# ODTU vs ActivityRoots

The clearest difference is in-app purchases: ODTU at none against ActivityRoots's 2. ODTU also leads on update cadence (every 9 days vs every 3 weeks) and iOS requirement (12.0 vs 17.0). On price, ads and device support there is nothing between them.

Both are free to download. ActivityRoots sells 2 in-app purchases, starting at $2.99 per month. ODTU asks for nothing beyond the download.

ODTU ships an update every 9 days, ActivityRoots every 3 weeks. The most recent releases landed on September 18, 2026 and September 19, 2026 respectively.

## The numbers

| Metric | ODTU | ActivityRoots |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 9 days** | Every 3 weeks |
| Size | 14 MB | 18 MB |
| Requires iOS | **12.0** | 17.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Orta Dogu Teknik Universitesi](https://appshunter.io/developer/1803144647) | [Cagatay EMEKCI](https://appshunter.io/developer/1889162934) |

## What reviewers say

### ODTU

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

**Features:** macOS Compatibility

**In-app purchases:** none


### ActivityRoots

[App page](https://appshunter.io/ios/app/activityroots/id6761369157)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1 Month Pro Plan | $2.99 | per month |
| 1 Year Pro Plan | $24.99 | per year |


## Frequently asked questions

### Is ODTU free?

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

### Is ActivityRoots free?

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

### Do ODTU or ActivityRoots have ads?

Neither ODTU nor ActivityRoots shows ads.

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

ODTU ships an update every 9 days, and ActivityRoots every 3 weeks. Most recently, ODTU was updated on September 18, 2026 and ActivityRoots on September 19, 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.*