# RUB mobile vs A1

The clearest difference is update cadence: RUB mobile at every 6 months against A1's every 24 months. RUB mobile also leads on review sentiment (80% vs 68%). A1's advantage is iOS requirement (12.1 vs 15.0). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

RUB mobile ships an update every 6 months, A1 every 24 months. The most recent releases landed on October 23, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | RUB mobile | A1 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.3 (24 ratings)](https://appshunter.io/ios/app/a1-deutsch/id1465253269/reviews)** |
| Number of ratings | — | **24** |
| Positive reviews | **80.0% of reviews** | 68.3% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 6 months** | Every 24 months |
| Monetization | Free | Free |
| Size | 23 MB | 31 MB |
| Requires iOS | 15.0 | **12.1** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Ruhr-Universitaet Bochum](https://appshunter.io/developer/476630475) | [Deutscher Volkshochschul-Verband e.V.](https://appshunter.io/developer/796434153) |

## What reviewers say

### RUB mobile

[App page](https://appshunter.io/ios/app/rub-mobile/id476630472)

This app provides essential information and services for students and prospective students of Ruhr University Bochum. Access your student ID, campus news, dining hall menus, and the university library catalog.

**Highlights:** Student ID access, Latest news updates, Social media integration, Dining hall menus, Course directory, University library catalog

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

**In-app purchases:** none


### A1

[App page](https://appshunter.io/ios/app/a1-deutsch/id1465253269)

Learn German for free at the A1 level with this mobile application. It offers 12 lessons, vocabulary trainers, and practice for all language skills. The app can be used offline and is recognized as a teaching aid.

**Highlights:** 12 German lessons, Vocabulary and phrase trainer, Reading, writing, listening, speaking practice, Offline functionality, Menu navigation in 20 languages, Recognized teaching aid

**In-app purchases:** none


## Frequently asked questions

### Is RUB mobile free?

RUB mobile is free to download, with no in-app purchases.

### Is A1 free?

A1 is free to download, with no in-app purchases.

### Do RUB mobile or A1 have ads?

Neither RUB mobile nor A1 shows ads.

### Which is updated more often, RUB mobile or A1?

RUB mobile ships an update every 6 months, and A1 every 24 months. Most recently, RUB mobile was updated on October 23, 2026 and A1 on October 25, 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.*