# Oz Phonics 4 vs Reading Critters

The clearest difference is price: Reading Critters at Free against Oz Phonics 4's $2.99. Reading Critters also leads on update cadence (every 2 weeks vs every 27 months). Oz Phonics 4's advantage is ads (none vs shown). On in-app purchases, device support and iOS requirement there is nothing between them.

Reading Critters is free to download; Oz Phonics 4 costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Oz Phonics 4 ships an update every 27 months, Reading Critters every 2 weeks. The most recent releases landed on October 26, 2026 and September 9, 2026 respectively.

## The numbers

| Metric | Oz Phonics 4 | Reading Critters |
| --- | --- | --- |
| Price | $2.99 | **Free** |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/reading-critters/id6502915924/reviews)** |
| Number of ratings | — | **2** |
| Positive reviews | — | 25.0% of reviews |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 27 months | **Every 2 weeks** |
| Monetization | — | Ad-supported |
| Size | 47 MB | 33 MB |
| Requires iOS | **16.0** | 17.0 |
| Devices | iPad | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [DSP Learning Pty Ltd](https://appshunter.io/developer/556500951) | [GT School, Inc.](https://appshunter.io/developer/1684520888) |

## What reviewers say

### Oz Phonics 4

[App page](https://appshunter.io/ios/app/oz-phonics-4/id1063170939)

**Features:** macOS Compatibility

**In-app purchases:** none


### Reading Critters

[App page](https://appshunter.io/ios/app/reading-critters/id6502915924)

This app uses AI and direct instruction to teach children ages 4-8 to read. It offers personalized, engaging lessons with fun characters in a safe, pressure-free environment. Children improve reading skills by freeing trapped creatures from villains.

**Highlights:** AI-driven personalized lessons, Direct Instruction methods, Engaging animal characters, Safe learning environment, Adaptive lessons, Interactive animations, Immediate feedback

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Oz Phonics 4 free?

Oz Phonics 4 costs $2.99, with no in-app purchases.

### Is Reading Critters free?

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

### Do Oz Phonics 4 or Reading Critters have ads?

Reading Critters shows ads; Oz Phonics 4 does not.

### Which is updated more often, Oz Phonics 4 or Reading Critters?

Oz Phonics 4 ships an update every 27 months, and Reading Critters every 2 weeks. Most recently, Oz Phonics 4 was updated on October 26, 2026 and Reading Critters on September 9, 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.*