# OneRen vs TRIM TRAINZ

The clearest difference is in-app purchases: OneRen at none against TRIM TRAINZ's 1. TRIM TRAINZ's advantage is update cadence (every 3 weeks vs every 6 weeks). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. TRIM TRAINZ sells 1 in-app purchase, starting at $249.99 per month. OneRen asks for nothing beyond the download.

OneRen ships an update every 6 weeks, TRIM TRAINZ every 3 weeks. The most recent releases landed on October 13, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | OneRen | TRIM TRAINZ |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/oneren/id1644933095/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 16.7% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Every 3 weeks** |
| Monetization | Free | — |
| Size | 105 MB | 55 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 17+ | 4+ |
| Developer | [Renfrewshire Leisure Limited](https://appshunter.io/developer/1644933097) | [Aidan Trim](https://appshunter.io/developer/1889201003) |

## What reviewers say

### OneRen

[App page](https://appshunter.io/ios/app/oneren/id1644933095)

Easily book and manage fitness classes on the go. Receive real-time updates on class schedules, news, and special offers. Connect with your favorite fitness centers and share your activities with friends.

**Highlights:** Fitness class timetables, Real-time booking management, Center information and opening times, News and push notifications, Special offers and promotions, HealthKit integration for activity sharing

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

**In-app purchases:** none


### TRIM TRAINZ

[App page](https://appshunter.io/ios/app/trim-trainz/id6761374917)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| TRIM TRAINZ APP PLAN | $249.99 | per month |


## Frequently asked questions

### Is OneRen free?

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

### Is TRIM TRAINZ free?

TRIM TRAINZ is free to download, with in-app purchases available.

### Do OneRen or TRIM TRAINZ have ads?

Neither OneRen nor TRIM TRAINZ shows ads.

### Which is updated more often, OneRen or TRIM TRAINZ?

OneRen ships an update every 6 weeks, and TRIM TRAINZ every 3 weeks. Most recently, OneRen was updated on October 13, 2026 and TRIM TRAINZ on October 5, 2026.

---

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