# IMPULS Cottbus vs Read4G

The clearest difference is in-app purchases: IMPULS Cottbus at none against Read4G's 2. IMPULS Cottbus also leads on device support (3 vs 1) and iOS requirement (11.0 vs 17.0). Read4G's advantage is update cadence (every 2 weeks vs every 30 months). On price and ads there is nothing between them.

Both are free to download. Read4G sells 2 in-app purchases, starting at $9.99 per month. IMPULS Cottbus asks for nothing beyond the download.

IMPULS Cottbus ships an update every 30 months, Read4G every 2 weeks. The most recent releases landed on November 7, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | IMPULS Cottbus | Read4G |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 30 months | **Every 2 weeks** |
| Size | 40 MB | 11 MB |
| Requires iOS | **11.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [MAE Systems GmbH](https://appshunter.io/developer/1192351200) | [Lucrecia Karina Abasto](https://appshunter.io/developer/6774181481) |

## What reviewers say

### IMPULS Cottbus

[App page](https://appshunter.io/ios/app/impuls-cottbus/id1625671414)

**Features:** macOS Compatibility

**In-app purchases:** none


### Read4G

[App page](https://appshunter.io/ios/app/read4g-learn-german/id6774181479)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Monthly | $9.99 | per month |
| Pro Annual | $69.99 | per year |


## Frequently asked questions

### Is IMPULS Cottbus free?

IMPULS Cottbus is free to download, with no in-app purchases.

### Is Read4G free?

Read4G is free to download, with in-app purchases available.

### Do IMPULS Cottbus or Read4G have ads?

Neither IMPULS Cottbus nor Read4G shows ads.

### Which is updated more often, IMPULS Cottbus or Read4G?

IMPULS Cottbus ships an update every 30 months, and Read4G every 2 weeks. Most recently, IMPULS Cottbus was updated on November 7, 2026 and Read4G on November 5, 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.*