# Koala Decodable Readers vs NAPLAN OC Selective Exam Hub

The clearest difference is ads: NAPLAN OC Selective Exam Hub at none against Koala Decodable Readers's shown. NAPLAN OC Selective Exam Hub also leads on update cadence (every 2 weeks 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 NAPLAN OC Selective Exam Hub sells 3 in-app purchases, starting at $3.99 per 7 days. Whichever you choose, the download price is not the number that matters.

Koala Decodable Readers ships an update every 3 months, NAPLAN OC Selective Exam Hub every 2 weeks. Both last shipped on November 8, 2026.

## The numbers

| Metric | Koala Decodable Readers | NAPLAN OC Selective Exam Hub |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 3 months | **Every 2 weeks** |
| Monetization | — | Free with in-app purchases |
| Size | 11 MB | 43 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) | [The Anh](https://appshunter.io/developer/1067835130) |

## 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 |


### NAPLAN OC Selective Exam Hub

[App page](https://appshunter.io/ios/app/naplan-oc-selective-exam-hub/id6746640734)

Prepare for Australian NAPLAN, OC, and Selective School entrance exams with over 10,000 practice questions and 500+ full-length tests. Get instant scoring, detailed explanations, and track progress to build confidence and achieve academic goals.

**Highlights:** 10,000+ exam-style questions, 500+ practice tests, NAPLAN, OC, Selective School prep, Simulated exam conditions, Instant scoring and explanations, Progress tracking

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Weekly | $3.99 | per 7 days |
| Premium Monthly | $9.99 | per month |
| Premium Yearly | $59.99 | per year |


## Frequently asked questions

### Is Koala Decodable Readers free?

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

### Is NAPLAN OC Selective Exam Hub free?

NAPLAN OC Selective Exam Hub is free to download, with in-app purchases available.

### Do Koala Decodable Readers or NAPLAN OC Selective Exam Hub have ads?

Koala Decodable Readers shows ads; NAPLAN OC Selective Exam Hub does not.

### Which is updated more often, Koala Decodable Readers or NAPLAN OC Selective Exam Hub?

Koala Decodable Readers ships an update every 3 months, and NAPLAN OC Selective Exam Hub every 2 weeks. Most recently, Koala Decodable Readers was updated on November 8, 2026 and NAPLAN OC Selective Exam Hub on November 8, 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.*