# PLAN4 vs PDF Scan

The clearest difference is in-app purchases: PLAN4 at none against PDF Scan's 3. PLAN4 also leads on device support (3 vs 1) and iOS requirement (15.5 vs 18.0). PDF Scan's advantage is update cadence (monthly vs every 3 months). On price and ads there is nothing between them.

Both are free to download. PDF Scan sells 3 in-app purchases, starting at $5.99 per 7 days. PLAN4 asks for nothing beyond the download.

PLAN4 ships an update every 3 months, PDF Scan monthly. The most recent releases landed on November 3, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | PLAN4 | PDF Scan |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Monthly** |
| Size | 20 MB | 6 MB |
| Requires iOS | **15.5** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [PLAN4 Software GmbH](https://appshunter.io/developer/1548262679) | [Phuc Pham](https://appshunter.io/developer/1893081423) |

## What reviewers say

### PLAN4

[App page](https://appshunter.io/ios/app/plan4-gebaudecheck/id1485242041)

**Features:** Vision Pro support

**In-app purchases:** none


### PDF Scan

[App page](https://appshunter.io/ios/app/pdf-scan-sign-ocr-and-merge/id6767791109)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Premium | $5.99 | per 7 days |
| Annual Premium | $29.99 | per year |
| Lifetime Premium | $59.99 | one-time |


## Frequently asked questions

### Is PLAN4 free?

PLAN4 is free to download, with no in-app purchases.

### Is PDF Scan free?

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

### Do PLAN4 or PDF Scan have ads?

Neither PLAN4 nor PDF Scan shows ads.

### Which is updated more often, PLAN4 or PDF Scan?

PLAN4 ships an update every 3 months, and PDF Scan monthly. Most recently, PLAN4 was updated on November 3, 2026 and PDF Scan on October 25, 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.*