# Chalk & Math vs Oz Phonics 4

The clearest difference is price: Chalk & Math at Free against Oz Phonics 4's $2.99. Chalk & Math also leads on device support (3 vs 1). Oz Phonics 4's advantage is update cadence (every 27 months vs every 71 months). On ads, in-app purchases and iOS requirement there is nothing between them.

Chalk & Math 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.

Chalk & Math ships an update every 71 months, Oz Phonics 4 every 27 months. The most recent releases landed on October 25, 2026 and October 26, 2026 respectively.

## The numbers

| Metric | Chalk & Math | Oz Phonics 4 |
| --- | --- | --- |
| Price | **Free** | $2.99 |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/chalk-and-math/id974996755/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 71 months | **Every 27 months** |
| Monetization | Free | — |
| Size | 103 MB | 47 MB |
| Requires iOS | **15.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPad |
| Age rating | 4+ | 4+ |
| Developer | [Carlton Payne III](https://appshunter.io/developer/923853665) | [DSP Learning Pty Ltd](https://appshunter.io/developer/556500951) |

## What reviewers say

### Chalk & Math

[App page](https://appshunter.io/ios/app/chalk-and-math/id974996755)

This app helps children develop fundamental math abilities, covering addition, subtraction, multiplication, division, and geometry. It features 19 learning levels, from Pre-K to third grade, and includes a test mode with customizable question counts.

**Highlights:** Addition skills, Subtraction skills, Multiplication skills, Division skills, Geometry basics, 19 learning levels, Test mode

**Features:** macOS Compatibility

**In-app purchases:** none


### Oz Phonics 4

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

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Chalk & Math free?

Chalk & Math is free to download, with no in-app purchases.

### Is Oz Phonics 4 free?

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

### Do Chalk & Math or Oz Phonics 4 have ads?

Neither Chalk & Math nor Oz Phonics 4 shows ads.

### Which is updated more often, Chalk & Math or Oz Phonics 4?

Chalk & Math ships an update every 71 months, and Oz Phonics 4 every 27 months. Most recently, Chalk & Math was updated on October 25, 2026 and Oz Phonics 4 on October 26, 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.*