# Boolean Builder by ChatStick vs Learn Czech

The clearest difference is ads: Learn Czech at none against Boolean Builder by ChatStick's shown. Learn Czech also leads on iOS requirement (16.0 vs 26.2). On price, in-app purchases and device support there is nothing between them.

Both are free to download. Boolean Builder by ChatStick sells 1 one-off in-app purchase and Learn Czech sells 6 in-app purchases, starting at $3.99 per 7 days. Whichever you choose, the download price is not the number that matters.

## The numbers

| Metric | Boolean Builder by ChatStick | Learn Czech |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | — | Every 3 months |
| Size | 11 MB | 104 MB |
| Requires iOS | 26.2 | **16.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [ChatStick Company Limited](https://appshunter.io/developer/1165816085) | [Dinh Thang Tran](https://appshunter.io/developer/1769927807) |

## What reviewers say

### Boolean Builder by ChatStick

[App page](https://appshunter.io/ios/app/boolean-builder-by-chatstick/id6764350982)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Boolean Builder Premium | $1.99 | one-time |


### Learn Czech

[App page](https://appshunter.io/ios/app/learn-czech-lingfast/id6770300266)

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

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| LingFast Premium Weekly | $3.99 | per 7 days |
| LingFast Premium Monthly | $8.99 | per month |
| LingFast Premium 3 Months | $19.99 | per 3 months |
| LingFast Premium 6 Months | $32.99 | per 6 months |
| LingFast Premium Yearly | $49.99 | per year |
| LingFast Premium Lifetime | $249.99 | one-time |


## Frequently asked questions

### Is Boolean Builder by ChatStick free?

Boolean Builder by ChatStick is free to download, with in-app purchases available.

### Is Learn Czech free?

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

### Do Boolean Builder by ChatStick or Learn Czech have ads?

Boolean Builder by ChatStick shows ads; Learn Czech does not.

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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.*