# App4SHM vs PDF. Scanner.

The clearest difference is in-app purchases: App4SHM at none against PDF. Scanner.'s 3. App4SHM also leads on iOS requirement (13.0 vs 16.4). PDF. Scanner.'s advantage is update cadence (every 3 weeks vs every 4 months). On price, ads and device support there is nothing between them.

Both are free to download. PDF. Scanner. sells 3 one-off in-app purchases. App4SHM asks for nothing beyond the download.

App4SHM ships an update every 4 months, PDF. Scanner. every 3 weeks. The most recent releases landed on October 14, 2026 and October 20, 2026 respectively.

## The numbers

| Metric | App4SHM | PDF. Scanner. |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 3 weeks** |
| Size | 27 MB | 22 MB |
| Requires iOS | **13.0** | 16.4 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 17+ |
| Developer | [COFAC](https://appshunter.io/developer/962813435) | [Juergen Koller Software GmbH](https://appshunter.io/developer/1604001664) |

## What reviewers say

### App4SHM

[App page](https://appshunter.io/ios/app/app4shm/id6453887192)

**In-app purchases:** none


### PDF. Scanner.

[App page](https://appshunter.io/ios/app/pdf-scanner/id6472706694)

**Features:** Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 50 AI Names | $1.99 | one-time |
| 200 AI Names | $4.99 | one-time |
| 500 AI Names | $8.99 | one-time |


## Frequently asked questions

### Is App4SHM free?

App4SHM is free to download, with no in-app purchases.

### Is PDF. Scanner. free?

PDF. Scanner. is free to download, with in-app purchases available.

### Do App4SHM or PDF. Scanner. have ads?

Neither App4SHM nor PDF. Scanner. shows ads.

### Which is updated more often, App4SHM or PDF. Scanner.?

App4SHM ships an update every 4 months, and PDF. Scanner. every 3 weeks. Most recently, App4SHM was updated on October 14, 2026 and PDF. Scanner. on October 20, 2026.

---

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