# Koala Decodable Readers vs Atarly

The clearest difference is ads: Atarly at none against Koala Decodable Readers's shown. Atarly also leads on update cadence (weekly vs every 3 months). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. Koala Decodable Readers sells 1 in-app purchase, starting at $1.99 per 7 days and Atarly sells 2 in-app purchases, starting at $5.99 per month. Whichever you choose, the download price is not the number that matters.

Koala Decodable Readers ships an update every 3 months, Atarly weekly. The most recent releases landed on October 30, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Koala Decodable Readers | Atarly |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 3 months | **Weekly** |
| Size | 11 MB | 76 MB |
| Requires iOS | 17.6 | **16.4** |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 12+ |
| Developer | [MRCH CONSULTING PTY LTD](https://appshunter.io/developer/1213277168) | [Marcus Grech](https://appshunter.io/developer/6788921591) |

## What reviewers say

### Koala Decodable Readers

[App page](https://appshunter.io/ios/app/koala-decodable-readers/id6744292931)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Access | $1.99 | per 7 days |


### Atarly

[App page](https://appshunter.io/ios/app/atarly-vce-study-and-atar/id6788921589)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Locked in | $5.99 | per month |
| ATAR Maxing Premium Yearly | $39.99 | per year |


## Frequently asked questions

### Is Koala Decodable Readers free?

Koala Decodable Readers is free to download, with in-app purchases available.

### Is Atarly free?

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

### Do Koala Decodable Readers or Atarly have ads?

Koala Decodable Readers shows ads; Atarly does not.

### Which is updated more often, Koala Decodable Readers or Atarly?

Koala Decodable Readers ships an update every 3 months, and Atarly weekly. Most recently, Koala Decodable Readers was updated on October 30, 2026 and Atarly on October 31, 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.*