# ABC vs KooTreeni

The clearest difference is price: KooTreeni at Free against ABC's $1.99. ABC's advantage is iOS requirement (9.0 vs 13.0). On update cadence, ads, in-app purchases and device support there is nothing between them.

KooTreeni is free to download; ABC costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ABC ships an update every 5 weeks, KooTreeni every 2 months. The most recent releases landed on October 5, 2026 and September 30, 2026 respectively.

## The numbers

| Metric | ABC | KooTreeni |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 5 weeks** | Every 2 months |
| Size | 466 MB | 166 MB |
| Requires iOS | **9.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [aMASE AB](https://appshunter.io/developer/958270984) | [ArraTreeni Oy](https://appshunter.io/developer/1345435068) |

## What reviewers say

### ABC

[App page](https://appshunter.io/ios/app/abc-learn-to-read/id784199235)

**Features:** macOS Compatibility

**In-app purchases:** none


### KooTreeni

[App page](https://appshunter.io/ios/app/kootreeni/id1541385532)

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

**In-app purchases:** none


## Frequently asked questions

### Is ABC free?

ABC costs $1.99, with no in-app purchases.

### Is KooTreeni free?

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

### Do ABC or KooTreeni have ads?

Neither ABC nor KooTreeni shows ads.

### Which is updated more often, ABC or KooTreeni?

ABC ships an update every 5 weeks, and KooTreeni every 2 months. Most recently, ABC was updated on October 5, 2026 and KooTreeni on September 30, 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.*