# Oz Phonics 1 vs Grass Fire

The clearest difference is price: Grass Fire at Free against Oz Phonics 1's $2.99. Grass Fire also leads on device support (3 vs 1) and ratings volume (3 vs 1). Oz Phonics 1's advantage is rating (4.0 vs 1.0). On update cadence, ads and in-app purchases there is nothing between them.

Grass Fire is free to download; Oz Phonics 1 costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Oz Phonics 1 holds the better App Store score, 4.0 against 1.0. Both are backed by a comparable volume of ratings — 1 and 3 respectively.

Oz Phonics 1 ships an update every 11 months, Grass Fire every 15 months. The most recent releases landed on October 23, 2026 and October 21, 2026 respectively.

## The numbers

| Metric | Oz Phonics 1 | Grass Fire |
| --- | --- | --- |
| Price | $2.99 | **Free** |
| Rating | **[4.0 (1 ratings)](https://appshunter.io/ios/app/oz-phonics-1/id580335894/reviews)** | [1.0 (3 ratings)](https://appshunter.io/ios/app/grass-fire/id1440445499/reviews) |
| Number of ratings | 1 | **3** |
| Positive reviews | 71.4% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 11 months** | Every 15 months |
| Monetization | Paid | **Free** |
| Size | 65 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 1

[App page](https://appshunter.io/ios/app/oz-phonics-1/id580335894)

This app focuses on phonemic awareness and letter/sound knowledge for early readers. It offers 10 interactive exercises and sound reference screens to help children differentiate sounds, match them to letters, and build foundational spelling and reading skills. It aligns with US Common Core State Standards for kindergarten.

**Highlights:** Phonemic awareness exercises, Letter-sound matching, Sound differentiation games, Beginning and ending sound identification, Rhyme recognition, Sound reference screens

**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 1 free?

Oz Phonics 1 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 1 or Grass Fire?

Oz Phonics 1 is rated higher. Oz Phonics 1 averages 4.0 out of 5 from 1 ratings, while Grass Fire averages 1.0 from 3 ratings.

### Do Oz Phonics 1 or Grass Fire have ads?

Neither Oz Phonics 1 nor Grass Fire shows ads.

### Which is updated more often, Oz Phonics 1 or Grass Fire?

Oz Phonics 1 ships an update every 11 months, and Grass Fire every 15 months. Most recently, Oz Phonics 1 was updated on October 23, 2026 and Grass Fire on October 21, 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.*