{"app_store_id":6476021708,"slug":"unscrew-master-nuts-bolts-6476021708","name":"Unscrew Master: Nuts & Bolts","subtitle":"Unscrew Nuts and bolts puzzle","icon_url":"https://is1-ssl.mzstatic.com/image/thumb/Purple221/v4/f8/4e/27/f84e2702-1ba7-a11c-3057-a978a18a9708/AppIcon-0-0-1x_U007emarketing-0-8-0-85-220.png/512x512bb.jpg","store_url":"https://apps.apple.com/us/app/unscrew-master-nuts-bolts/id6476021708?uo=4","price":0,"currency":"USD","rating":4.79104,"rating_count":22105,"in_app_purchases":true,"recent_rating":null,"recent_review_count":null,"reviews_checked_at":"2026-10-18T16:52:11.894Z","primary_genre":"Games","version_date":"2026-08-25T20:11:17Z","updated_at":"2026-10-22T00:58:12.700Z","stale":false,"missing_since":null,"one_liner":"A puzzle game where you unscrew, untangle and rearrange metal plates, rings, ropes and bolts across a growing set of…","verified_maker":false,"maker_site":null,"file_size_bytes":422414336,"minimum_os":"15.2","content_rating":"9+","language_count":8,"screenshots":["https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/3e/4d/28/3e4d28ab-3d07-ccd6-d86a-db665731b0f9/1.png/320x480bb.jpg","https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/25/f8/94/25f89479-01f2-cc32-470b-6b0ce4831f9f/2.png/320x480bb.jpg","https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/74/e8/25/74e82577-66fe-55d9-3b95-465ece4ebb4d/3.png/320x480bb.jpg","https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/86/bf/15/86bf158d-0aa3-1ac8-c1f6-bce67d4df9a6/4.png/320x480bb.jpg","https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/ac/8f/37/ac8f3706-478d-2e3f-eb90-70b266586353/5.png/320x480bb.jpg","https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/8e/00/50/8e0050e2-354e-d3dd-2419-916e8e84719a/6.png/320x480bb.jpg","https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/50/d3/bd/50d3bd51-9d0e-ec6f-90e7-6d9c173af3a1/7.png/320x480bb.jpg","https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/a7/78/dc/a778dc4c-53d6-dc07-cde0-005c37cbb223/8.png/320x480bb.jpg"],"developer_name":"VN World Trade Inc","editors_choice":false,"url":"https://apptierlist.com/apps/unscrew-master-nuts-bolts-6476021708/","api_url":"https://apptierlist.com/api/v1/apps/unscrew-master-nuts-bolts-6476021708","schema_version":"1.0","generated_at":"2026-10-22T07:45:04.739Z","data_as_of":"2026-10-22T07:33:12.571Z","description":"Welcome to the Screw pin: Nuts and Bolts Puzzle, where you'll encounter truly challenging brain puzzle! Experience the thrill of the new unscrew pin game and aim to become a master of screws.\n\nAs an experienced technician, adeptly unblock screws and disentangle each twisted iron piece from the intricate array of obstacles. Progress through carefully designed levels, encountering a tangle of metal plates, rings, and ropes at every twist and turn.\n\nExciting Features of Screw Pin: Nuts Bolts Puzzle\n• Skillfully manipulate and repair iron pieces, unscrew and screw pins to solve the puzzle\n• No time constraints - play at your convenience\n• Unlimited levels! Numerous screw pin jam strategies await you.\n\nCertain levels showcase metal art crafted from metal plates, while others require the use of a handsaw to cut through these plates, revealing additional holes to secure your bolts and nuts.\nDo you possess the vision and mental prowess to unravel these screw puzzles in the township of nuts and bolts games? Prepare to test your intelligence and become a legend in bridge construction.\n\nUnscrew Brain Puzzle Game is ideal for those who:\n• Enjoy puzzle games such as screw pin puzzles, screws jam, screw nut puzzles, screw mastery, bolts, and nuts\n• Seek challenges with new obstacles\n• Appreciate challenging puzzle levels and metal materials\n• Enjoy the ASMR sound of metals\n\nWhile the screw puzzle levels of nuts and bolts may appear straightforward initially, don't underestimate the complexity of the pin brain puzzle! Dive into the world of bolts and nuts games and enjoy the challenge!","facts":{"developer_id":1760667970,"developer_url":"https://vnworldtrade.pro","first_released":"2024-01-22T08:00:00Z","support_url":"https://vnworldtrade.pro/contact.html","privacy_url":"https://vnworldtrade.pro/privacy.html","website_url":"https://vnworldtrade.pro/","app_version":"39","release_notes":"New levels updated!","rating_current_version":4.79104,"rating_count_current_version":22105,"star_counts":[224,103,372,2670,18736],"genres":["Games","Casual","Puzzle"],"languages":["EN","FR","DE","JA","KO","ZH","ES","ZH"],"content_advisories":["Infrequent/Mild Cartoon or Fantasy Violence"],"device_families":["iphone","ipad","ipod"],"chart":null},"freshness":{"apple_read_at":"2026-10-22T00:58:12.700Z","catalog_read_at":"2026-10-22T00:58:12.700Z","reviews_checked_at":"2026-10-18T16:52:11.894Z","summary_written_at":"2026-10-14T17:38:19.784Z","placed_at":"2026-10-14T13:49:19.780Z","scored_at":"2026-10-22T07:33:12.571Z"},"editorial":{"one_liner":"A puzzle game where you unscrew, untangle and rearrange metal plates, rings, ropes and bolts across a growing set of…","what_is":"Unscrew Master: Nuts & Bolts is a Games app in which the player works through puzzle levels by unscrewing and disentangling twisted iron pieces from obstacles such as metal plates, rings and ropes. Some levels show metal art, and others require using a handsaw to cut plates to reveal extra holes for bolts and nuts. The listing states there are no time constraints and that the levels are unlimited.","good_for":["Players who enjoy screw and bolt puzzle games","Playing short or unhurried sessions with no timer","Players who like metal-themed puzzles and ASMR metal sounds"],"pricing":"Unscrew Master: Nuts & Bolts is free to download, with in-app purchases on the App Store.","faq":[{"q":"Is the app free to download?","a":"The App Store listing shows the price as free."},{"q":"Are the levels timed?","a":"There are no time constraints and players can play at their convenience. It also describes the number of levels as unlimited."},{"q":"Does the game involve cutting metal?","a":"Yes. Certain levels require using a handsaw to cut through metal plates, which reveals additional holes to secure bolts and nuts."}],"model":"claude-haiku-5-5","created_at":"2026-10-14T17:38:19.784Z"},"memberships":[{"list":"screw-puzzles","list_name":"screw puzzles","list_status":"active","list_url":"https://apptierlist.com/best/screw-puzzles/","position":15,"tier":"A","score":90.5,"components":{"rating":95.8,"votes":83.8,"rank":82.6,"recency":100},"status":"active","review_status":"checked","list_ranking_status":"ranked","confidence":"normal","judged_at":"2026-10-14T13:49:19.780Z"},{"list":"puzzle-games","list_name":"puzzle games","list_status":"active","list_url":"https://apptierlist.com/best/puzzle-games/","position":578,"tier":null,"score":69.9,"components":{"rating":95.8,"votes":83.8,"rank":0,"recency":100},"status":"active","review_status":"checked","list_ranking_status":"ranked","confidence":"provisional","judged_at":"2026-10-14T13:49:19.780Z"}],"main_list":"screw-puzzles","claim":{"status":"none","verified":false,"site_url":null,"verified_via":null,"verified_domain":null},"history":[{"id":123371,"at":"2026-10-16T06:55:50.157Z","kind":"tier_changed","list":"screw-puzzles","app_store_id":6476021708,"app":"unscrew-master-nuts-bolts-6476021708","from":"S","to":"A","reason":"rank shift: #12, score unchanged at 91.4, tier full (a quarter of the list)","job":"rescore"},{"id":121895,"at":"2026-10-16T05:25:51.906Z","kind":"tier_changed","list":"screw-puzzles","app_store_id":6476021708,"app":"unscrew-master-nuts-bolts-6476021708","from":"C","to":"S","reason":"score 69.8 to 91.4","job":"rescore"},{"id":112661,"at":"2026-10-15T16:02:00.413Z","kind":"tier_changed","list":"screw-puzzles","app_store_id":6476021708,"app":"unscrew-master-nuts-bolts-6476021708","from":"D","to":"C","reason":"rank shift: #10, score unchanged at 69.8","job":"rescore"},{"id":90953,"at":"2026-10-15T02:03:53.108Z","kind":"tier_changed","list":"screw-puzzles","app_store_id":6476021708,"app":"unscrew-master-nuts-bolts-6476021708","from":"C","to":"D","reason":"rank shift: #20, score unchanged at 69.8, tier full (a quarter of the list)","job":"rescore"},{"id":80758,"at":"2026-10-14T14:06:19.987Z","kind":"tier_changed","list":"screw-puzzles","app_store_id":6476021708,"app":"unscrew-master-nuts-bolts-6476021708","from":null,"to":"C","reason":"score 69.8","job":"rescore"},{"id":80200,"at":"2026-10-14T13:49:19.780Z","kind":"membership_added","list":"screw-puzzles","app_store_id":6476021708,"app":"unscrew-master-nuts-bolts-6476021708","from":null,"to":"active","reason":"Core gameplay is unscrewing bolts and nuts in the right order to free metal plates, rings and ropes.","job":"shadow"},{"id":80199,"at":"2026-10-14T13:49:19.780Z","kind":"membership_added","list":"puzzle-games","app_store_id":6476021708,"app":"unscrew-master-nuts-bolts-6476021708","from":null,"to":"active","reason":"It is a level-based puzzle game with unlimited levels and obstacles to solve.","job":"shadow"},{"id":73025,"at":"2026-10-14T00:47:44.559Z","kind":"app_added","list":null,"app_store_id":6476021708,"app":"unscrew-master-nuts-bolts-6476021708","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":"screw-puzzles","list_name":"screw puzzles","status":"active","review_status":"checked","position":15,"tier":"A","score":90.5,"components":{"rating":95.8,"votes":83.8,"rank":82.6,"recency":100},"ranks":[{"country":"us","rank":9},{"country":"gb","rank":22},{"country":"ca","rank":24},{"country":"au","rank":35},{"country":"de","rank":2}],"verdicts":[{"verdict":"keep","reason":"Core gameplay is unscrewing bolts and nuts in the right order to free metal plates, rings and ropes.","verifier":"claude-sonnet-5-5","decided_at":"2026-10-14T13:49:19.780Z","attempts":1,"current":true},{"verdict":"keep","reason":"approved from the list's side","verifier":"list check","decided_at":"2026-10-14T13:49:19.780Z","attempts":1,"current":true}]},{"list":"puzzle-games","list_name":"puzzle games","status":"active","review_status":"checked","position":578,"tier":null,"score":69.9,"components":{"rating":95.8,"votes":83.8,"rank":0,"recency":100},"ranks":[],"verdicts":[{"verdict":"keep","reason":"It is a level-based puzzle game with unlimited levels and obstacles to solve.","verifier":"claude-sonnet-5-5","decided_at":"2026-10-14T13:49:19.780Z","attempts":1,"current":true},{"verdict":"keep","reason":"approved from the list's side","verifier":"list check","decided_at":"2026-10-14T13:49:19.780Z","attempts":1,"current":true}]}]},"data_version":40684,"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/unscrew-master-nuts-bolts-6476021708/"}}