# RetroStack vs DocumentAI

The clearest difference is in-app purchases: RetroStack at none against DocumentAI's 2. RetroStack also leads on device support (3 vs 1) and iOS requirement (15.6 vs 26.0). On price and ads there is nothing between them.

Both are free to download. DocumentAI sells 2 in-app purchases, starting at $5.99 per month. RetroStack asks for nothing beyond the download.

## The numbers

| Metric | RetroStack | DocumentAI |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | — | Every 10 days |
| Size | 55 MB | 10 MB |
| Requires iOS | **15.6** | 26.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Clifton Hatfield](https://appshunter.io/developer/1613799509) | [Eduardo Riboli](https://appshunter.io/developer/1700742553) |

## What reviewers say

### RetroStack

[App page](https://appshunter.io/ios/app/retrostack/id6746953618)

**Features:** macOS Compatibility

**In-app purchases:** none


### DocumentAI

[App page](https://appshunter.io/ios/app/documentai-scan-documents/id6771475078)

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| DocumentAI Pro Monthly | $5.99 | per month |
| DocumentAI Pro Yearly | $49.99 | per year |


## Frequently asked questions

### Is RetroStack free?

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

### Is DocumentAI free?

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

### Do RetroStack or DocumentAI have ads?

Neither RetroStack nor DocumentAI shows ads.

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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.*