# Wake Up Stronger vs Trajectory

The clearest difference is device support: Wake Up Stronger at 3 against Trajectory's —. Wake Up Stronger also leads on iOS requirement (15.6 vs 18.5). On price and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | Wake Up Stronger | Trajectory |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | — |
| Update frequency | Every 5 weeks | — |
| Size | 39 MB | 2 MB |
| Requires iOS | **15.6** | 18.5 |
| Devices | **iPhone, iPad, iPod** | — |
| Age rating | 4+ | 17+ |
| Developer | [Jim Depoorter](https://appshunter.io/developer/1597720962) | [Mathieu Bonte](https://appshunter.io/developer/1876251649) |

## What reviewers say

### Wake Up Stronger

[App page](https://appshunter.io/ios/app/wake-up-stronger/id6745224553)

**Features:** macOS Compatibility

**In-app purchases:** none


### Trajectory

[App page](https://appshunter.io/ios/app/trajectory-weight-tracker/id6759000055)

**In-app purchases:** none


## Frequently asked questions

### Is Wake Up Stronger free?

Wake Up Stronger is free to download, with no in-app purchases.

### Is Trajectory free?

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

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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.*