# RollerSafe vs Train.Red APP

The clearest difference is iOS requirement: RollerSafe at 9.0 against Train.Red APP's 15.0. 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.

## The numbers

| Metric | RollerSafe | Train.Red APP |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/trainred-app/id6451237438/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | — | Every 4 weeks |
| Monetization | — | Free |
| Size | 16 MB | 100 MB |
| Requires iOS | **9.0** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [RollerSafe AS](https://appshunter.io/developer/1191071535) | [Train.Red B.V.](https://appshunter.io/developer/1646391181) |

## What reviewers say

### RollerSafe

[App page](https://appshunter.io/ios/app/rollersafe/id1191071536)

**Features:** macOS Compatibility

**In-app purchases:** none


### Train.Red APP

[App page](https://appshunter.io/ios/app/trainred-app/id6451237438)

This app monitors muscle oxygen saturation to provide real-time physiological insights for athletes and coaches. It helps optimize performance, track recovery, and analyze training data with actionable metrics.

**Highlights:** Muscle oxygen saturation monitoring, Real-time physiological insights, Performance and recovery tracking, Workout analysis and data export, Team/organization structure, Live data overlay

**In-app purchases:** none


## Frequently asked questions

### Is RollerSafe free?

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

### Is Train.Red APP free?

Train.Red APP is free to download, with no in-app purchases.

### Do RollerSafe or Train.Red APP have ads?

Neither RollerSafe nor Train.Red APP shows ads.

---

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