# four seven eight vs Moss

The clearest difference is iOS requirement: four seven eight at 15.1 against Moss's 17.0. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

four seven eight ships an update every 2 weeks, Moss monthly. The most recent releases landed on October 30, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | four seven eight | Moss |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (8 ratings)](https://appshunter.io/ios/app/four-seven-eight/id6749875998/reviews)** | — |
| Number of ratings | **8** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Monthly |
| Monetization | Free | — |
| Size | 17 MB | 18 MB |
| Requires iOS | **15.1** | 17.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [crtd labs, inc](https://appshunter.io/developer/1745192332) | [Quiet Leaf LLC](https://appshunter.io/developer/6777428492) |

## What reviewers say

### four seven eight

[App page](https://appshunter.io/ios/app/four-seven-eight/id6749875998)

This app guides you through the scientifically proven 4-7-8 breathing technique with visual cues and precise timing. It helps reduce anxiety, promote relaxation, and improve sleep by activating your body's natural calming response. Practice anytime, anywhere with its offline functionality.

**Highlights:** Visual breathing guide with animations, Precise timing for inhale, hold, exhale, Progress tracking calendar, Distraction-free interface, Offline functionality, One-tap start

**In-app purchases:** none


### Moss

[App page](https://appshunter.io/ios/app/moss-meditation-timer/id6777428490)

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is four seven eight free?

four seven eight is free to download, with no in-app purchases.

### Is Moss free?

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

### Do four seven eight or Moss have ads?

Neither four seven eight nor Moss shows ads.

### Which is updated more often, four seven eight or Moss?

four seven eight ships an update every 2 weeks, and Moss monthly. Most recently, four seven eight was updated on October 30, 2026 and Moss 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.*