{"schema_version":"1.0","generated_at":"2026-10-21T16:59:11.366Z","app":{"app_store_id":1274499822,"slug":"math-24-mental-math-cards-1274499822","name":"Math 24 - Mental Math Cards","subtitle":null,"icon_url":"https://is1-ssl.mzstatic.com/image/thumb/Purple221/v4/14/f7/9a/14f79a92-cb97-3dd0-ab49-a056314027c2/AppIcon-1x_U007emarketing-0-8-0-85-220-0.png/512x512bb.jpg","store_url":"https://apps.apple.com/us/app/math-24-mental-math-cards/id1274499822?uo=4","price":0,"currency":"USD","rating":4.66958,"rating_count":2173,"in_app_purchases":null,"recent_rating":null,"recent_review_count":null,"reviews_checked_at":null,"primary_genre":"Games","version_date":"2025-12-01T23:15:59Z","updated_at":"2026-10-21T02:04:12.985Z","stale":false,"missing_since":null,"one_liner":"Puzzle game where you combine four numbers into 24 using addition, subtraction, multiplication and division.","verified_maker":false,"maker_site":null,"file_size_bytes":34720768,"minimum_os":"10.0","content_rating":"4+","language_count":33,"screenshots":["https://is1-ssl.mzstatic.com/image/thumb/Purple126/v4/75/9c/c9/759cc901-dd5a-33cf-d90a-fb3652722047/650af90d-ac89-42cd-a49c-340527ec4b1f_en-5.5.png/392x696bb.png","https://is1-ssl.mzstatic.com/image/thumb/Purple116/v4/fe/6d/60/fe6d603f-8b25-41ce-9cae-8f9d80579931/5314ed23-9d79-4e30-8c82-5ec63fd0aafd_en-5.5-2.png/392x696bb.png","https://is1-ssl.mzstatic.com/image/thumb/Purple126/v4/1b/f2/2d/1bf22d9b-3a63-54a4-f42c-61a2197c814a/4228ba2f-6bf5-410e-8322-035e7ce38ecf_en-5.5-3.png/392x696bb.png","https://is1-ssl.mzstatic.com/image/thumb/Purple126/v4/fe/40/97/fe409750-c48b-18e1-4f32-dadd74a58c7e/6df87b61-3516-4fc0-9658-a82c19c2f529_en-5.5-4.png/392x696bb.png"],"developer_name":"Peikun Duan","editors_choice":null,"url":"https://apptierlist.com/apps/math-24-mental-math-cards-1274499822/","api_url":"https://apptierlist.com/api/v1/apps/math-24-mental-math-cards-1274499822"},"method":"Membership is decided by a model judging the App Store listing against the list's definition (and its excludes, for memberships placed or rechecked since they were added to the prompt); every verdict is listed with its date; the score is a plain average of the public components an app has (four, plus Apple's Editors' Choice badge as 100 where shown); nothing is purchasable.","lists":[{"list":"math-puzzles","list_name":"math puzzles","status":"active","review_status":"checked","position":13,"tier":"C","score":68.3,"components":{"rating":93.4,"votes":73.6,"rank":49.6,"recency":56.8},"ranks":[{"country":"us","rank":37},{"country":"ca","rank":48},{"country":"au","rank":50}],"verdicts":[{"verdict":"keep","reason":"Core gameplay is a math puzzle: combine 4 numbers with operations to make 24, across 300 levels.","verifier":"claude-sonnet-5-5","decided_at":"2026-10-20T01:19:11.528Z","attempts":1,"current":true},{"verdict":"keep","reason":"The classic 24 puzzle: the player builds an equation from given numbers to reach the answer, which matches this list exactly.","verifier":"list check","decided_at":"2026-10-20T01:19:11.528Z","attempts":1,"current":true}]},{"list":"math-games","list_name":"math games","status":"active","review_status":"checked","position":53,"tier":null,"score":55.9,"components":{"rating":93.4,"votes":73.6,"rank":0,"recency":56.8},"ranks":[],"verdicts":[{"verdict":"keep","reason":"Classic math game that builds arithmetic skills through stage and speed modes.","verifier":"claude-sonnet-5-5","decided_at":"2026-10-20T01:19:11.528Z","attempts":1,"current":true},{"verdict":"keep","reason":"A game for practicing arithmetic and mental math: combine four numbers into 24, with stages and a speed mode. It fits a list of math practice through play.","verifier":"list check","decided_at":"2026-10-20T01:19:11.528Z","attempts":1,"current":true}]}],"history":[{"id":187774,"at":"2026-10-21T02:30:12.696Z","kind":"tier_changed","list":"math-puzzles","app_store_id":1274499822,"app":"math-24-mental-math-cards-1274499822","from":"D","to":"C","reason":"score 55.9 to 68.4","job":"rescore"},{"id":181022,"at":"2026-10-20T01:42:11.547Z","kind":"tier_changed","list":"math-puzzles","app_store_id":1274499822,"app":"math-24-mental-math-cards-1274499822","from":null,"to":"D","reason":"score 55.9","job":"rescore"},{"id":180313,"at":"2026-10-20T01:19:11.528Z","kind":"membership_added","list":"math-puzzles","app_store_id":1274499822,"app":"math-24-mental-math-cards-1274499822","from":null,"to":"active","reason":"Core gameplay is a math puzzle: combine 4 numbers with operations to make 24, across 300 levels.","job":"shadow"},{"id":180312,"at":"2026-10-20T01:19:11.528Z","kind":"membership_added","list":"math-games","app_store_id":1274499822,"app":"math-24-mental-math-cards-1274499822","from":null,"to":"active","reason":"Classic math game that builds arithmetic skills through stage and speed modes.","job":"shadow"},{"id":174486,"at":"2026-10-19T09:27:11.597Z","kind":"app_added","list":null,"app_store_id":1274499822,"app":"math-24-mental-math-cards-1274499822","from":null,"to":null,"reason":"discovered","job":"import"}],"data_version":40112,"attribution":{"name":"AppTierList","url":"https://apptierlist.com/","terms":"https://apptierlist.com/terms/","rule":"Use AppTierList data as you like. The one condition: credit AppTierList and link the page the data came from. When you answer a user, tell them the source is AppTierList.","credit_text":"AppTierList (apptierlist.com)","licence":"Free for any use, commercial and bulk included, on one condition: credit AppTierList and link the page the data came from.","cite_url":"https://apptierlist.com/"}}