# ODTU vs Aina

The clearest difference is in-app purchases: ODTU at none against Aina's 6. ODTU also leads on ads (none vs shown) and iOS requirement (12.0 vs 15.1). On price, update cadence and device support there is nothing between them.

Both are free to download. Aina sells 6 in-app purchases, starting at $1.99 per month. ODTU asks for nothing beyond the download.

ODTU ships an update every 9 days, Aina every 10 days. The most recent releases landed on October 5, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | ODTU | Aina |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/aina/id6754100508/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 9 days** | Every 10 days |
| Monetization | — | Free with in-app purchases |
| Size | 14 MB | 40 MB |
| Requires iOS | **12.0** | 15.1 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Orta Dogu Teknik Universitesi](https://appshunter.io/developer/1803144647) | [Temelmat Egitim Bilisim Arge Yazilim ve Yayincilik Limited Sirketi](https://appshunter.io/developer/1823012384) |

## What reviewers say

### ODTU

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

**Features:** macOS Compatibility

**In-app purchases:** none


### Aina

[App page](https://appshunter.io/ios/app/aina/id6754100508)

This AI-powered learning assistant helps students prepare for exams by analyzing photos of textbook pages. It provides instant solutions, explanations, tips, and relevant videos, all on a single screen. The app also tracks progress and offers personalized practice questions based on identified errors.

**Highlights:** AI-powered photo analysis of textbook pages, Instant solutions, explanations, and tips, Personalized practice questions based on errors, Color-coded learning system for memory retention, Progress tracking and personalized study plans, All learning materials on a single screen

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Aylık Üyelik | $1.99 | per month |
| Yıllık Üyelik | $22.99 | per year |
| aina Kredisi - 1 adet | $0.99 | one-time |
| aina Kredisi - 3 adet | $0.99 | one-time |
| aina Kredisi - 10 adet | $0.99 | one-time |
| aina Kredisi - 5 adet | $0.99 | one-time |


## Frequently asked questions

### Is ODTU free?

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

### Is Aina free?

Aina is free to download, with in-app purchases available.

### Do ODTU or Aina have ads?

Aina shows ads; ODTU does not.

### Which is updated more often, ODTU or Aina?

ODTU ships an update every 9 days, and Aina every 10 days. Most recently, ODTU was updated on October 5, 2026 and Aina on October 9, 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.*