# Flow Laws vs Numbers in Czech language

The clearest difference is in-app purchases: Flow Laws at none against Numbers in Czech language's 5. Flow Laws also leads on ads (none vs shown) and iOS requirement (9.0 vs 15.4). Numbers in Czech language's advantage is update cadence (fortnightly vs every 40 months). On price and device support there is nothing between them.

Both are free to download. Numbers in Czech language sells 5 in-app purchases, starting at $6.99 per month. Flow Laws asks for nothing beyond the download.

Flow Laws ships an update every 40 months, Numbers in Czech language fortnightly. The most recent releases landed on October 26, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | Flow Laws | Numbers in Czech language |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 40 months | **Fortnightly** |
| Size | 62 MB | 31 MB |
| Requires iOS | **9.0** | 15.4 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Natalia Shelyago](https://appshunter.io/developer/1618907003) | [Nelly Latypova](https://appshunter.io/developer/1150816403) |

## What reviewers say

### Flow Laws

[App page](https://appshunter.io/ios/app/flow-laws/id1469137986)

**Features:** macOS Compatibility

**In-app purchases:** none


### Numbers in Czech language

[App page](https://appshunter.io/ios/app/numbers-in-czech-language/id1507705616)

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Learn Languages Better Pro | $6.99 | per month |
| Learn Languages Better Pro | $7.49 | per month |
| Language Learning Course Pro | $8.49 | per 7 days |
| Pro Complete Language Course | $34.99 | per year |
| Remove advertising | $3.99 | one-time |


## Frequently asked questions

### Is Flow Laws free?

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

### Is Numbers in Czech language free?

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

### Do Flow Laws or Numbers in Czech language have ads?

Numbers in Czech language shows ads; Flow Laws does not.

### Which is updated more often, Flow Laws or Numbers in Czech language?

Flow Laws ships an update every 40 months, and Numbers in Czech language fortnightly. Most recently, Flow Laws was updated on October 26, 2026 and Numbers in Czech language on November 3, 2026.

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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.*