# SmartFit vs ChironMotion IMU

The clearest difference is in-app purchases: SmartFit at none against ChironMotion IMU's 2. SmartFit also leads on iOS requirement (12.0 vs 18.0). ChironMotion IMU's advantage is device support. On price there is nothing between them.

Both are free to download. ChironMotion IMU sells 2 in-app purchases, starting at $3.99 per month. SmartFit asks for nothing beyond the download.

## The numbers

| Metric | SmartFit | ChironMotion IMU |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | — | No |
| Update frequency | — | Every 2 months |
| Size | 59 MB | 21 MB |
| Requires iOS | **12.0** | 18.0 |
| Devices | — | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Active Learning Solutions Limited](https://appshunter.io/developer/1183259428) | [Yi-Fu Chen](https://appshunter.io/developer/1873701789) |

## What reviewers say

### SmartFit

[App page](https://appshunter.io/ios/app/smartfit/id1645040783)

**In-app purchases:** none


### ChironMotion IMU

[App page](https://appshunter.io/ios/app/chironmotion-imu/id6758951844)

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Monthly Plan | $3.99 | per month |
| Pro Yearly Plan | $39.99 | per year |


## Frequently asked questions

### Is SmartFit free?

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

### Is ChironMotion IMU free?

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

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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.*