# WatchMyBack vs Trace Run

The clearest difference is ads: WatchMyBack at none against Trace Run's shown. Trace Run's advantage is update cadence (every 2 days vs every 2 weeks). On price, in-app purchases, device support and iOS requirement there is nothing between them.

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

WatchMyBack ships an update every 2 weeks, Trace Run every 2 days. The most recent releases landed on September 5, 2026 and September 14, 2026 respectively.

## The numbers

| Metric | WatchMyBack | Trace Run |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 2 weeks | **Every 2 days** |
| Size | 10 MB | 24 MB |
| Requires iOS | **16.0** | 17.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Ta Wei Tan](https://appshunter.io/developer/1841157699) | [hyunjin lee](https://appshunter.io/developer/1562961360) |

## What reviewers say

### WatchMyBack

[App page](https://appshunter.io/ios/app/watchmyback-posture-tracker/id6754323963)

**Features:** macOS Compatibility

**In-app purchases:** none


### Trace Run

[App page](https://appshunter.io/ios/app/trace-run/id6761301602)

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

**In-app purchases:** none


## Frequently asked questions

### Is WatchMyBack free?

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

### Is Trace Run free?

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

### Do WatchMyBack or Trace Run have ads?

Trace Run shows ads; WatchMyBack does not.

### Which is updated more often, WatchMyBack or Trace Run?

WatchMyBack ships an update every 2 weeks, and Trace Run every 2 days. Most recently, WatchMyBack was updated on September 5, 2026 and Trace Run on September 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.*