{"app_store_id":437747279,"slug":"killer-sudoku-437747279","name":"Killer Sudoku!","subtitle":null,"icon_url":"https://is1-ssl.mzstatic.com/image/thumb/Purple123/v4/4d/e4/55/4de455b6-d6d2-c163-c291-755b50530c19/AppIcon-1x_U007emarketing-0-7-0-85-220.png/512x512bb.jpg","store_url":"https://apps.apple.com/us/app/killer-sudoku/id437747279?uo=4","price":0,"currency":"USD","rating":4.77866,"rating_count":2024,"in_app_purchases":null,"recent_rating":null,"recent_review_count":null,"reviews_checked_at":null,"primary_genre":"Games","version_date":"2020-06-20T23:27:44Z","updated_at":"2026-10-19T13:21:11.614Z","stale":false,"missing_since":null,"one_liner":"Games app by Sarah Pierce on the App Store.","verified_maker":false,"maker_site":null,"file_size_bytes":13713408,"minimum_os":"9.0","content_rating":"4+","language_count":1,"screenshots":["https://is1-ssl.mzstatic.com/image/thumb/PurpleSource113/v4/5b/e6/16/5be61682-01be-a7b5-c194-99f203d2aed9/e3913508-f811-4b2e-8f01-1f01196cc0e0_iphone8_ss1.png/392x696bb.png","https://is1-ssl.mzstatic.com/image/thumb/PurpleSource113/v4/b2/86/d0/b286d08c-f966-fae1-8fc7-5a2177d23adb/c6274612-fead-4818-8159-f1f76f20712a_iphone8_ss2.png/392x696bb.png","https://is1-ssl.mzstatic.com/image/thumb/PurpleSource113/v4/eb/85/91/eb8591c1-92a5-5fd7-2288-e45c7deb7b2c/1c3048a5-2764-4d8b-b43b-6fbcbad4ab47_iphone8_ss3.png/392x696bb.png","https://is1-ssl.mzstatic.com/image/thumb/PurpleSource113/v4/b0/cc/21/b0cc2130-84a1-9166-a111-6ca845bf090c/c0baeda0-7311-4b18-8122-32163cf7247b_iphone8_ss4.png/392x696bb.png","https://is1-ssl.mzstatic.com/image/thumb/PurpleSource113/v4/b8/f1/52/b8f152f7-5093-1d10-b5da-e9f2da0c7d0e/0cfdca0d-3c35-4cf3-a62d-abce750d6ac4_iphone8_ss5.png/392x696bb.png","https://is1-ssl.mzstatic.com/image/thumb/PurpleSource123/v4/15/5c/9a/155c9a8e-1065-a06d-df15-0038c9c4b602/787ef040-da13-407f-abfa-56d33290c9ce_iphone8_ss8.png/392x696bb.png","https://is1-ssl.mzstatic.com/image/thumb/PurpleSource113/v4/64/a5/af/64a5af4e-ca98-9823-f2ca-e4c7d58dc2f0/47a57f2d-09e2-4a1d-8b23-e7a973569d3f_iphone8_ss7.png/392x696bb.png","https://is1-ssl.mzstatic.com/image/thumb/PurpleSource123/v4/1f/9b/54/1f9b54ce-4a01-16d2-5505-08d0974c6f98/44f1e47b-89fb-4fa9-8bf6-156cc4d8f719_iphone8_ss9.png/392x696bb.png"],"developer_name":"Sarah Pierce","editors_choice":null,"url":"https://apptierlist.com/apps/killer-sudoku-437747279/","api_url":"https://apptierlist.com/api/v1/apps/killer-sudoku-437747279","schema_version":"1.0","generated_at":"2026-10-22T10:31:41.566Z","data_as_of":"2026-10-22T10:20:13.025Z","description":"Even better than killer sudoku on paper!\n\nKiller sudoku is a popular variation on classic sudoku puzzles. To complete a puzzle you must fill the board with numbers that obey traditional sudoku rules AND make each outlined region sum to a specific value. The grid begins blank, but these rules give you all the information you need to solve the puzzle!\n\nSolving a killer sudoku puzzle requires a lot of notes, so we worked hard to make the note entry features in this app perfect. A dedicated note keypad and the ability to select multiple squares makes entering notes fast. You can even make combination lists that float above the puzzle and can be rearranged on the screen! Cross out combinations from your lists as you rule them out.\n\nOur interface is so good, you may prefer it to doing puzzles on paper.\n\nFeatures: \n- Dual keypads -- no tedious toggling between note and answer mode \n- Multi-square note entry -- a huge timesaver \n- Handy combination lists -- can be rearranged on the screen for easy comparison\n- Quick sum button -- add all selected sum labels instantly \n- Quick combination list button -- list all combinations fast by dragging over the desired region\n- Built-in mini calculator -- do even long sums easily\n- Undo & redo buttons -- step back through your changes to fix a mistake\n- Mistake highlighting option -- don't let mistyped entries from set you back\n- Auto note option -- automatically remove trivially eliminated notes when you enter an answer\n- Two color schemes -- a neutral newspaper color scheme and a rainbow color scheme\n- Puzzle gallery -- scroll through puzzles and see your progress instantly\n- Comes with 10 free puzzles for testing, and over 3,000 puzzles available for purchase\n\nWe made this app free so that you can test it without having to buy anything. It comes with ten free killer sudoku puzzles--two puzzles in each of the five levels. There are also more than three thousand puzzles available to purchase, but the ten free puzzles might just keep you busy for a long time :)\n\nAll our killer sudoku puzzles have a unique solution.","facts":{"developer_id":406813189,"developer_url":null,"first_released":"2011-05-26T02:10:15Z","support_url":null,"privacy_url":null,"website_url":null,"app_version":"4.1","release_notes":"- Landscape is back on iPad! \n- Bug fix for \"Puzzle complete\" problem\n\nThank you to everyone who emailed with bug reports and feedback about the recent update. Your emails help me get things fixed faster! Please let me know if you have any issues with the latest version. Best, Sarah","rating_current_version":4.77866,"rating_count_current_version":2024,"star_counts":null,"genres":["Games","Puzzle","Education"],"languages":["EN"],"content_advisories":null,"device_families":null,"chart":null},"freshness":{"apple_read_at":"2026-10-19T13:21:11.614Z","catalog_read_at":null,"reviews_checked_at":null,"summary_written_at":null,"placed_at":"2026-10-20T03:48:11.542Z","scored_at":"2026-10-22T10:20:13.025Z"},"editorial":null,"memberships":[{"list":"sudoku","list_name":"sudoku","list_status":"active","list_url":"https://apptierlist.com/best/sudoku/","position":46,"tier":null,"score":54,"components":{"rating":95,"votes":76.9,"rank":44.2,"recency":0},"status":"active","review_status":"checked","list_ranking_status":"ranked","confidence":"normal","judged_at":"2026-10-20T03:48:11.542Z"},{"list":"puzzle-games","list_name":"puzzle games","list_status":"active","list_url":"https://apptierlist.com/best/puzzle-games/","position":2339,"tier":null,"score":43,"components":{"rating":95,"votes":76.9,"rank":0,"recency":0},"status":"active","review_status":"checked","list_ranking_status":"ranked","confidence":"provisional","judged_at":"2026-10-20T03:48:11.542Z"}],"main_list":"sudoku","claim":{"status":"none","verified":false,"site_url":null,"verified_via":null,"verified_domain":null},"history":[{"id":183410,"at":"2026-10-20T03:48:11.542Z","kind":"membership_added","list":"sudoku","app_store_id":437747279,"app":"killer-sudoku-437747279","from":null,"to":"active","reason":"Killer sudoku puzzle game with sudoku grid rules plus region sums, notes keypad, and combination lists.","job":"shadow"},{"id":183409,"at":"2026-10-20T03:48:11.542Z","kind":"membership_added","list":"puzzle-games","app_store_id":437747279,"app":"killer-sudoku-437747279","from":null,"to":"active","reason":"placed by the category system","job":"shadow"},{"id":177005,"at":"2026-10-19T13:21:11.614Z","kind":"app_added","list":null,"app_store_id":437747279,"app":"killer-sudoku-437747279","from":null,"to":null,"reason":"discovered","job":"import"}],"explain":{"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":"sudoku","list_name":"sudoku","status":"active","review_status":"checked","position":46,"tier":null,"score":54,"components":{"rating":95,"votes":76.9,"rank":44.2,"recency":0},"ranks":[{"country":"us","rank":40}],"verdicts":[{"verdict":"keep","reason":"Killer sudoku puzzle game with sudoku grid rules plus region sums, notes keypad, and combination lists.","verifier":"claude-sonnet-5-5","decided_at":"2026-10-20T03:48:11.542Z","attempts":1,"current":true},{"verdict":"keep","reason":"Killer sudoku is a sudoku variant with playable grids, comparable to Killer Sudoku by Sudoku.com already in the list.","verifier":"list check","decided_at":"2026-10-20T03:48:11.542Z","attempts":1,"current":true}]},{"list":"puzzle-games","list_name":"puzzle games","status":"active","review_status":"checked","position":2339,"tier":null,"score":43,"components":{"rating":95,"votes":76.9,"rank":0,"recency":0},"ranks":[],"verdicts":[{"verdict":"keep","reason":"A killer sudoku puzzle game played for fun and mental challenge, which fits a puzzle games list.","verifier":"list check","decided_at":"2026-10-20T03:48:11.542Z","attempts":1,"current":true}]}]},"data_version":40788,"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/apps/killer-sudoku-437747279/"}}