# Trek Diaper vs Overactive Bladder Score

The clearest difference is iOS requirement: Trek Diaper at 9.0 against Overactive Bladder Score's 12.0. On price, update cadence, ads 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.

Trek Diaper ships an update every 3 months, Overactive Bladder Score every 4 months. The most recent releases landed on October 12, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | Trek Diaper | Overactive Bladder Score |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 4 months |
| Size | 24 MB | 36 MB |
| Requires iOS | **9.0** | 12.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 12+ |
| Developer | [Trek2000](https://appshunter.io/developer/409284633) | [Putu Angga Risky Raharja](https://appshunter.io/developer/1164107753) |

## What reviewers say

### Trek Diaper

[App page](https://appshunter.io/ios/app/trek-diaper/id1189867037)

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

**In-app purchases:** none


### Overactive Bladder Score

[App page](https://appshunter.io/ios/app/overactive-bladder-score/id1506597809)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Trek Diaper free?

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

### Is Overactive Bladder Score free?

Overactive Bladder Score is free to download, with no in-app purchases.

### Do Trek Diaper or Overactive Bladder Score have ads?

Neither Trek Diaper nor Overactive Bladder Score shows ads.

### Which is updated more often, Trek Diaper or Overactive Bladder Score?

Trek Diaper ships an update every 3 months, and Overactive Bladder Score every 4 months. Most recently, Trek Diaper was updated on October 12, 2026 and Overactive Bladder Score on October 1, 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.*