# BackSTage Staatstheater KA vs ZAL App ROGER

BackSTage Staatstheater KA and ZAL App ROGER are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.

Both ship on a similar rhythm, roughly fortnightly. The most recent releases landed on August 29, 2026 and September 25, 2026 respectively.

## The numbers

| Metric | BackSTage Staatstheater KA | ZAL App ROGER |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Fortnightly | Fortnightly |
| Size | 72 MB | 83 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Badisches Staatstheater Karlsruhe](https://appshunter.io/developer/1695886240) | [ZAL Zentrum für Angewandte Luftfahrtforschung GmbH](https://appshunter.io/developer/1896331585) |

## What reviewers say

### BackSTage Staatstheater KA

[App page](https://appshunter.io/ios/app/backstage-staatstheater-ka/id6504333384)

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

**In-app purchases:** none


### ZAL App ROGER

[App page](https://appshunter.io/ios/app/zal-app-roger/id6766856464)

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

**In-app purchases:** none


## Frequently asked questions

### Is BackSTage Staatstheater KA free?

BackSTage Staatstheater KA is free to download, with no in-app purchases.

### Is ZAL App ROGER free?

ZAL App ROGER is free to download, with no in-app purchases.

### Do BackSTage Staatstheater KA or ZAL App ROGER have ads?

Neither BackSTage Staatstheater KA nor ZAL App ROGER shows ads.

### Which is updated more often, BackSTage Staatstheater KA or ZAL App ROGER?

BackSTage Staatstheater KA ships an update fortnightly, and ZAL App ROGER fortnightly. Most recently, BackSTage Staatstheater KA was updated on August 29, 2026 and ZAL App ROGER on September 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.*