 4 days, EICalc daily. The most recent releases landed on September 12, 2026 and September 21, 2026 respectively.

## The numbers

| Metric | Box Breathing | EICalc |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 4 days | **Daily** |
| Size | 12 MB | 29 MB |
| Requires iOS | 26.0 | **15.1** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [SleepyBytes SIA](https://appshunter.io/developer/537208079) | [Nastja Asipkina](https://appshunter.io/developer/1848682070) |

## What reviewers say

### Box Breathing

[App page](https://appshunter.io/ios/app/box-breathing-calm-adhd-mind/id6753762790)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Plan | $2.99 | per month |
| Yearly Plan | $13.00 | per year |
| lifetime | $29.99 | one-time |


### EICalc

[App page](https://appshunter.io/ios/app/eicalc/id6755432020)

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

**In-app purchases:** none


## Frequently asked questions

### Is Box Breathing free?

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

### Is EICalc free?

EICalc costs $0.99, with no in-app purchases.

### Do Box Breathing or EICalc have ads?

Neither Box Breathing nor EICalc shows ads.

### Which is updated more often, Box Breathing or EICalc?

Box Breathing ships an update every 4 days, and EICalc daily. Most recently, Box Breathing was updated on September 12, 2026 and EICalc on September 21, 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.*