Fun Scrum
This app has two modes. First is offline mode where you can choose a story point and show it later when in time you have to reveal. To make it more interesting, you could change the card colour or background image of the card. Second mode is online where users can make an online room, share room id, and have a session of story points for a set list of stories. I use firebase to make an online room so user can interact with other users. It’s not published in play store, but you could download the android apk here with figma design here Here are the screenshot of the apps.
Home
Offline Card
Room List
Room Detail
Result tab
In this tab user can give point, manage the process of giving story point, manage cards, and basic information of the sprint and participant
Story tab
In this tab user can manage the story they want to point