99math OU Android Apps and Games

99math is an Android maths-practice app that combines account-based learning with a colourful game world. Players can sign in with Google or an email/username account, create a free account, and enter an activity code when joining a class or group experience. The captured interface includes a guide character, avatar, pets, friends, rewards, skills, a shop, and decoration controls around a central world. It is designed to make regular maths activities feel more engaging while giving learners a visible sense of progress and personalisation.