# BellyBio Interactive Breathing vs Breathe2Relax

The clearest difference is in-app purchases: Breathe2Relax at none against BellyBio Interactive Breathing's 4. Breathe2Relax also leads on rating (4.2 vs 4.0) and ratings volume (316 vs 40). BellyBio Interactive Breathing's advantage is update cadence (every 3 months vs every 24 months) and iOS requirement (7.0 vs 15.0). On price, ads and device support there is nothing between them.

Both are free to download. BellyBio Interactive Breathing sells 4 one-off in-app purchases. Breathe2Relax asks for nothing beyond the download.

Breathe2Relax holds the better App Store score, 4.2 against 4.0. That said, the two scores are not equally well evidenced: Breathe2Relax has 316 ratings behind it against 40, so its average is the more settled of the two. Written reviews point the same way: 68% of BellyBio Interactive Breathing's written reviews are positive against 78% of Breathe2Relax's.

BellyBio Interactive Breathing ships an update every 3 months, Breathe2Relax every 24 months. The most recent releases landed on October 16, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | BellyBio Interactive Breathing | Breathe2Relax |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.0 (40 ratings)](https://appshunter.io/ios/app/bellybio-interactive-breathing/id353763955/reviews) | **[4.2 (316 ratings)](https://appshunter.io/ios/app/breathe2relax/id425720246/reviews)** |
| Number of ratings | 40 | **316** |
| Positive reviews | 68.0% of reviews | **77.9% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 24 months |
| Monetization | Free with in-app purchases | **Free** |
| Size | 201 MB | 117 MB |
| Requires iOS | **7.0** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [RelaxLine](https://appshunter.io/developer/352027981) | [Defense Health Agency](https://appshunter.io/developer/1264687017) |

## What reviewers say

### BellyBio Interactive Breathing

[App page](https://appshunter.io/ios/app/bellybio-interactive-breathing/id353763955)

This app uses your iPhone's sensors to create a biofeedback experience synchronized with deep abdominal breathing. It generates music and light patterns that respond to your breath, making relaxation more engaging and measurable. Designed for those already proficient in belly breathing.

**Highlights:** Interactive musical themes synchronized with breathing, Audio stress-level feedback, Breathing color synchronization, Real-time breathing and stress graphs, Breathing and stress logs, 3D Earth animation of users

**Features:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Angels Club | $0.99 | one-time |
| Brownian Dream | $0.99 | one-time |
| Metronomia | $0.99 | one-time |
| Highlands | $0.99 | one-time |

**What reviewers like**

- 👍 Highly recommended by professionals
- 💡 Quantifiable breathing data
- 💡 Innovative breathing tracking
- 💡 Free and valuable
- 👍 Long-time user satisfaction

**What reviewers complain about**

- 🐛 Irregular breathing detection issues
- 🐛 App shuts off frequently
- 🐛 Won't stay open
- 🐛 Fails most attempts
- 🐛 Audio doesn't work

**Reported bugs**

- Keeps saying irregular breathing
- Shuts off repeatedly
- Won't stay open
- Fails almost every effort
- Audio doesn't work

**Requested features**

- Update for newer iOS versions
- More song tracks
- Ability to view past log entries
- More sleek design
- More music/ambiance selections


### Breathe2Relax

[App page](https://appshunter.io/ios/app/breathe2relax/id425720246)

Learn diaphragmatic breathing for stress management. This app offers detailed information on stress's effects and guided exercises to improve mood, control anger, and manage anxiety. It integrates with Apple Watch to track heart rate during sessions.

**Highlights:** Stress management information, Diaphragmatic breathing exercises, Mood stabilization, Anger control, Anxiety management, Heart rate tracking with Apple Watch

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

**In-app purchases:** none

**What reviewers like**

- 🌟 Excellent for stress and anxiety relief
- 👍 Simple and easy to use
- 🧘‍♀️ Helps with breathing and relaxation
- 🤩 Calming and soothing experience
- 💤 Useful for sleep and sleep issues

**What reviewers complain about**

- 🐛 Connectivity issues, unable to stream videos
- 🔇 Lack of audio/sound options
- ⏱️ Limited breathing cycle duration
- 📱 Compatibility issues with older devices
- 🤖 Monotonous voice instructions

**Reported bugs**

- Videos not playing due to connectivity issues
- App crashing or freezing on some devices
- Inability to connect to Apple Watch

**Requested features**

- Ability to set custom breathing cycle duration
- More background music/nature sound options
- Different voice options for guidance
- Integration with Apple Watch/fitness tracking
- Longer breathing sessions beyond 16 cycles


## Frequently asked questions

### Is BellyBio Interactive Breathing free?

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

### Is Breathe2Relax free?

Breathe2Relax is free to download, with no in-app purchases.

### Which has better reviews, BellyBio Interactive Breathing or Breathe2Relax?

Breathe2Relax is rated higher. BellyBio Interactive Breathing averages 4.0 out of 5 from 40 ratings, while Breathe2Relax averages 4.2 from 316 ratings.

### Do BellyBio Interactive Breathing or Breathe2Relax have ads?

Neither BellyBio Interactive Breathing nor Breathe2Relax shows ads.

### Which is updated more often, BellyBio Interactive Breathing or Breathe2Relax?

BellyBio Interactive Breathing ships an update every 3 months, and Breathe2Relax every 24 months. Most recently, BellyBio Interactive Breathing was updated on October 16, 2026 and Breathe2Relax on October 15, 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.*