# DSW21 vs RVK

The clearest difference is iOS requirement: DSW21 at 13.0 against RVK's 15.5. On price, update cadence, ads and in-app purchases there is nothing between them.

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

DSW21 ships an update every 4 months, RVK every 2 months. The most recent releases landed on August 29, 2026 and September 24, 2026 respectively.

## The numbers

| Metric | DSW21 | RVK |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 8.3% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 2 months** |
| Monetization | — | Free |
| Size | 174 MB | 58 MB |
| Requires iOS | **13.0** | 15.5 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Dortmunder Stadtwerke Aktiengesellschaft](https://appshunter.io/developer/1410660448) | [Kölner Verkehrs-Betriebe AG](https://appshunter.io/developer/885841815) |

## What reviewers say

### DSW21

[App page](https://appshunter.io/ios/app/dsw21-app/id654668189)

**Features:** macOS Compatibility

**In-app purchases:** none


### RVK

[App page](https://appshunter.io/ios/app/rvk-app/id1461784449)

This app provides public transport information, including schedules, live updates, and navigation for buses and trains in the Cologne region. It also offers booking for e-bikes and car-sharing services.

**Highlights:** Schedule information with live data, Live departure times, Favorite stops, Ticket purchasing, E-bike and car-sharing booking, Real-time traffic updates

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is DSW21 free?

DSW21 is free to download, with no in-app purchases.

### Is RVK free?

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

### Do DSW21 or RVK have ads?

Neither DSW21 nor RVK shows ads.

### Which is updated more often, DSW21 or RVK?

DSW21 ships an update every 4 months, and RVK every 2 months. Most recently, DSW21 was updated on August 29, 2026 and RVK on September 24, 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.*