# Back to This vs PDF Scanner

The clearest difference is update cadence: PDF Scanner at every 4 days against Back to This's every 3 weeks. PDF Scanner also leads on device support (3 vs 1) and iOS requirement (15.5 vs 18.6). On price, ads and in-app purchases there is nothing between them.

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

Back to This ships an update every 3 weeks, PDF Scanner every 4 days. The most recent releases landed on September 9, 2026 and September 23, 2026 respectively.

## The numbers

| Metric | Back to This | PDF Scanner |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (9 ratings)](https://appshunter.io/ios/app/pdf-scanner-scany/id6795656749/reviews)** |
| Number of ratings | — | **9** |
| Positive reviews | — | 75.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 4 days** |
| Monetization | — | Free |
| Size | 6 MB | 28 MB |
| Requires iOS | 18.6 | **15.5** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Quanite FZE](https://appshunter.io/developer/1845665838) | [Josip Valcic](https://appshunter.io/developer/1626990788) |

## What reviewers say

### Back to This

[App page](https://appshunter.io/ios/app/back-to-this/id6772779325)

**In-app purchases:** none


### PDF Scanner

[App page](https://appshunter.io/ios/app/pdf-scanner-scany/id6795656749)

Effortlessly transform documents, receipts, and photos into high-quality PDFs. This free scanner app offers automatic cropping, perspective correction, and enhancement modes for clean, shareable files. Organize your scans with folders and tags for easy retrieval.

**Highlights:** Scan documents, receipts, and photos, Automatic cropping and perspective correction, Enhancement modes for clarity, Create multi-page PDFs, Organize scans with folders and tags, Export and share PDF files

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

**In-app purchases:** none


## Frequently asked questions

### Is Back to This free?

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

### Is PDF Scanner free?

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

### Do Back to This or PDF Scanner have ads?

Neither Back to This nor PDF Scanner shows ads.

### Which is updated more often, Back to This or PDF Scanner?

Back to This ships an update every 3 weeks, and PDF Scanner every 4 days. Most recently, Back to This was updated on September 9, 2026 and PDF Scanner on September 23, 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.*