# OffBook Kit vs Tacit AAC

The clearest difference is iOS requirement: OffBook Kit at 16.0 against Tacit AAC's 18.0. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. OffBook Kit sells 2 in-app purchases, starting at $7.99 per month and Tacit AAC sells 2 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

## The numbers

| Metric | OffBook Kit | Tacit AAC |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 6 weeks | — |
| Size | 82 MB | 18 MB |
| Requires iOS | **16.0** | 18.0 |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Jungwoo Chae](https://appshunter.io/developer/1896510671) | [Sakib Shaikh](https://appshunter.io/developer/1838917043) |

## What reviewers say

### OffBook Kit

[App page](https://appshunter.io/ios/app/offbook-kit/id6770186914)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Subscription | $7.99 | per month |
| Yearly Subscription | $59.99 | per year |


### Tacit AAC

[App page](https://appshunter.io/ios/app/tacit-aac/id6807525839)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Tacit Pro Monthly | $4.99 | per month |
| Tacit Pro Yearly | $29.99 | per year |


## Frequently asked questions

### Is OffBook Kit free?

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

### Is Tacit AAC free?

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

### Do OffBook Kit or Tacit AAC have ads?

Neither OffBook Kit nor Tacit AAC 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.*