# WI.LI vs ZAL App ROGER

WI.LI 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 14, 2026 and September 25, 2026 respectively.

## The numbers

| Metric | WI.LI | 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 | [Wilhelm Linnenbecker GmbH & Co. Kommanditgesellschaft](https://appshunter.io/developer/1703981431) | [ZAL Zentrum für Angewandte Luftfahrtforschung GmbH](https://appshunter.io/developer/1896331585) |

## What reviewers say

### WI.LI

[App page](https://appshunter.io/ios/app/wili/id6463130552)

**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 WI.LI free?

WI.LI 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 WI.LI or ZAL App ROGER have ads?

Neither WI.LI nor ZAL App ROGER shows ads.

### Which is updated more often, WI.LI or ZAL App ROGER?

WI.LI ships an update fortnightly, and ZAL App ROGER fortnightly. Most recently, WI.LI was updated on September 14, 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.*