{"schema_version":"1.0","generated_at":"2026-10-23T10:59:22.818Z","app":{"app_store_id":1485543216,"slug":"decibel-sound-level-meter-1485543216","name":"Decibel - sound level meter","subtitle":"Spectrum frequency analyzer","icon_url":"https://is1-ssl.mzstatic.com/image/thumb/Purple113/v4/5a/22/57/5a225786-8315-6214-bf32-3358afaea5d1/AppIcon-0-0-1x_U007emarketing-0-0-0-7-0-0-sRGB-0-0-0-GLES2_U002c0-512MB-85-220-0-0.png/512x512bb.jpg","store_url":"https://apps.apple.com/us/app/decibel-sound-level-meter/id1485543216?uo=4","price":0,"currency":"USD","rating":4.56222,"rating_count":4708,"in_app_purchases":true,"recent_rating":null,"recent_review_count":null,"reviews_checked_at":null,"primary_genre":"Utilities","version_date":"2020-05-13T08:20:04Z","updated_at":"2026-10-22T16:27:13.183Z","stale":false,"missing_since":null,"one_liner":"Measures sound pressure levels and frequency spectrum, with a reference chart to compare recordings.","verified_maker":false,"maker_site":null,"file_size_bytes":28136448,"minimum_os":"12.0","content_rating":"4+","language_count":1,"screenshots":["https://is1-ssl.mzstatic.com/image/thumb/Purple123/v4/d1/dd/16/d1dd1604-066a-bdf7-2a1d-b0985aaa4121/pr_source.jpg/392x696bb.jpg","https://is1-ssl.mzstatic.com/image/thumb/Purple113/v4/d1/a1/84/d1a184e9-0939-1e31-4fc8-644053605c98/pr_source.jpg/392x696bb.jpg","https://is1-ssl.mzstatic.com/image/thumb/Purple113/v4/9b/b0/36/9bb036d6-0de7-ac96-2359-4eeda200999a/pr_source.jpg/392x696bb.jpg","https://is1-ssl.mzstatic.com/image/thumb/Purple113/v4/33/d2/f7/33d2f7f0-5f2a-616f-573c-f0a7b2c6b449/pr_source.jpg/392x696bb.jpg"],"developer_name":"AppRover","editors_choice":false,"url":"https://apptierlist.com/apps/decibel-sound-level-meter-1485543216/","api_url":"https://apptierlist.com/api/v1/apps/decibel-sound-level-meter-1485543216"},"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":"sound-measurement","list_name":"sound measurement","status":"active","review_status":"checked","position":9,"tier":"C","score":66.1,"components":{"rating":91.1,"votes":79.4,"rank":94,"recency":0},"ranks":[{"country":"us","rank":8},{"country":"gb","rank":9},{"country":"ca","rank":6},{"country":"au","rank":5},{"country":"de","rank":7}],"verdicts":[{"verdict":"keep","reason":"A sound level meter that measures ambient sound pressure in dB with dBA/B/C/Z weighting and a reference chart.","verifier":"claude-sonnet-5-5","decided_at":"2026-10-18T03:48:11.703Z","attempts":1,"current":true},{"verdict":"keep","reason":"The app is a dedicated sound level meter. It measures live sound pressure in dBA, dBB, dBC and dBZ and shows the spectrum, so it matches the list's core intent.","verifier":"list check","decided_at":"2026-10-18T03:48:11.703Z","attempts":1,"current":true}]}],"history":[{"id":193600,"at":"2026-10-22T10:35:12.511Z","kind":"tier_changed","list":"sound-measurement","app_store_id":1485543216,"app":"decibel-sound-level-meter-1485543216","from":null,"to":"C","reason":"score 42.6 to 62.7","job":"rescore"},{"id":152439,"at":"2026-10-18T03:48:11.703Z","kind":"membership_added","list":"sound-measurement","app_store_id":1485543216,"app":"decibel-sound-level-meter-1485543216","from":null,"to":"active","reason":"A sound level meter that measures ambient sound pressure in dB with dBA/B/C/Z weighting and a reference chart.","job":"shadow"},{"id":143652,"at":"2026-10-17T06:43:13.386Z","kind":"app_added","list":null,"app_store_id":1485543216,"app":"decibel-sound-level-meter-1485543216","from":null,"to":null,"reason":"discovered","job":"import"}],"data_version":41736,"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/"}}