{"schema_version":"1.0","generated_at":"2026-10-23T10:23:54.995Z","app":{"app_store_id":1300058854,"slug":"simply-tuner-violin-cello-1300058854","name":"Simply Tuner - Violin, Cello","subtitle":"A simple tuner for beginners.","icon_url":"https://is1-ssl.mzstatic.com/image/thumb/Purple122/v4/ea/7d/51/ea7d5123-2325-183c-0c9b-5e630ef69ce6/Tuner-0-0-1x_U007emarketing-0-7-0-0-85-220.png/512x512bb.jpg","store_url":"https://apps.apple.com/us/app/simply-tuner-violin-cello/id1300058854?uo=4","price":0,"currency":"USD","rating":4.22049,"rating_count":2567,"in_app_purchases":false,"recent_rating":null,"recent_review_count":null,"reviews_checked_at":null,"primary_genre":"Music","version_date":"2024-02-23T01:27:09Z","updated_at":"2026-10-22T20:54:12.928Z","stale":false,"missing_since":null,"one_liner":"Free tuner for violin, viola and cello that shows an indicator and short text instructions for each open string.","verified_maker":false,"maker_site":null,"file_size_bytes":209999872,"minimum_os":"12.0","content_rating":"4+","language_count":6,"screenshots":["https://is1-ssl.mzstatic.com/image/thumb/Purple113/v4/69/1a/6c/691a6ccd-5983-5d99-e49e-f7f83a3b76b3/pr_source.png/392x696bb.png","https://is1-ssl.mzstatic.com/image/thumb/Purple123/v4/2d/84/22/2d84223c-4e73-287c-1275-d386e8f55ed6/pr_source.png/392x696bb.png","https://is1-ssl.mzstatic.com/image/thumb/Purple123/v4/f0/00/46/f000464e-b85e-b8e6-bc52-532da127c078/pr_source.png/392x696bb.png","https://is1-ssl.mzstatic.com/image/thumb/Purple123/v4/20/85/13/208513c1-9a69-a5e1-2546-f7501c4d3cf6/pr_source.png/392x696bb.png"],"developer_name":"Shenzhen Mango Future Technology Co., Ltd.","editors_choice":false,"url":"https://apptierlist.com/apps/simply-tuner-violin-cello-1300058854/","api_url":"https://apptierlist.com/api/v1/apps/simply-tuner-violin-cello-1300058854"},"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":"instrument-tuning","list_name":"instrument tuning","status":"active","review_status":"checked","position":30,"tier":"D","score":57.8,"components":{"rating":76.1,"votes":75.6,"rank":79.4,"recency":0},"ranks":[{"country":"us","rank":9},{"country":"ca","rank":9},{"country":"au","rank":6},{"country":"gb","rank":23}],"verdicts":[{"verdict":"keep","reason":"Built as a tuner for violin, viola and cello that detects pitch from open strings and gives tuning instructions.","verifier":"claude-sonnet-5-5","decided_at":"2026-10-19T09:04:11.709Z","attempts":1,"current":true},{"verdict":"keep","reason":"Its main purpose is tuning violin, viola and cello by detecting the pitch of each played string. It is a dedicated tuner, not a metronome or a guitar-only tuner.","verifier":"list check","decided_at":"2026-10-19T09:04:11.709Z","attempts":1,"current":true}]}],"history":[{"id":188672,"at":"2026-10-21T03:48:12.685Z","kind":"tier_changed","list":"instrument-tuning","app_store_id":1300058854,"app":"simply-tuner-violin-cello-1300058854","from":"F","to":"D","reason":"score 37.8 to 57.8","job":"rescore"},{"id":174272,"at":"2026-10-19T09:17:11.718Z","kind":"tier_changed","list":"instrument-tuning","app_store_id":1300058854,"app":"simply-tuner-violin-cello-1300058854","from":null,"to":"F","reason":"score 37.8","job":"rescore"},{"id":173395,"at":"2026-10-19T09:04:11.709Z","kind":"membership_added","list":"instrument-tuning","app_store_id":1300058854,"app":"simply-tuner-violin-cello-1300058854","from":null,"to":"active","reason":"Built as a tuner for violin, viola and cello that detects pitch from open strings and gives tuning instructions.","job":"shadow"},{"id":168466,"at":"2026-10-19T04:05:11.796Z","kind":"app_added","list":null,"app_store_id":1300058854,"app":"simply-tuner-violin-cello-1300058854","from":null,"to":null,"reason":"discovered","job":"import"}],"data_version":41715,"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/"}}