# twiinvoice vs Scanem

The clearest difference is update cadence: Scanem at every 5 weeks against twiinvoice's every 7 months. twiinvoice's advantage is iOS requirement (12.0 vs 26.0). 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.

twiinvoice ships an update every 7 months, Scanem every 5 weeks. The most recent releases landed on October 3, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | twiinvoice | Scanem |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (31 ratings)](https://appshunter.io/ios/app/scanem-pdf-document-scanner/id6756688662/reviews)** |
| Number of ratings | — | **31** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 7 months | **Every 5 weeks** |
| Monetization | — | Free |
| Size | 62 MB | 6 MB |
| Requires iOS | **12.0** | 26.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [TECHNOLOGY WITHIN LIMITED](https://appshunter.io/developer/1570475392) | [Labi, LLC](https://appshunter.io/developer/455469767) |

## What reviewers say

### twiinvoice

[App page](https://appshunter.io/ios/app/twiinvoice/id1570475390)

**In-app purchases:** none


### Scanem

[App page](https://appshunter.io/ios/app/scanem-pdf-document-scanner/id6756688662)

Easily scan documents using your phone's camera and enhance their quality. This app allows you to customize, compress, sign, and secure your PDFs without watermarks or paywalls. Share your documents instantly in a private and efficient manner.

**Highlights:** Scan documents with camera, Enhance quality and readability, Compress PDF file size, Sign and markup PDFs, Lock PDFs with password, One-tap sharing, 100% private, on-device storage

**In-app purchases:** none


## Frequently asked questions

### Is twiinvoice free?

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

### Is Scanem free?

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

### Do twiinvoice or Scanem have ads?

Neither twiinvoice nor Scanem shows ads.

### Which is updated more often, twiinvoice or Scanem?

twiinvoice ships an update every 7 months, and Scanem every 5 weeks. Most recently, twiinvoice was updated on October 3, 2026 and Scanem on October 24, 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.*