Dangerous app for Children

Hi,

today I found my daughter using a chat forum on a colouring app that she’s been using since she was 5, she’s 9 now. She loves to draw and colour and she does use this app frequently but I wasn’t aware that the app had a chat forum attached. When I opened up the chat section I found very disturbing content and in my opinion there are an abundance of adults disguised as children taking to children on this app. The app is called “colorfy”.

This app is advertised as 4+ but the chat section is not suitable for children

and it’s not being policed by the developer either. I’m trying to report it - can anyone please tell me how best to do this?

Thanks