Comparison

klang² vs Virtual van de Velde

Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.

Head to head

Exploring the Villa Esche

Free

🎮 Games

No ratingsView app →

About

klang²

Read full description

20 sound squares turn your ears upside down. Which bird sings? Which composer sounds? Can you put proverbs together and recognize foreign languages? Place your smartphone with the klang² app open in the middle of the table, place a sound square on the reader and listen carefully: Off you go with your acoustic game collection! ATTENTION: This app only works together with 20 sound squares, which are available via klang2.com.

About

Virtual van de Velde

Read full description

Quiz and learning tours for young people and school classes in the Henry van de Velde Museum in the Villa Esche of the Kunstsammlungen Chemnitz. At various stations, the architect and former residents of the villa tell their stories using multimedia content, puzzles and innovative AR experiences. In this way, visitors go on an avatar guided journey back in time to experience Chemnitz around 1910.

Screenshots

klang²4 screens

Virtual van de Velde4 screens

Verdict

The call

The clearest difference is in-app purchases: Virtual van de Velde at none against klang²'s 10. Virtual van de Velde also leads on update cadence (every 3 weeks vs every 2 months) and iOS requirement (9.1 vs 15.6). On price, ads and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. klang² sells 10 one-off in-app purchases. Virtual van de Velde asks for nothing beyond the download.

UpkeepUpdate frequency

klang² ships an update every 2 months, Virtual van de Velde every 3 weeks. The most recent releases landed on September 14, 2026 and September 10, 2026 respectively.

Scorecard3 real differences · 3 level

klang² versus Virtual van de Velde: the parameters behind the verdict, then further details
Parameter	klang²	Virtual van de Velde
Price	Free	Free
Update frequency	Every 2 months	Every 3 weeks — better
Ads	No	No
In-app purchases	Yes	No — better
Devices	iPhone, iPad, iPod	iPhone, iPad, iPod
Requires iOS	15.6	9.1 — better
Further details — not scored
Size	89 MB	118 MB
Age rating	4+	4+
Developer	Oberlin & Rennertz GmbH	Fluxguide Ausstellungssysteme GmbH

In-app purchases

10 purchases

klang²

One-time10

Klang2 Pro Option 0Free
Klang2 Pro Option 1$0.99
Bundesländer und Hauptstädte$0.99

Show 7 more

Klang2 Pro Option 2$1.99
Klang2 Pro Option 3$3.99
Volkslieder Premium$3.99
Tierisch Menschlich$3.99
Klang2 Pro Option 4$7.99
Klang2 Pro Option 5$11.99
Klang2 Pro Option 6$16.99

None

Virtual van de Velde

No in-app purchases

Questions

Is klang² free?

klang² is free to download, with in-app purchases available.

Is Virtual van de Velde free?

Virtual van de Velde is free to download, with no in-app purchases.

Do klang² or Virtual van de Velde have ads?

Neither klang² nor Virtual van de Velde shows ads.

Which is updated more often, klang² or Virtual van de Velde?

klang² ships an update every 2 months, and Virtual van de Velde every 3 weeks. Most recently, klang² was updated on September 14, 2026 and Virtual van de Velde on September 10, 2026.