# MathZoo Junior vs SmartPaper.ai

The clearest difference is device support: SmartPaper.ai at 3 against MathZoo Junior's 1. SmartPaper.ai also leads on iOS requirement (15.1 vs 18.1). On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. MathZoo Junior sells 1 one-off in-app purchase and SmartPaper.ai sells 2 in-app purchases, starting at $3.99 per month. Whichever you choose, the download price is not the number that matters.

MathZoo Junior ships an update weekly, SmartPaper.ai every 10 days. The most recent releases landed on October 7, 2026 and October 19, 2026 respectively.

## The numbers

| Metric | MathZoo Junior | SmartPaper.ai |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Weekly** | Every 10 days |
| Size | 8 MB | 41 MB |
| Requires iOS | 18.1 | **15.1** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Fusion Atelier B.V.](https://appshunter.io/developer/1864400421) | [Sagar Jilka](https://appshunter.io/developer/1889178784) |

## What reviewers say

### MathZoo Junior

[App page](https://appshunter.io/ios/app/mathzoo-junior/id6757204107)

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| MathZoo Expert - Lifetime Access | $3.99 | one-time |


### SmartPaper.ai

[App page](https://appshunter.io/ios/app/smartpaperai/id6761371880)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| SmartPaperMonthly | $3.99 | per month |
| SmartPaperAnnual | $39.99 | per year |


## Frequently asked questions

### Is MathZoo Junior free?

MathZoo Junior is free to download, with in-app purchases available.

### Is SmartPaper.ai free?

SmartPaper.ai is free to download, with in-app purchases available.

### Do MathZoo Junior or SmartPaper.ai have ads?

Neither MathZoo Junior nor SmartPaper.ai shows ads.

### Which is updated more often, MathZoo Junior or SmartPaper.ai?

MathZoo Junior ships an update weekly, and SmartPaper.ai every 10 days. Most recently, MathZoo Junior was updated on October 7, 2026 and SmartPaper.ai on October 19, 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.*