# Breathing Guide vs Peflex

The clearest difference is ads: Peflex at none against Breathing Guide's shown. Peflex also leads on iOS requirement (13.0 vs 18.2). On price, update cadence, in-app purchases and device support there is nothing between them.

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

Breathing Guide ships an update every 5 days, Peflex every 6 days. The most recent releases landed on October 5, 2026 and October 20, 2026 respectively.

## The numbers

| Metric | Breathing Guide | Peflex |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | **Every 5 days** | Every 6 days |
| Size | 5 MB | 95 MB |
| Requires iOS | 18.2 | **13.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Mizuki Hoshida](https://appshunter.io/developer/1797942917) | [湖南艾瑞特生物医疗科技有限公司](https://appshunter.io/developer/1562668375) |

## What reviewers say

### Breathing Guide

[App page](https://appshunter.io/ios/app/breathing-guide/id6742347856)

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

**In-app purchases:** none


### Peflex

[App page](https://appshunter.io/ios/app/peflex/id6746227608)

**In-app purchases:** none


## Frequently asked questions

### Is Breathing Guide free?

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

### Is Peflex free?

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

### Do Breathing Guide or Peflex have ads?

Breathing Guide shows ads; Peflex does not.

### Which is updated more often, Breathing Guide or Peflex?

Breathing Guide ships an update every 5 days, and Peflex every 6 days. Most recently, Breathing Guide was updated on October 5, 2026 and Peflex on October 20, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*