{"package_name":"com.chrbayer.mathe_trainer","name":"Mathe-Trainer","summary":"Mental arithmetic practice for primary school. German interface.","category":"Science & Education","icon_url":"/api/icon/com.chrbayer.mathe_trainer","latest_version_code":213092,"latest_version_name":"2.13.9","apk_url":"/api/apk/com.chrbayer.mathe_trainer","apk_size":21734527,"apk_sha256":"8505e7f41b52d4af42502460da7a612715f249fec802b91516a7e6feb170244b","source_kind":"fdroid-repo","repo_slug":"fdroid-main","last_updated":1790910019,"release_timestamp":1790844777,"description":"Mental arithmetic practice on a tablet, for children from their first school\nyear. The app measures the time to the correct answer and turns it into a\nlearning curve and leaderboards, where several children on the same device\ncompete with each other.\n\nThe interface is in German only.\n\nIt runs entirely offline. No account, no ads, no analytics and no internet\npermission - the app cannot send anything anywhere.\n\n76 lessons in nine groups\n\nCounting and comparing pictures for the youngest, then addition and\nsubtraction up to 10, 20, 100 and 1000 - with and without carrying - the\ntimes tables forwards and backwards, division with and without a remainder,\norder of operations, telling the time and handling money.\n\nStars for care, lightning bolts for speed\n\nTwo separate axes on purpose. Stars follow the error rate, bolts the time per\ntask. A child who works carefully earns the stars even slowly.\n\nWhat parents can set\n\nBehind a PIN: which groups a child is offered at all, how long they may\npractise in one stretch and per day, how many runs of one lesson still count\ntowards records in a day, and whether difficult tasks are woven back in.\n\nAssignments too: give a child a lesson, daily or weekly, or as a plan for one\nnamed day, with a minimum of stars and bolts to reach.\n\nYour data stays with you\n\nEverything lives in a database on the device. A backup is written only when\nyou ask for one, and handed to Android's share sheet - where it goes is your\nchoice.\n","categories":["Science & Education"]}