# Document Scanner vs Enginamatic

The clearest difference is in-app purchases: Document Scanner at none against Enginamatic's 10. Document Scanner also leads on ads (none vs shown). Enginamatic's advantage is update cadence (every 2 days vs every 3 weeks) and device support (3 vs 1). On price and iOS requirement there is nothing between them.

Both are free to download. Enginamatic sells 10 in-app purchases, starting at $3.99 per month. Document Scanner asks for nothing beyond the download.

Document Scanner ships an update every 3 weeks, Enginamatic every 2 days. The most recent releases landed on October 14, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | Document Scanner | Enginamatic |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 3 weeks | **Every 2 days** |
| Size | 2 MB | 145 MB |
| Requires iOS | 17.6 | **17.0** |
| Devices | iPhone | **iPhone, iPad, Apple Watch** |
| Age rating | 4+ | 12+ |
| Developer | [Mustafa Calis](https://appshunter.io/developer/1779044245) | [EGEROBOT OTOMASYON MUHENDISLIK PROJE DANISMANLIK SANAYI VE TICARET LIMITED SIRKETI](https://appshunter.io/developer/6785977346) |

## What reviewers say

### Document Scanner

[App page](https://appshunter.io/ios/app/document-scanner-alg/id6738042632)

**In-app purchases:** none


### Enginamatic

[App page](https://appshunter.io/ios/app/enginamatic-mechanical-calc/id6806188820)

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Enginamatic Premium Monthly | $3.99 | per month |
| Enginamatic Premium 3 Months | $8.99 | per 3 months |
| Enginamatic Premium Yearly | $26.99 | per year |
| Buy us a coffee | $4.99 | one-time |
| Buy us a cake | $9.99 | one-time |
| Enginamatic Plus Lifetime | $19.99 | one-time |
| Buy us a meal | $19.99 | one-time |
| Enginamatic Gold Lifetime | $29.99 | one-time |
| Enginamatic Premium Lifetime | $49.99 | one-time |
| Treat us to a feast | $49.99 | one-time |


## Frequently asked questions

### Is Document Scanner free?

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

### Is Enginamatic free?

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

### Do Document Scanner or Enginamatic have ads?

Enginamatic shows ads; Document Scanner does not.

### Which is updated more often, Document Scanner or Enginamatic?

Document Scanner ships an update every 3 weeks, and Enginamatic every 2 days. Most recently, Document Scanner was updated on October 14, 2026 and Enginamatic on October 6, 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.*