To show the whole class how the application runs, I try to display it on a TV/interactive whiteboard from my device, but there is no sound/picture. Help!

Projecting from a laptop or desktop computer usually works well. However, the problem described often occurs with mobile devices.

If you’re using an iOS device, try using the control panel to select a different AirPlay configuration. Also, make sure your device has the latest version of iOS installed.

If you are still having problems, please contact us at Explain the situation and tell us which app you are trying to project. Together we will surely find a solution to the problem!

The game does not work! At some point it crashes or hangs up, is slow etc. What can I do?

Oh dear!

If this happens, please contact us via and explain the problem. Tell us on which device (model) and operating system you have installed the application (Windows, MacOS, iOS or Android) as well as the version of the application (you can see this in the options menu, e.g. it says “2.20.01”).

If we cannot find a solution, you can request a refund. For details, see “I want a refund for my purchase. What do I need to do?”.

I’m trying to install one of your apps on Windows 10 / macOS but I get a warning that the app may be unsafe and it doesn’t let me open it!

This warning appears due to downloading the app from the Internet. If you downloaded the app from our website, this is normal.

To open the app on Windows you can press “More info” in the warning screen and then “Run anyway”.

On macOS, you may need to right-click the app and select “Open” INSTEAD of just double-clicking the app to open. Doing it from the context menu lets you choose “Open” again in the question dialog that appears.

Why can I do a number of things only after I have purchased the full version?

We understand the question, but please keep in mind that our applications are essentially still paid software. We provide them as free trial versions, so you can try them out to see if they work well for you before you buy the full version.

If something is not available in the light/demo/trial version, it’s because we thought it would make more sense for users to have access to it only after they have purchased it.

The game is frequently detecting other notes and is very sensitive when I play.

If you are using your device’s speaker and the sound is set very loud, the microphone may have trouble distinguishing the sounds you play from the music in the app. For this reason, we recommend wearing headphones when playing.

Another possible solution is to move the microphone away from the speakers (if possible) or reduce the volume of the game.

Also, if there is a lot of noise around you (e.g. from traffic or people talking loudly), the game may not be able to hear your instrument well. Try to find a quiet place to practice.

If possible, you can also play closer to the microphone. This helps the game a little.

The problem can also be technical. If you are playing under Windows or MacOS, please check the input volume of the microphone:

– In Windows, double-click on the microphone and go to “Level”.
– Under MacOS, select your input device under Sound > Input.

Make sure that the input volume and/or boost level are sufficiently high.

The game is not responding to my instrument (recorder, drum sticks, etc). There are no detected notes at all!

Did you get an error message from the app when using the microphone? Then it could be that you have not yet allowed it to access the microphone of your device. The app will ask you for this permission the first time you start it. If you want to edit this setting later, go to System Preferences, select the app and enable microphone access. You can usually find this option under the menu items “Privacy” or “Permissions”. Don’t worry, our apps only use the microphone for sound recognition.

If this was not the cause of the problem, it could also be due to the microphone selection.

In Windows and Mac OS, check that your microphone is working and is selected as the default microphone (Note: You may even be able to select the appropriate microphone within the app, even if you don’t have the default microphone set in your System Preferences).

  • In Windows, right-click on the volume icon in the system tray (lower right corner of the screen), click on “Open sound settings” and select the default input device. You can get better results by activating¬†filters (“Enhancements”), because the mute background noise.
  • Under macOS you can make these settings here: System Settings > Sound > and here under Input select your >Input Device>.

To see if your microphone works at all, check the level of your microphone by simply generating noise (under Windows a green bar should appear, under macOS a grey bar).