The new “Poppy Cat” app is now available for iOS and Android devices.

Created by Coolabi and U.K. animators Studio Liddell the app lets children join in the fun with Poppy Cat’s friends who have planned a surprise party and treasure hunt for her birthday. The app features 12 mini-games, an interactive treasure map, video clips and other activities. 

Poppy Cat will also make appearances at John Lewis and The Entertainer stores in the U.K. later this month in a series of live character events.

The Poppy Cat brand is based on the award-winning book series created by Lara Jones, which has sold more than 2.5 million copies.