# Stretch Yoga vs Shelly's Swim

The clearest difference is update cadence: Shelly's Swim at every 3 weeks against Stretch Yoga's every 3 months. Shelly's Swim 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.

Stretch Yoga ships an update every 3 months, Shelly's Swim every 3 weeks. The most recent releases landed on September 19, 2026 and September 1, 2026 respectively.

## The numbers

| Metric | Stretch Yoga | Shelly's Swim |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 3 weeks** |
| Size | 55 MB | 79 MB |
| Requires iOS | 15.1 | **13.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Momence, Inc.](https://appshunter.io/developer/1577856011) | [Zappasoft Pty Ltd](https://appshunter.io/developer/379436504) |

## What reviewers say

### Stretch Yoga

[App page](https://appshunter.io/ios/app/stretch-yoga/id6708221618)

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

**In-app purchases:** none


### Shelly's Swim

[App page](https://appshunter.io/ios/app/shellys-swim/id6778033744)

**Features:** macOS Compatibility, Apple Wallet

**In-app purchases:** none


## Frequently asked questions

### Is Stretch Yoga free?

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

### Is Shelly's Swim free?

Shelly's Swim is free to download, with no in-app purchases.

### Do Stretch Yoga or Shelly's Swim have ads?

Neither Stretch Yoga nor Shelly's Swim shows ads.

### Which is updated more often, Stretch Yoga or Shelly's Swim?

Stretch Yoga ships an update every 3 months, and Shelly's Swim every 3 weeks. Most recently, Stretch Yoga was updated on September 19, 2026 and Shelly's Swim on September 1, 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.*