# OWE vs PS 331 BK

The clearest difference is update cadence: OWE at every 3 days against PS 331 BK's monthly. On price, ads, in-app purchases and device support there is nothing between them.

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

OWE ships an update every 3 days, PS 331 BK monthly. The most recent releases landed on September 19, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | OWE | PS 331 BK |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 days** | Monthly |
| Size | 33 MB | 79 MB |
| Requires iOS | 14.0 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Victor Alarcon](https://appshunter.io/developer/1540972481) | [The Detective WenJian Liu School of Civics and Entrepreneurship](https://appshunter.io/developer/1785707258) |

## What reviewers say

### OWE

[App page](https://appshunter.io/ios/app/owe-csa/id6670768115)

**Features:** macOS Compatibility

**In-app purchases:** none


### PS 331 BK

[App page](https://appshunter.io/ios/app/ps-331-bk/id6739505270)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is OWE free?

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

### Is PS 331 BK free?

PS 331 BK is free to download, with no in-app purchases.

### Do OWE or PS 331 BK have ads?

Neither OWE nor PS 331 BK shows ads.

### Which is updated more often, OWE or PS 331 BK?

OWE ships an update every 3 days, and PS 331 BK monthly. Most recently, OWE was updated on September 19, 2026 and PS 331 BK on October 16, 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.*