# Box Breathing Coach vs Curva

The clearest difference is update cadence: Curva at daily against Box Breathing Coach's every 3 weeks. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Box Breathing Coach sells 3 in-app purchases, starting at $1.49 per 7 days and Curva sells 2 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

Box Breathing Coach ships an update every 3 weeks, Curva daily. The most recent releases landed on October 5, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | Box Breathing Coach | Curva |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/box-breathing-coach-calm/id6743467633/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 3 weeks | **Daily** |
| Monetization | Free with in-app purchases | — |
| Size | 57 MB | 6 MB |
| Requires iOS | 15.6 | **15.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Moses Julius](https://appshunter.io/developer/1552879383) | [Axel Cayetano Alcaraz](https://appshunter.io/developer/6785364540) |

## What reviewers say

### Box Breathing Coach

[App page](https://appshunter.io/ios/app/box-breathing-coach-calm/id6743467633)

This app guides you through various breathing techniques to reduce stress, anxiety, and improve sleep. It offers progress tracking and customizable sessions to help build a healthy daily habit.

**Highlights:** 4-7-8 Breathing, Box Breathing, Deep Breathing, Equal Breathing, Progress Tracking, Customizable durations

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Access Premium weekly | $1.49 | per 7 days |
| breathing exercise | $4.99 | per month |
| breathing exercises-yearly | $39.99 | per year |


### Curva

[App page](https://appshunter.io/ios/app/curva-angle-tracker/id6785364388)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Sin anuncios | $1.99 | one-time |
| Curva Plus | $4.99 | one-time |


## Frequently asked questions

### Is Box Breathing Coach free?

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

### Is Curva free?

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

### Do Box Breathing Coach or Curva have ads?

Both Box Breathing Coach and Curva show ads.

### Which is updated more often, Box Breathing Coach or Curva?

Box Breathing Coach ships an update every 3 weeks, and Curva daily. Most recently, Box Breathing Coach was updated on October 5, 2026 and Curva on October 6, 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.*