# Fitter vs move/think

The clearest difference is in-app purchases: move/think at none against Fitter's 1. move/think also leads on ads (none vs shown). Fitter's advantage is update cadence (every 6 days vs every 2 weeks). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Fitter sells 1 one-off in-app purchase. move/think asks for nothing beyond the download.

Fitter ships an update every 6 days, move/think every 2 weeks. The most recent releases landed on October 23, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Fitter | move/think |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (68 ratings)](https://appshunter.io/ios/app/fitter-bike/id1528225944/reviews)** | — |
| Number of ratings | **68** | — |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 6 days** | Every 2 weeks |
| Monetization | Free with in-app purchases | — |
| Size | 39 MB | 175 MB |
| Requires iOS | **17** | 18.0 |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Jongheon Lee](https://appshunter.io/developer/1528225946) | [Zach Walsh](https://appshunter.io/developer/1896730308) |

## What reviewers say

### Fitter

[App page](https://appshunter.io/ios/app/fitter-bike/id1528225944)

Improve your cycling efficiency and safety with AI-powered posture analysis.  Simply record a video of yourself riding to receive an easy diagnosis and corrections for improper saddle height, reducing injury risk.

**Highlights:** AI-powered posture diagnosis, Video analysis of riding posture, Saddle height correction, Injury risk reduction, Improved cycling efficiency

**Features:** Family Sharing, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro | $4.99 | one-time |


### move/think

[App page](https://appshunter.io/ios/app/movethink/id6770284427)

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

**In-app purchases:** none


## Frequently asked questions

### Is Fitter free?

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

### Is move/think free?

move/think is free to download, with no in-app purchases.

### Do Fitter or move/think have ads?

Fitter shows ads; move/think does not.

### Which is updated more often, Fitter or move/think?

Fitter ships an update every 6 days, and move/think every 2 weeks. Most recently, Fitter was updated on October 23, 2026 and move/think on October 25, 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.*