# Kilohana Elementary vs PS 331 BK

The clearest difference is iOS requirement: PS 331 BK at 13.0 against Kilohana Elementary's 15.0. 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.

Kilohana Elementary ships an update every 3 weeks, PS 331 BK monthly. Both last shipped on November 8, 2026.

## The numbers

| Metric | Kilohana Elementary | PS 331 BK |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Monthly |
| Size | 69 MB | 79 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Education, State of Hawaii Department of](https://appshunter.io/developer/1449860297) | [The Detective WenJian Liu School of Civics and Entrepreneurship](https://appshunter.io/developer/1785707258) |

## What reviewers say

### Kilohana Elementary

[App page](https://appshunter.io/ios/app/kilohana-elementary/id6645736203)

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

**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 Kilohana Elementary free?

Kilohana Elementary 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 Kilohana Elementary or PS 331 BK have ads?

Neither Kilohana Elementary nor PS 331 BK shows ads.

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

Kilohana Elementary ships an update every 3 weeks, and PS 331 BK monthly. Most recently, Kilohana Elementary was updated on November 8, 2026 and PS 331 BK on November 8, 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.*