# ChironMotion Load vs Shellog

The clearest difference is in-app purchases: Shellog at none against ChironMotion Load's 3. Shellog also leads on update cadence (every 4 days vs every 2 weeks). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. ChironMotion Load sells 3 in-app purchases, starting at $3.99 per month. Shellog asks for nothing beyond the download.

ChironMotion Load ships an update every 2 weeks, Shellog every 4 days. The most recent releases landed on October 1, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | ChironMotion Load | Shellog |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Every 4 days** |
| Size | 9 MB | 69 MB |
| Requires iOS | 17.0 | **16.4** |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 12+ |
| Developer | [Yi-Fu Chen](https://appshunter.io/developer/1873701789) | [Minseo Ko](https://appshunter.io/developer/6805713431) |

## What reviewers say

### ChironMotion Load

[App page](https://appshunter.io/ios/app/chironmotion-load/id6770306861)

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ChironMotion Load Pro Monthly | $3.99 | per month |
| ChironMotion Load Pro Annual | $29.99 | per year |
| ChironMotion Load Pro Lifetime | $69.99 | one-time |


### Shellog

[App page](https://appshunter.io/ios/app/shellog-pilates-and-posture/id6805713429)

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

**In-app purchases:** none


## Frequently asked questions

### Is ChironMotion Load free?

ChironMotion Load is free to download, with in-app purchases available.

### Is Shellog free?

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

### Do ChironMotion Load or Shellog have ads?

Neither ChironMotion Load nor Shellog shows ads.

### Which is updated more often, ChironMotion Load or Shellog?

ChironMotion Load ships an update every 2 weeks, and Shellog every 4 days. Most recently, ChironMotion Load was updated on October 1, 2026 and Shellog on October 14, 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.*