Visual planner/timetable app

I’m trying to help my daughter with anxiety. Does anyone have any feedback on visual planner apps for autistic teens? I want to help her with fear of the unknown, and organising her day. We’ve tried lists but that hasn’t gone so well. I wondered if a visual approach would be better. She likes using her iPad/phone so an app might work better than a physical paper chart and a bit more grown up. 

Thank you