# CH vs Smart Document Summary AI

The clearest difference is in-app purchases: CH at none against Smart Document Summary AI's 2. Smart Document Summary AI's advantage is device support and iOS requirement (15.5 vs 18.5). On price there is nothing between them.

Both are free to download. Smart Document Summary AI sells 2 in-app purchases, starting at $2.99 per 7 days. CH asks for nothing beyond the download.

## The numbers

| Metric | CH | Smart Document Summary AI |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | — | No |
| Update frequency | — | Every 2 weeks |
| Size | 1 MB | 86 MB |
| Requires iOS | 18.5 | **15.5** |
| Devices | — | **iPhone, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Junichi Koike](https://appshunter.io/developer/1856133774) | [Dzianis Kuziomkin](https://appshunter.io/developer/1851060226) |

## What reviewers say

### CH

[App page](https://appshunter.io/ios/app/ch-ocr/id6756989372)

**In-app purchases:** none


### Smart Document Summary AI

[App page](https://appshunter.io/ios/app/smart-document-summary-ai/id6758106849)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Pro | $2.99 | per 7 days |
| Yearly Pro | $29.99 | per year |


## Frequently asked questions

### Is CH free?

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

### Is Smart Document Summary AI free?

Smart Document Summary AI is free to download, with in-app purchases available.

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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.*