# Flow vs Testklar

Flow and Testklar are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. Flow sells 2 in-app purchases, starting at $5.99 per month and Testklar sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

## The numbers

| Metric | Flow | Testklar |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.0 (1 ratings)](https://appshunter.io/ios/app/flow-language-lessons/id6498631478/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 66.7% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Weekly | — |
| Monetization | Freemium | — |
| Size | 62 MB | 31 MB |
| Requires iOS | 15.1 | **15.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Christian Hibberd](https://appshunter.io/developer/1726115062) | [Sevim Yilanli](https://appshunter.io/developer/6789318199) |

## What reviewers say

### Flow

[App page](https://appshunter.io/ios/app/flow-language-lessons/id6498631478)

This app offers a personalized language learning experience for intermediate to advanced learners. It uses real-world content like TV shows and podcasts to create engaging lessons tailored to your interests and skill level, helping you achieve fluency faster.

**Highlights:** Personalized learning paths, Real-world content integration, Adaptive to skill level, Progress tracking, Focus on fluency, Interest-based learning

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Plan | $5.99 | per month |
| Yearly Plan | $59.99 | per year |


### Testklar

[App page](https://appshunter.io/ios/app/testklar-citizenship-test/id6816204988)

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Full Version | $8.99 | one-time |


## Frequently asked questions

### Is Flow free?

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

### Is Testklar free?

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

### Do Flow or Testklar have ads?

Neither Flow nor Testklar 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.*