# Scratch Math! vs 8 Days Pass AI

The clearest difference is update cadence: Scratch Math! at every 3 days against 8 Days Pass AI's fortnightly. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Scratch Math! sells 3 one-off in-app purchases and 8 Days Pass AI sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Scratch Math! ships an update every 3 days, 8 Days Pass AI fortnightly. The most recent releases landed on November 5, 2026 and November 13, 2026 respectively.

## The numbers

| Metric | Scratch Math! | 8 Days Pass AI |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (3 ratings)](https://appshunter.io/ios/app/scratch-math/id6763207187/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 3 days** | Fortnightly |
| Monetization | Free | — |
| Size | 29 MB | 315 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 12+ |
| Developer | [Mathias Bakken](https://appshunter.io/developer/1895214623) | [ChengYuan Chang](https://appshunter.io/developer/1162555076) |

## What reviewers say

### Scratch Math!

[App page](https://appshunter.io/ios/app/scratch-math/id6763207187)

This app provides interactive math practice with a digital scratchpad for solving problems. It offers visual fraction exploration and algebra activities to build understanding. Learn step-by-step with guided explanations and track your progress.

**Highlights:** Digital scratchpad for problem solving, Visual fraction exploration activities, Interactive algebra playground, Practice modes for arithmetic and decimals, Step-by-step guided explanations, Progress tracking and badges

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Buy Me a Coffee | $4.99 | one-time |
| Buy Me a Coffee | $14.99 | one-time |
| Buy Me a Coffee | $39.99 | one-time |


### 8 Days Pass AI

[App page](https://appshunter.io/ios/app/8-days-pass-ai-103/id6808637509)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| AI-103 Full Access | $19.99 | one-time |


## Frequently asked questions

### Is Scratch Math! free?

Scratch Math! is free to download, with in-app purchases available.

### Is 8 Days Pass AI free?

8 Days Pass AI is free to download, with in-app purchases available.

### Do Scratch Math! or 8 Days Pass AI have ads?

Neither Scratch Math! nor 8 Days Pass AI shows ads.

### Which is updated more often, Scratch Math! or 8 Days Pass AI?

Scratch Math! ships an update every 3 days, and 8 Days Pass AI fortnightly. Most recently, Scratch Math! was updated on November 5, 2026 and 8 Days Pass AI on November 13, 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.*