# svt One App vs ZAL App ROGER

svt One App 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 September 13, 2026 and September 25, 2026 respectively.

## The numbers

| Metric | svt One App | ZAL App ROGER |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Fortnightly | Fortnightly |
| Size | 83 MB | 83 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [svt Services Holding GmbH](https://appshunter.io/developer/1840342309) | [ZAL Zentrum für Angewandte Luftfahrtforschung GmbH](https://appshunter.io/developer/1896331585) |

## What reviewers say

### svt One App

[App page](https://appshunter.io/ios/app/svt-one-app/id1582467780)

**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 svt One App free?

svt One App 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 svt One App or ZAL App ROGER have ads?

Neither svt One App nor ZAL App ROGER shows ads.

### Which is updated more often, svt One App or ZAL App ROGER?

svt One App ships an update fortnightly, and ZAL App ROGER fortnightly. Most recently, svt One App was updated on September 13, 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.*