# Koala Decodable Readers vs AWS Solutions Architect Prep

The clearest difference is ads: AWS Solutions Architect Prep at none against Koala Decodable Readers's shown. AWS Solutions Architect Prep also leads on update cadence (every 11 days vs every 3 months) and iOS requirement (15.0 vs 17.6). On price, in-app purchases and device support 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 AWS Solutions Architect Prep sells 2 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

Koala Decodable Readers ships an update every 3 months, AWS Solutions Architect Prep every 11 days. The most recent releases landed on October 25, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | Koala Decodable Readers | AWS Solutions Architect Prep |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 3 months | **Every 11 days** |
| Size | 11 MB | 45 MB |
| Requires iOS | 17.6 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [MRCH CONSULTING PTY LTD](https://appshunter.io/developer/1213277168) | [EXAMCERT PTY LTD](https://appshunter.io/developer/1830664214) |

## 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 |


### AWS Solutions Architect Prep

[App page](https://appshunter.io/ios/app/aws-solutions-architect-prep/id6756201048)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 200 Mibbi Credits | $1.99 | one-time |
| Premium Unlock | $5.99 | one-time |


## Frequently asked questions

### Is Koala Decodable Readers free?

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

### Is AWS Solutions Architect Prep free?

AWS Solutions Architect Prep is free to download, with in-app purchases available.

### Do Koala Decodable Readers or AWS Solutions Architect Prep have ads?

Koala Decodable Readers shows ads; AWS Solutions Architect Prep does not.

### Which is updated more often, Koala Decodable Readers or AWS Solutions Architect Prep?

Koala Decodable Readers ships an update every 3 months, and AWS Solutions Architect Prep every 11 days. Most recently, Koala Decodable Readers was updated on October 25, 2026 and AWS Solutions Architect Prep on October 28, 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.*