# Sym Breathing vs 4x4 Timer Interval Training

The clearest difference is review sentiment: Sym Breathing at 94% against 4x4 Timer Interval Training's 0%. Sym Breathing also leads on rating (4.9 vs 2.0) and ratings volume (35 vs 1). 4x4 Timer Interval Training's advantage is in-app purchases (none vs 3) and device support (3 vs 1). On price and ads there is nothing between them.

Both are free to download. Sym Breathing sells 3 in-app purchases, starting at $0.99 per month. 4x4 Timer Interval Training asks for nothing beyond the download.

Sym Breathing holds the better App Store score, 4.9 against 2.0. That said, the two scores are not equally well evidenced: Sym Breathing has 35 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 94% of Sym Breathing's written reviews are positive against 0% of 4x4 Timer Interval Training's.

## The numbers

| Metric | Sym Breathing | 4x4 Timer Interval Training |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.9 (35 ratings)](https://appshunter.io/ios/app/sym-breathing-hrv-coherence/id6575391114/reviews)** | [2.0 (1 ratings)](https://appshunter.io/ios/app/4x4-timer-interval-training/id6759710803/reviews) |
| Number of ratings | **35** | 1 |
| Positive reviews | **94.1% of reviews** | 0.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 weeks | — |
| Monetization | Freemium | **Free** |
| Size | 35 MB | 12 MB |
| Requires iOS | 26.0 | **13.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Daniel Lubbers](https://appshunter.io/developer/1759415354) | [Kesem Solutions Pty Ltd](https://appshunter.io/developer/1751494198) |

## What reviewers say

### Sym Breathing

[App page](https://appshunter.io/ios/app/sym-breathing-hrv-coherence/id6575391114)

This app offers guided breathwork to help you achieve a calm and balanced state. It uses a steady 5.5-second inhale/exhale rhythm to reduce stress, improve focus, and enhance well-being. Features include customizable cues, daily affirmations, and a night mode for sleep.

**Highlights:** Guided 5.5-second inhale/exhale rhythm, Customizable audio, visual, and haptic cues, Daily affirmations for positive mindset, Night mode for reduced blue light, Seamless audio integration with other apps, Effortless session initiation

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $0.99 | per month |
| Annually | $4.99 | per year |
| Lifetime | $24.99 | one-time |


### 4x4 Timer Interval Training

[App page](https://appshunter.io/ios/app/4x4-timer-interval-training/id6759710803)

This app provides a simple, distraction-free interval timer for the Norwegian 4x4 training protocol. It guides users through 4 minutes of intense effort followed by 4 minutes of rest, repeated four times, to improve cardiovascular fitness and VO₂ max. The minimal interface ensures focus on the workout.

**Highlights:** Simple 4x4 interval timer, Clear ON/OFF phase guidance, Optional sound cues, Large, easy-to-read timer, Session progress tracking, Minimal interface

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

**In-app purchases:** none


## Frequently asked questions

### Is Sym Breathing free?

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

### Is 4x4 Timer Interval Training free?

4x4 Timer Interval Training is free to download, with no in-app purchases.

### Which has better reviews, Sym Breathing or 4x4 Timer Interval Training?

Sym Breathing is rated higher. Sym Breathing averages 4.9 out of 5 from 35 ratings, while 4x4 Timer Interval Training averages 2.0 from 1 ratings.

### Do Sym Breathing or 4x4 Timer Interval Training have ads?

Neither Sym Breathing nor 4x4 Timer Interval Training shows ads.

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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.*