# GymTekno PLUS vs Rett

The clearest difference is update cadence: GymTekno PLUS at every 3 weeks against Rett's every 3 months. GymTekno PLUS also leads on iOS requirement (13.0 vs 15.1). 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.

GymTekno PLUS ships an update every 3 weeks, Rett every 3 months. The most recent releases landed on October 30, 2026 and November 6, 2026 respectively.

## The numbers

| Metric | GymTekno PLUS | Rett |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 3 months |
| Size | 168 MB | 52 MB |
| Requires iOS | **13.0** | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 17+ | 12+ |
| Developer | [Irem Erkin Dicle](https://appshunter.io/developer/1534325366) | [RETT SENDROMLU AILELER YARDIMLASMA VE DAYANISMA DERNEGI](https://appshunter.io/developer/6795479368) |

## What reviewers say

### GymTekno PLUS

[App page](https://appshunter.io/ios/app/gymtekno-plus/id6756013400)

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

**In-app purchases:** none


### Rett

[App page](https://appshunter.io/ios/app/rett/id6795479366)

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

**In-app purchases:** none


## Frequently asked questions

### Is GymTekno PLUS free?

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

### Is Rett free?

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

### Do GymTekno PLUS or Rett have ads?

Neither GymTekno PLUS nor Rett shows ads.

### Which is updated more often, GymTekno PLUS or Rett?

GymTekno PLUS ships an update every 3 weeks, and Rett every 3 months. Most recently, GymTekno PLUS was updated on October 30, 2026 and Rett on November 6, 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.*