{"schema_version":"1.0","generated_at":"2026-10-21T04:01:04.872Z","app":{"app_store_id":554836784,"slug":"calculator-554836784","name":"Calculator·","subtitle":"Big Basic Calculator","icon_url":"https://is1-ssl.mzstatic.com/image/thumb/Purple211/v4/d4/7e/c3/d47ec39b-00a1-c18c-bea8-16473b01df93/AppIcon-0-0-1x_U007emarketing-0-11-0-85-220.png/512x512bb.jpg","store_url":"https://apps.apple.com/us/app/calculator/id554836784?uo=4","price":0,"currency":"USD","rating":4.85048,"rating_count":34430,"in_app_purchases":true,"recent_rating":null,"recent_review_count":null,"reviews_checked_at":"2026-10-16T08:57:49.459Z","primary_genre":"Utilities","version_date":"2026-09-25T01:37:03Z","updated_at":"2026-10-20T17:28:13.749Z","stale":false,"missing_since":null,"one_liner":"A basic calculator app with add, subtract, multiply, divide and percent, plus color schemes and Apple Watch support.","verified_maker":false,"maker_site":null,"file_size_bytes":49717248,"minimum_os":"15.0","content_rating":"4+","language_count":16,"screenshots":["https://is1-ssl.mzstatic.com/image/thumb/Purple124/v4/53/3e/25/533e2531-08f3-58e2-bc02-fdf3c8c10d57/mzl.uvtezlgp.png/392x696bb.png","https://is1-ssl.mzstatic.com/image/thumb/Purple124/v4/a6/f4/0e/a6f40e72-ae95-5136-2c1e-7ce4b223085a/mzl.muqmwmvp.png/392x696bb.png","https://is1-ssl.mzstatic.com/image/thumb/Purple114/v4/1c/0d/8e/1c0d8e39-ef9c-6d48-acf8-109b033a9ab3/mzl.dnfrfnld.png/392x696bb.png","https://is1-ssl.mzstatic.com/image/thumb/Purple114/v4/bd/3a/b7/bd3ab7f7-ea1c-1108-4502-0c06ee6b3c89/mzl.qblrlbrb.png/392x696bb.png","https://is1-ssl.mzstatic.com/image/thumb/Purple114/v4/4d/40/87/4d40874b-2cfe-d3fe-961e-4cf37196e7ad/mzl.fvuexumu.png/392x696bb.png"],"developer_name":"Tim O's Studios, LLC","editors_choice":false,"url":"https://apptierlist.com/apps/calculator-554836784/","api_url":"https://apptierlist.com/api/v1/apps/calculator-554836784"},"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":"calculation","list_name":"calculation","status":"active","review_status":"checked","position":4,"tier":"S","score":94.3,"components":{"rating":95.8,"votes":88.8,"rank":92.6,"recency":100},"ranks":[{"country":"gb","rank":12},{"country":"ca","rank":3},{"country":"de","rank":17},{"country":"us","rank":6},{"country":"au","rank":4}],"verdicts":[{"verdict":"keep","reason":"A basic everyday arithmetic calculator (add, subtract, multiply, divide, percent) is exactly what this list covers. It is not mainly a scientific calculator, a converter or a solver.","verifier":"list check","decided_at":"2026-10-16T02:12:51.810Z","attempts":1,"current":true},{"verdict":"keep","reason":"It is a no-frills calculator for everyday arithmetic: add, subtract, multiply, divide, and percent.","verifier":"claude-sonnet-5-5","decided_at":"2026-10-13T00:32:53.110Z","attempts":1,"current":false}]}],"history":[{"id":116302,"at":"2026-10-16T02:24:51.811Z","kind":"tier_changed","list":"calculation","app_store_id":554836784,"app":"calculator-554836784","from":null,"to":"S","reason":"checked from the list's side: ranked #2","job":"rescore"},{"id":107653,"at":"2026-10-15T15:15:01.036Z","kind":"tier_changed","list":"calculation","app_store_id":554836784,"app":"calculator-554836784","from":"S","to":null,"reason":"under review: not checked from the list's side yet","job":"rescore"},{"id":77271,"at":"2026-10-14T11:36:53.707Z","kind":"tier_changed","list":"calculation","app_store_id":554836784,"app":"calculator-554836784","from":"A","to":"S","reason":"score 94.3","job":"rescore"},{"id":71825,"at":"2026-10-13T15:56:57.522Z","kind":"tier_changed","list":"calculation","app_store_id":554836784,"app":"calculator-554836784","from":"C","to":"A","reason":"score 94.3","job":"rescore"},{"id":67147,"at":"2026-10-13T00:39:54.712Z","kind":"tier_changed","list":"calculation","app_store_id":554836784,"app":"calculator-554836784","from":null,"to":"C","reason":"score 70.6","job":"rescore"},{"id":67075,"at":"2026-10-13T00:32:53.110Z","kind":"membership_added","list":"calculation","app_store_id":554836784,"app":"calculator-554836784","from":null,"to":"active","reason":"It is a no-frills calculator for everyday arithmetic: add, subtract, multiply, divide, and percent.","job":"shadow"},{"id":63771,"at":"2026-10-12T17:54:56.722Z","kind":"app_added","list":null,"app_store_id":554836784,"app":"calculator-554836784","from":null,"to":null,"reason":"discovered","job":"import"}],"data_version":39534,"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/"}}