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Kosmo & Klax: Treehouse Party

About Kosmo & Klax: Treehouse Party
Ready, set, let's go to the treehouse! Kosmo & Klax's cheerful and colorful world is waiting for you, so come and enjoy the gaming fun, adventure and all there is to discover. Join the two heroes in fun mini-games while helping them solve tricky tasks such as: Where is the missing nut? What other ingredient does Bibo want on his crêpe? And how do you actually piece an "A", "B" or "C" together?

Kosmo & Klax live in a treehouse in the valley of the enchanted park.
Kosmo, the curious squirrel, is always full of ideas. And Klax, his best friend and enchanted prince in the shape of a little red ball, enthusiastically accompanies him on every adventure.

They like to have their adventures with all their friends: Mr. Hare, Ms. Goose, Knabba, Lilli Graymouse and Bibo Beaver. After all, when everyone's together, things are a lot more fun: Whether they're all looking for food, puzzling letters or making the most delicious crêpes in the valley, the friends from the enchanted park are always there for each other!

The app is based on the stories and popular characters from the bestselling chapter book series by Alexandra Helmig and Timo Becker, published by Mixtvision.

+ Diverse mini-games: Find the nuts, serve the friends crêpes with the right ingredients and get to know the letters of the alphabet with Kosmo & Klax.
+ Interactive world: Explore the treehouse with its inhabitants and watch the cute details and animations over and over again.
+ Three exciting audio stories: The actress and author Alexandra Helmig gives each character a very unique voice.
+ Likable cast: Get to know the cute characters from the popular storybook series by author Alexandra Helmig und illustrator Timo Becker.

+ Playful learning: The mini-games promote motor skills and the ability to concentrate, and shape perception for young explorers aged three and over.
+ Playing and exploring without pressure: The app has no high scores or timers, thus allowing children as much time as they need to discover and play.
+ Motivating sounds: The app includes charming sound effects which provide even more fun for children.
+ Security: The app is completely ad-free and does not include in-app purchases.
+ Child-friendly: The app is easily manageable for young users.

We want you to enjoy the world of Kosmo & Klax without restrictions. That's why we're here for you should technical problems arise despite all our efforts. Please send us an email to Thank you!

Dear parents, we at Mixtvision make high-quality apps that you can discover, read and play with your children without any worries. With our "Kosmo & Klax: Treehouse Party" app, we deliberately refrain from advertising or in-app purchases. If you like our apps, we would be very happy to receive a positive review here at the App Store. Thank you!

If you're curious about what else we do, visit us in the App Store or visit for more information.

The Kosmo & Klax app is developed in cooperation with Studio Ahoiii.
Recent Updates - Version 1.0.0
  • Have fun with Kosmo & Klax and their friends!
Install On Your Mobile Device:
Google Play Store LinkApp Store Link
Install On Windows PC Or Mac:
BlueStacks LinkLDPlayer Link
How To Download & Play:
1. Download & Install AppKiwi
2. Download Kosmo & Klax: Treehouse Party APK
3. Launch from APK Library