# teach clk vs Flow

The clearest difference is update cadence: Flow at weekly against teach clk's every 36 months. Flow also leads on iOS requirement (15.1 vs 26.2). On price, ads, in-app purchases and device support there is nothing between them.

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

teach clk ships an update every 36 months, Flow weekly. The most recent releases landed on October 27, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | teach clk | Flow |
| --- | --- | --- |
| 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 | Every 36 months | **Weekly** |
| Monetization | — | Freemium |
| Size | 54 MB | 62 MB |
| Requires iOS | 26.2 | **15.1** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [mind Technology](https://appshunter.io/developer/505395264) | [Christian Hibberd](https://appshunter.io/developer/1726115062) |

## What reviewers say

### teach clk

[App page](https://appshunter.io/ios/app/teach-clk/id1524244498)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Teaching Clock IAP | $9.99 | one-time |


### 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 |


## Frequently asked questions

### Is teach clk free?

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

### Is Flow free?

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

### Do teach clk or Flow have ads?

Neither teach clk nor Flow shows ads.

### Which is updated more often, teach clk or Flow?

teach clk ships an update every 36 months, and Flow weekly. Most recently, teach clk was updated on October 27, 2026 and Flow on October 30, 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.*