# Breathe Bubble vs Qi Curve

The clearest difference is in-app purchases: Qi Curve at none against Breathe Bubble's 3. Breathe Bubble's advantage is device support (4 vs 1). On price, update cadence, ads and iOS requirement there is nothing between them.

Both are free to download. Breathe Bubble sells 3 one-off in-app purchases. Qi Curve asks for nothing beyond the download.

Breathe Bubble ships an update monthly, Qi Curve every 5 weeks. The most recent releases landed on November 4, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Breathe Bubble | Qi Curve |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.0 (2 ratings)](https://appshunter.io/ios/app/breathe-bubble/id6503405050/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 66.7% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Monthly** | Every 5 weeks |
| Monetization | Free with in-app purchases | — |
| Size | 4 MB | 161 MB |
| Requires iOS | 17.2 | **16.4** |
| Devices | **iPhone, iPad, Mac, Vision Pro** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Jason Fleischer](https://appshunter.io/developer/1718340766) | [Stephan Friederich](https://appshunter.io/developer/1896623661) |

## What reviewers say

### Breathe Bubble

[App page](https://appshunter.io/ios/app/breathe-bubble/id6503405050)

Enhance relaxation, improve sleep, and boost energy with guided breathing exercises. Customize your sessions with adjustable inhale, exhale, and hold times, and integrate mantras for deeper focus. Features include white noise and binaural beats to create a serene environment.

**Highlights:** Customizable breathing exercises, Integrated mantras, White noise generator, Binaural beats, Sleep improvement programs, Stress reduction techniques, Energy boosting exercises

**Features:** Family Sharing

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Fully Unlocked | $1.99 | one-time |
| Generously Fully Unlocked | $3.99 | one-time |
| Very Generously Fully Unlocked | $6.99 | one-time |


### Qi Curve

[App page](https://appshunter.io/ios/app/qi-curve/id6769027555)

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

**In-app purchases:** none


## Frequently asked questions

### Is Breathe Bubble free?

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

### Is Qi Curve free?

Qi Curve is free to download, with no in-app purchases.

### Do Breathe Bubble or Qi Curve have ads?

Neither Breathe Bubble nor Qi Curve shows ads.

### Which is updated more often, Breathe Bubble or Qi Curve?

Breathe Bubble ships an update monthly, and Qi Curve every 5 weeks. Most recently, Breathe Bubble was updated on November 4, 2026 and Qi Curve on October 31, 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.*