# Lettore QR vs Document Scanner By MadMath

The clearest difference is update cadence: Document Scanner By MadMath at every 7 months against Lettore QR's every 66 months. Document Scanner By MadMath also leads on iOS requirement (13.0 vs 17.0). 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.

Lettore QR ships an update every 66 months, Document Scanner By MadMath every 7 months. The most recent releases landed on October 19, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Lettore QR | Document Scanner By MadMath |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 66 months | **Every 7 months** |
| Size | 2 MB | 5 MB |
| Requires iOS | 17.0 | **13.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Michele Bazzoli](https://appshunter.io/developer/1061115088) | [Palanisamy Shanmugam](https://appshunter.io/developer/1597120898) |

## What reviewers say

### Lettore QR

[App page](https://appshunter.io/ios/app/lettore-qr/id1061406872)

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

**In-app purchases:** none


### Document Scanner By MadMath

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

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Lettore QR free?

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

### Is Document Scanner By MadMath free?

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

### Do Lettore QR or Document Scanner By MadMath have ads?

Neither Lettore QR nor Document Scanner By MadMath shows ads.

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

Lettore QR ships an update every 66 months, and Document Scanner By MadMath every 7 months. Most recently, Lettore QR was updated on October 19, 2026 and Document Scanner By MadMath on October 25, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*