# Oz Phonics 3 vs Grass Fire

The clearest difference is price: Grass Fire at Free against Oz Phonics 3's $2.99. Grass Fire also leads on device support (3 vs 1) and ratings volume (3 vs 1). Oz Phonics 3's advantage is rating (3.0 vs 1.0). On update cadence, ads and in-app purchases there is nothing between them.

Grass Fire is free to download; Oz Phonics 3 costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Oz Phonics 3 holds the better App Store score, 3.0 against 1.0. Both are backed by a comparable volume of ratings — 1 and 3 respectively.

Oz Phonics 3 ships an update every 14 months, Grass Fire every 15 months. The most recent releases landed on October 3, 2026 and October 29, 2026 respectively.

## The numbers

| Metric | Oz Phonics 3 | Grass Fire |
| --- | --- | --- |
| Price | $2.99 | **Free** |
| Rating | **[3.0 (1 ratings)](https://appshunter.io/ios/app/oz-phonics-3-consonant-blends/id668467703/reviews)** | [1.0 (3 ratings)](https://appshunter.io/ios/app/grass-fire/id1440445499/reviews) |
| Number of ratings | 1 | **3** |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 14 months** | Every 15 months |
| Monetization | Paid | **Free** |
| Size | 74 MB | 66 MB |
| Requires iOS | 16.6 | **12.0** |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [DSP Learning Pty Ltd](https://appshunter.io/developer/556500951) | [arludo Pty Ltd](https://appshunter.io/developer/1023251086) |

## What reviewers say

### Oz Phonics 3

[App page](https://appshunter.io/ios/app/oz-phonics-3-consonant-blends/id668467703)

This app reinforces phonics skills with 12 interactive sections focusing on consonant blends and digraphs. It includes word games, spelling tests, and exercises designed to improve reading and spelling for young learners. Free accompanying worksheets are available online.

**Highlights:** 12 phonics reinforcement sections, Consonant blend and digraph introduction, Word finder game with sound-out feature, Spelling tests for CVC and CCVC words, Phoneme deletion exercises, Practice with 's' making /z/ sound, Covers digraphs like 'ch', 'sh', 'th'

**Features:** macOS Compatibility

**In-app purchases:** none


### Grass Fire

[App page](https://appshunter.io/ios/app/grass-fire/id1440445499)

This educational app explores how the human brain interprets visual shapes. It's designed to help users understand the cognitive processes behind shape recognition and perception.

**Highlights:** Understanding shape interpretation, Cognitive process exploration, Visual perception testing, Educational content

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Oz Phonics 3 free?

Oz Phonics 3 costs $2.99, with no in-app purchases.

### Is Grass Fire free?

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

### Which has better reviews, Oz Phonics 3 or Grass Fire?

Oz Phonics 3 is rated higher. Oz Phonics 3 averages 3.0 out of 5 from 1 ratings, while Grass Fire averages 1.0 from 3 ratings.

### Do Oz Phonics 3 or Grass Fire have ads?

Neither Oz Phonics 3 nor Grass Fire shows ads.

### Which is updated more often, Oz Phonics 3 or Grass Fire?

Oz Phonics 3 ships an update every 14 months, and Grass Fire every 15 months. Most recently, Oz Phonics 3 was updated on October 3, 2026 and Grass Fire on October 29, 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.*