{"app_store_id":640720527,"slug":"stress-free-sudoku-game-book-640720527","name":"Stress Free Sudoku Game Book!","subtitle":"200,000 Puzzles, Easy-Expert","icon_url":"https://is1-ssl.mzstatic.com/image/thumb/Purple221/v4/17/4c/a4/174ca488-caf7-4c6c-7694-9a507f4dabcc/AppIcon-0-0-1x_U007emarketing-0-4-85-220.jpeg/512x512bb.jpg","store_url":"https://apps.apple.com/us/app/stress-free-sudoku-game-book/id640720527?uo=4","price":0,"currency":"USD","rating":4.77802,"rating_count":10393,"in_app_purchases":false,"recent_rating":null,"recent_review_count":null,"reviews_checked_at":"2026-10-19T05:14:11.694Z","primary_genre":"Games","version_date":"2026-06-10T15:06:08Z","updated_at":"2026-10-23T00:36:13.226Z","stale":false,"missing_since":null,"one_liner":"Sudoku app with 200,000 puzzles across five difficulty levels, with no timers and optional highlighting and guidelines.","verified_maker":false,"maker_site":null,"file_size_bytes":58083328,"minimum_os":"12.0","content_rating":"4+","language_count":1,"screenshots":["https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/3a/b2/24/3ab22414-2dc3-5ba4-df7b-6e19163cae41/ee0f6793-86d0-4360-8ca4-f3aa808ea803_FIXED-IPHONE-PROmax_IPHONE-X2.jpg/320x480bb.jpg","https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/36/dd/8e/36dd8e79-e8b1-4706-3e85-5ac345023b81/aeb60a6d-0523-4551-a37c-184fddc17ded_FIXED-IPHONE-PROmax_IPHONE-X2B.jpg/320x480bb.jpg"],"developer_name":"Boy Howdy Technology LLC","editors_choice":false,"url":"https://apptierlist.com/apps/stress-free-sudoku-game-book-640720527/","api_url":"https://apptierlist.com/api/v1/apps/stress-free-sudoku-game-book-640720527","schema_version":"1.0","generated_at":"2026-10-23T07:32:38.572Z","data_as_of":"2026-10-23T07:17:10.547Z","description":"• 100% FREE!  DOWNLOAD NOW AND START HAVING FUN!  :-)\n\"This is by far the best Soduku App. The highlighting of the numbers is fantastic.\" --DrMike94\n\"So many levels!!! This game is brilliant, I'm addicted. I really recommend it for people who love sudoku!\" --B3thB3th15\n\nBEST SUDOKU EVER: \"I have played on a number of games and this is by far the BEST one I have ever truly enjoyed! NO timers, NO penalties for bumping the wrong number. Just plain ol relaxation solving a game I really enjoy. Thanks for taking the complications out of this game.\"\n--AuntMadre\n\n• 200,000 Sudoku Puzzles, with 5 difficulty levels!\n• No timers at all!  Just relax and have fun!\n• Full UNDO support!\n\n• 10,000 Very Easy Sudokus!\n• 40,000 Easy Sudokus!\n• 50,000 Medium Sudokus!\n• 50,000 Hard Sudokus!\n• 50,000 Genius Sudokus!\n\n• Beautiful, easy to read numbers!\n\n• Fast and intuitive dual-keypad input system - just tap a cell and easily mark your answer or pencil marks!\n• Pencil marks are auto-erased as you enter answers!  (Can be turned off if you wish)\n• Horizontal and Vertical guidelines make it easy to look at your current row and column (Can be turned off if you wish)\n\n• Auto-highlight other cells with the same number as the currently selected cell\n• Auto-highlight cells that have a visible conflict\n• Auto-highlight pencil marks that have a visible conflict\n(All of these highlights can be disabled if you wish)\n\n• Hint function if you get stuck!\n• Check your work function, to spot any problems you've got if you're unsure!\n\n• Your progress is automatically saved, all the time, so go ahead and take that call or jump out to any other apps - you can come back and pick up playing right where you left off!\n\n• Sounds can be disabled if you want a quiet game\n• You can even listen to your own music while you play\n\nThanks for playing!\nCome see us at http://boyhowdytechnology.com","facts":{"developer_id":293910537,"developer_url":"http://boyhowdytechnology.com/boyhowdysudoku/","first_released":"2013-05-10T07:00:00Z","support_url":"http://boyhowdytechnology.com/contact","privacy_url":"http://boyhowdytechnology.com/privacy","website_url":"http://boyhowdytechnology.com/boyhowdysudoku/","app_version":"1.38","release_notes":"• Updated for the latest iOS\n\nThanks for playing! \nSearch for \"Boy Howdy Technology\" to see all our free games!","rating_current_version":4.77802,"rating_count_current_version":10393,"star_counts":[63,44,257,1416,8608],"genres":["Games","Education","Strategy","Trivia"],"languages":["EN"],"content_advisories":null,"device_families":["iphone","ipad","ipod"],"made_for_iphone_duo":null,"chart":null},"freshness":{"apple_read_at":"2026-10-23T00:36:13.226Z","catalog_read_at":"2026-10-16T11:16:49.454Z","reviews_checked_at":"2026-10-19T05:14:11.694Z","summary_written_at":"2026-10-20T22:39:12.991Z","placed_at":"2026-10-15T10:34:36.037Z","scored_at":"2026-10-23T07:17:10.547Z"},"editorial":{"one_liner":"Sudoku app with 200,000 puzzles across five difficulty levels, with no timers and optional highlighting and guidelines.","what_is":"Stress Free Sudoku Game Book is a free Games app offering 200,000 sudoku puzzles in five difficulty levels, from Very Easy to Genius. The listing describes no timers, undo support, a dual-keypad input system for numbers and pencil marks, and a hint and check-your-work function. Progress is saved automatically, and sounds and highlights can be turned off.","good_for":["Playing sudoku without a timer","Working through many puzzles across difficulty levels","Pausing a puzzle and resuming later from the same spot"],"pricing":"Stress Free Sudoku Game Book! is free, with no in-app purchases on the App Store.","faq":[{"q":"Is the app free?","a":"Yes."},{"q":"Does the app have a timer or penalties for wrong numbers?","a":"There are no timers at all. The description does not mention any other penalty system for wrong entries."},{"q":"Which iPhone or iPad versions does it support?","a":"Not stated on the App Store."}],"model":"claude-haiku-5-5","created_at":"2026-10-20T22:39:12.991Z"},"memberships":[{"list":"sudoku","list_name":"sudoku","list_status":"active","list_url":"https://apptierlist.com/best/sudoku/","position":21,"tier":"B","score":82,"components":{"rating":95.2,"votes":81.5,"rank":63.6,"recency":87.9},"status":"active","review_status":"checked","list_ranking_status":"ranked","confidence":"normal","judged_at":"2026-10-15T10:34:36.037Z"},{"list":"puzzle-games","list_name":"puzzle games","list_status":"active","list_url":"https://apptierlist.com/best/puzzle-games/","position":1426,"tier":null,"score":66.1,"components":{"rating":95.2,"votes":81.5,"rank":0,"recency":87.9},"status":"active","review_status":"checked","list_ranking_status":"ranked","confidence":"provisional","judged_at":"2026-10-15T10:34:36.037Z"}],"main_list":"sudoku","claim":{"status":"none","verified":false,"site_url":null,"verified_via":null,"verified_domain":null},"maker":null,"history":[{"id":133698,"at":"2026-10-16T22:30:13.415Z","kind":"tier_changed","list":"sudoku","app_store_id":640720527,"app":"stress-free-sudoku-game-book-640720527","from":"C","to":"B","reason":"rank shift: #17, score 82.3, tier full (a quarter of the list)","job":"rescore"},{"id":126515,"at":"2026-10-16T14:19:46.030Z","kind":"tier_changed","list":"sudoku","app_store_id":640720527,"app":"stress-free-sudoku-game-book-640720527","from":"D","to":"C","reason":"rank shift: #24, score unchanged at 66.2","job":"rescore"},{"id":104707,"at":"2026-10-15T11:13:36.042Z","kind":"tier_changed","list":"sudoku","app_store_id":640720527,"app":"stress-free-sudoku-game-book-640720527","from":null,"to":"D","reason":"score 66.2","job":"rescore"},{"id":103311,"at":"2026-10-15T10:34:36.037Z","kind":"membership_added","list":"sudoku","app_store_id":640720527,"app":"stress-free-sudoku-game-book-640720527","from":null,"to":"active","reason":"The app is built around 200,000 sudoku puzzles at 5 difficulty levels, with pencil marks, hints, and undo.","job":"shadow"},{"id":103310,"at":"2026-10-15T10:34:36.037Z","kind":"membership_added","list":"puzzle-games","app_store_id":640720527,"app":"stress-free-sudoku-game-book-640720527","from":null,"to":"active","reason":"Sudoku is a logic puzzle game played for fun and to exercise thinking, and people searching puzzle games would expect it.","job":"shadow"},{"id":96108,"at":"2026-10-15T06:43:53.122Z","kind":"app_added","list":null,"app_store_id":640720527,"app":"stress-free-sudoku-game-book-640720527","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":21,"tier":"B","score":82,"components":{"rating":95.2,"votes":81.5,"rank":63.6,"recency":87.9},"ranks":[{"country":"us","rank":29},{"country":"gb","rank":38},{"country":"ca","rank":29},{"country":"au","rank":30}],"verdicts":[{"verdict":"keep","reason":"The app is built around 200,000 sudoku puzzles at 5 difficulty levels, with pencil marks, hints, and undo.","verifier":"claude-sonnet-5-5","decided_at":"2026-10-15T10:34:36.037Z","attempts":1,"current":true},{"verdict":"keep","reason":"approved from the list's side","verifier":"list check","decided_at":"2026-10-15T10:34:36.037Z","attempts":1,"current":true}]},{"list":"puzzle-games","list_name":"puzzle games","status":"active","review_status":"checked","position":1426,"tier":null,"score":66.1,"components":{"rating":95.2,"votes":81.5,"rank":0,"recency":87.9},"ranks":[],"verdicts":[{"verdict":"keep","reason":"Sudoku is a logic puzzle game played for fun and to exercise thinking, and people searching puzzle games would expect it.","verifier":"claude-sonnet-5-5","decided_at":"2026-10-15T10:34:36.037Z","attempts":1,"current":true},{"verdict":"keep","reason":"approved from the list's side","verifier":"list check","decided_at":"2026-10-15T10:34:36.037Z","attempts":1,"current":true}]}]},"data_version":41603,"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/stress-free-sudoku-game-book-640720527/"}}