# IMP vs PDF Converter・Doc Scanner

The clearest difference is in-app purchases: IMP at none against PDF Converter・Doc Scanner's 4. IMP also leads on device support (3 vs 1) and iOS requirement (13.0 vs 18). PDF Converter・Doc Scanner's advantage is update cadence (every 2 months vs every 4 months). On price and ads there is nothing between them.

Both are free to download. PDF Converter・Doc Scanner sells 4 in-app purchases, starting at $6.99 per 7 days. IMP asks for nothing beyond the download.

IMP ships an update every 4 months, PDF Converter・Doc Scanner every 2 months. The most recent releases landed on September 9, 2026 and September 19, 2026 respectively.

## The numbers

| Metric | IMP | PDF Converter・Doc Scanner |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.3 (28 ratings)](https://appshunter.io/ios/app/pdf-converterdoc-scanner/id6670748953/reviews)** |
| Number of ratings | — | **28** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 2 months** |
| Monetization | — | Free with in-app purchases |
| Size | 47 MB | 83 MB |
| Requires iOS | **13.0** | 18 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 17+ | 4+ |
| Developer | [Digital Mobility Inc.](https://appshunter.io/developer/1682120087) | [Nikolai Ivanenko](https://appshunter.io/developer/1855826089) |

## What reviewers say

### IMP

[App page](https://appshunter.io/ios/app/imp-mps/id6447648093)

**Features:** macOS Compatibility

**In-app purchases:** none


### PDF Converter・Doc Scanner

[App page](https://appshunter.io/ios/app/pdf-converterdoc-scanner/id6670748953)

Easily scan physical documents and convert various file types, images, and web pages into professional PDF formats. Organize, edit, and share your important content quickly and efficiently.

**Highlights:** Smart document scanning, Create PDFs from various sources, Convert multiple file types, Edit PDFs before saving, Instant sharing options

**Features:** macOS Compatibility, Family Sharing

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Convert to PDF Docs & Pictures | $6.99 | per 7 days |
| Convert to PDF Docs & Pictures | $6.99 | per 7 days |
| Image & Photo to PDF・Converter | $19.99 | per month |
| Image & Photo to PDF・Converter | $39.99 | per year |


## Frequently asked questions

### Is IMP free?

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

### Is PDF Converter・Doc Scanner free?

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

### Do IMP or PDF Converter・Doc Scanner have ads?

Neither IMP nor PDF Converter・Doc Scanner shows ads.

### Which is updated more often, IMP or PDF Converter・Doc Scanner?

IMP ships an update every 4 months, and PDF Converter・Doc Scanner every 2 months. Most recently, IMP was updated on September 9, 2026 and PDF Converter・Doc Scanner on September 19, 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.*