# eRMT vs Smart Breathing Trainer

The clearest difference is update cadence: Smart Breathing Trainer at every 4 days against eRMT's every 2 months. On price, ads, 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.

eRMT ships an update every 2 months, Smart Breathing Trainer every 4 days. The most recent releases landed on October 16, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | eRMT | Smart Breathing Trainer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.2 (6 ratings)](https://appshunter.io/ios/app/ermt/id6472037616/reviews)** | — |
| Number of ratings | **6** | — |
| Positive reviews | 33.3% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 4 days** |
| Monetization | Free | — |
| Size | 42 MB | 51 MB |
| Requires iOS | 15.6 | **15.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 12+ |
| Developer | [Chongqing Moffy InnovationTechnology Co,Ltd](https://appshunter.io/developer/1716510724) | [广州鹤和健康科技有限公司](https://appshunter.io/developer/1835622354) |

## What reviewers say

### eRMT

[App page](https://appshunter.io/ios/app/ermt/id6472037616)

This app enhances respiratory muscle training with interactive games. It connects to a specialized trainer device via Bluetooth, allowing users to control in-game actions through breathing exercises. Designed for entertainment and training efficiency, it's intended for use with specific hardware.

**Highlights:** Connects to Sonmol/Nascool Respiratory Muscle Trainer, Bluetooth connectivity, Three interactive training games, Inhale/exhale controlled gameplay, Progress tracking for training efficiency, CE-certified and FDA-approved medical device integration

**In-app purchases:** none


### Smart Breathing Trainer

[App page](https://appshunter.io/ios/app/smart-breathing-trainer/id6751532075)

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

**In-app purchases:** none


## Frequently asked questions

### Is eRMT free?

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

### Is Smart Breathing Trainer free?

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

### Do eRMT or Smart Breathing Trainer have ads?

Neither eRMT nor Smart Breathing Trainer shows ads.

### Which is updated more often, eRMT or Smart Breathing Trainer?

eRMT ships an update every 2 months, and Smart Breathing Trainer every 4 days. Most recently, eRMT was updated on October 16, 2026 and Smart Breathing Trainer on October 10, 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.*