# Arithmatrix vs ACT Prep

The clearest difference is in-app purchases: Arithmatrix at none against ACT Prep's 10. Arithmatrix also leads on update cadence (monthly vs every 7 months) and iOS requirement (11.0 vs 15.1). On price, ads and device support there is nothing between them.

Both are free to download. ACT Prep sells 10 in-app purchases, starting at $4.99 per 7 days. Arithmatrix asks for nothing beyond the download.

Arithmatrix ships an update monthly, ACT Prep every 7 months. The most recent releases landed on September 11, 2026 and May 16, 2026 respectively.

## The numbers

| Metric | Arithmatrix | ACT Prep |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Monthly** | Every 7 months |
| Size | 57 MB | 53 MB |
| Requires iOS | **11.0** | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Ezana Dawit](https://appshunter.io/developer/1665718578) | [Snap Prep OU](https://appshunter.io/developer/1711932790) |

## What reviewers say

### Arithmatrix

[App page](https://appshunter.io/ios/app/arithmatrix-brain-training/id1665718576)

**Features:** macOS Compatibility

**In-app purchases:** none


### ACT Prep

[App page](https://appshunter.io/ios/app/act-prep-practice-test-2026/id6523427865)

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ACT Prep Weekly Full Access | $4.99 | per 7 days |
| ACT Weekly Full Access | $14.99 | per month |
| ACT Prep Monthly Full Access | $14.99 | per month |
| ACT Exam Monthly Full Access | $34.99 | per month |
| ACT Exam Quarterly Full Access | $55.99 | per 3 months |
| ACT Exam Quarterly Full Access | $59.99 | per 3 months |
| ACT Exam Semiannual Access | $75.99 | per 6 months |
| ACT Exam Semiannual Access | $79.99 | per 6 months |
| ACT Exam Annual Full Access | $109.99 | per year |
| ACT Exam Annual Full Access | $119.99 | per year |


## Frequently asked questions

### Is Arithmatrix free?

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

### Is ACT Prep free?

ACT Prep is free to download, with in-app purchases available.

### Do Arithmatrix or ACT Prep have ads?

Neither Arithmatrix nor ACT Prep shows ads.

### Which is updated more often, Arithmatrix or ACT Prep?

Arithmatrix ships an update monthly, and ACT Prep every 7 months. Most recently, Arithmatrix was updated on September 11, 2026 and ACT Prep on May 16, 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.*