# Document Scanner By MadMath vs NexternAI

The clearest difference is update cadence: NexternAI at weekly against Document Scanner By MadMath's every 7 months. Document Scanner By MadMath's advantage is iOS requirement (13.0 vs 16.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Document Scanner By MadMath ships an update every 7 months, NexternAI weekly. The most recent releases landed on October 2, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | Document Scanner By MadMath | NexternAI |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 7 months | **Weekly** |
| Size | 5 MB | 10 MB |
| Requires iOS | **13.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Palanisamy Shanmugam](https://appshunter.io/developer/1597120898) | [Umar Muzaffar](https://appshunter.io/developer/1896628957) |

## What reviewers say

### Document Scanner By MadMath

[App page](https://appshunter.io/ios/app/document-scanner-by-madmath/id1599595423)

**Features:** macOS Compatibility

**In-app purchases:** none


### NexternAI

[App page](https://appshunter.io/ios/app/nexternai-mock-interview-prep/id6782328023)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Document Scanner By MadMath free?

Document Scanner By MadMath is free to download, with no in-app purchases.

### Is NexternAI free?

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

### Do Document Scanner By MadMath or NexternAI have ads?

Neither Document Scanner By MadMath nor NexternAI shows ads.

### Which is updated more often, Document Scanner By MadMath or NexternAI?

Document Scanner By MadMath ships an update every 7 months, and NexternAI weekly. Most recently, Document Scanner By MadMath was updated on October 2, 2026 and NexternAI on October 4, 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.*