# i vs ThinkBook

The clearest difference is iOS requirement: i at 9.0 against ThinkBook's 11.0. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | i | ThinkBook |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 weeks | — |
| Size | 76 MB | 52 MB |
| Requires iOS | **9.0** | 11.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [锦才 钟](https://appshunter.io/developer/1433440881) | [红兵 谭](https://appshunter.io/developer/1751405855) |

## What reviewers say

### i

[App page](https://appshunter.io/ios/app/i-encrypted-pro/id6444371466)

**In-app purchases:** none


### ThinkBook

[App page](https://appshunter.io/ios/app/thinkbook/id6504217637)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is i free?

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

### Is ThinkBook free?

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

### Do i or ThinkBook have ads?

Neither i nor ThinkBook 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.*