It would seem, what could be easier than opening the door? All you need is a key. But what if it is not? Knock - and you will open. You just need to be able to reach ...

How many doors can you open?

Try a new, unlike other puzzle!
“Knock in doors” is a unique project that has no analogues and is addictive from the first ... knock!
The game helps to develop a musical ear, sense of rhythm, attentiveness and trains memory. In the form of a game will help develop all the necessary qualities for future artists, musicians and dancers.

- Free access.
- Ability to play without an internet connection.
- Simple control.
- Suitable for both adults and children.
- It weighs a little.
- Play conveniently on any device.
- It has two modes (with sound and vibration mode) that will allow you to play in any situation and under any conditions.
- Does not contain scenes of violence, profanity, does not injure the psyche.

App Privacy

The developer, Mikhail Dryaev, has not provided details about its privacy practices and handling of data to Apple. For more information, see the developer’s privacy policy.

No Details Provided

The developer will be required to provide privacy details when they submit their next app update.


  • Game Center

    Challenge friends and check leaderboards and achievements.

  • Family Sharing

    Up to six family members will be able to use this app with Family Sharing enabled.

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