# Pi Course vs ODTU

The clearest difference is update cadence: ODTU at every 9 days against Pi Course's every 6 weeks. ODTU also leads on iOS requirement (12.0 vs 15.0). 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.

Pi Course ships an update every 6 weeks, ODTU every 9 days. The most recent releases landed on September 29, 2026 and September 18, 2026 respectively.

## The numbers

| Metric | Pi Course | ODTU |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Every 9 days** |
| Size | 126 MB | 14 MB |
| Requires iOS | 15.0 | **12.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [PI COURSE EGITIM DANISMANLIK YAZILIM ORGANIZASYON ANONIM SIRKETI](https://appshunter.io/developer/1746075511) | [Orta Dogu Teknik Universitesi](https://appshunter.io/developer/1803144647) |

## What reviewers say

### Pi Course

[App page](https://appshunter.io/ios/app/pi-course/id6502600295)

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

**In-app purchases:** none


### ODTU

[App page](https://appshunter.io/ios/app/odtu/id6749893113)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Pi Course free?

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

### Is ODTU free?

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

### Do Pi Course or ODTU have ads?

Neither Pi Course nor ODTU shows ads.

### Which is updated more often, Pi Course or ODTU?

Pi Course ships an update every 6 weeks, and ODTU every 9 days. Most recently, Pi Course was updated on September 29, 2026 and ODTU on September 18, 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.*