# Handwriting Eraser & PDF Tool vs MathSatChallenge

The clearest difference is in-app purchases: MathSatChallenge at none against Handwriting Eraser & PDF Tool's 4. MathSatChallenge also leads on ads (none vs shown). Handwriting Eraser & PDF Tool's advantage is iOS requirement (13.0 vs 17.6). On price and device support there is nothing between them.

Both are free to download. Handwriting Eraser & PDF Tool sells 4 in-app purchases, starting at $2.99 per month. MathSatChallenge asks for nothing beyond the download.

## The numbers

| Metric | Handwriting Eraser & PDF Tool | MathSatChallenge |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 2 weeks | — |
| Monetization | Free with in-app purchases | — |
| Size | 47 MB | 8 MB |
| Requires iOS | **13.0** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 12+ |
| Developer | [Hubei Shuxin Information Technology Limited](https://appshunter.io/developer/1802618314) | [Amal Salman](https://appshunter.io/developer/1850302345) |

## What reviewers say

### Handwriting Eraser & PDF Tool

[App page](https://appshunter.io/ios/app/handwriting-eraser-and-pdf-tool/id6757347031)

Effortlessly remove handwritten notes from documents and print them for repeated practice. This tool helps students reinforce learning and improve performance through repetition, saving parents time and making exam preparation easier.

**Highlights:** Erase handwritten marks from exams and homework, Preserve original questions and layout, Convert between image and PDF, Print-ready output for practice, Save parents time, Boost student learning efficiency

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Plan - 50 points | $2.99 | per month |
| Annual Plan - 600 Points | $17.99 | per year |
| 30 Points | $2.99 | one-time |
| 180 Points | $8.99 | one-time |


### MathSatChallenge

[App page](https://appshunter.io/ios/app/mathsatchallenge/id6760304301)

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

**In-app purchases:** none


## Frequently asked questions

### Is Handwriting Eraser & PDF Tool free?

Handwriting Eraser & PDF Tool is free to download, with in-app purchases available.

### Is MathSatChallenge free?

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

### Do Handwriting Eraser & PDF Tool or MathSatChallenge have ads?

Handwriting Eraser & PDF Tool shows ads; MathSatChallenge does not.

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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.*