# KORR vs S35 Training

The clearest difference is update cadence: S35 Training at monthly against KORR's every 16 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.

KORR ships an update every 16 months, S35 Training monthly. The most recent releases landed on September 30, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | KORR | S35 Training |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 16 months | **Monthly** |
| Size | 33 MB | 386 MB |
| Requires iOS | 15.6 | **15.1** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [KORR PILATES LIMITED](https://appshunter.io/developer/1812052102) | [Michela Gill](https://appshunter.io/developer/1827940613) |

## What reviewers say

### KORR

[App page](https://appshunter.io/ios/app/korr/id6745408008)

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

**In-app purchases:** none


### S35 Training

[App page](https://appshunter.io/ios/app/s35-training/id6748911412)

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

**In-app purchases:** none


## Frequently asked questions

### Is KORR free?

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

### Is S35 Training free?

S35 Training is free to download, with no in-app purchases.

### Do KORR or S35 Training have ads?

Neither KORR nor S35 Training shows ads.

### Which is updated more often, KORR or S35 Training?

KORR ships an update every 16 months, and S35 Training monthly. Most recently, KORR was updated on September 30, 2026 and S35 Training on October 5, 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.*