{"schema_version":"1.0","generated_at":"2026-10-22T05:31:27.521Z","app":{"app_store_id":443932954,"slug":"calculator-for-ipad-443932954","name":"Calculator for iPad!","subtitle":"Basic & Scientific Calculator","icon_url":"https://is1-ssl.mzstatic.com/image/thumb/Purple124/v4/21/ca/78/21ca787b-3e90-ed2e-b0f6-40b3d70ec19e/AppIcon-1x_U007emarketing-0-7-0-0-85-220.png/512x512bb.jpg","store_url":"https://apps.apple.com/us/app/calculator-for-ipad/id443932954?uo=4","price":0,"currency":"USD","rating":4.69435,"rating_count":61125,"in_app_purchases":false,"recent_rating":null,"recent_review_count":null,"reviews_checked_at":"2026-10-15T02:21:53.110Z","primary_genre":"Utilities","version_date":"2020-12-09T15:23:16Z","updated_at":"2026-10-21T17:02:11.892Z","stale":false,"missing_since":null,"one_liner":"Standard and scientific calculator app for iPad and iPhone with a Notes tab, calculation history and a customizable…","verified_maker":false,"maker_site":null,"file_size_bytes":73940992,"minimum_os":"9.0","content_rating":"4+","language_count":22,"screenshots":["https://is1-ssl.mzstatic.com/image/thumb/Purple123/v4/8e/f0/d6/8ef0d64d-997b-b0d8-bea8-1b47062117e5/mzl.htlqpwwq.png/406x228bb.png","https://is1-ssl.mzstatic.com/image/thumb/Purple123/v4/7d/11/00/7d11004c-b2a8-80e4-ae42-2ae16b242fb2/mzl.dnltfyul.png/406x228bb.png","https://is1-ssl.mzstatic.com/image/thumb/Purple123/v4/c4/6c/b6/c46cb66d-653e-3695-3158-8b17e39eb1b0/mzl.oslajcqr.png/392x696bb.png"],"developer_name":"7th Gear","editors_choice":false,"url":"https://apptierlist.com/apps/calculator-for-ipad-443932954/","api_url":"https://apptierlist.com/api/v1/apps/calculator-for-ipad-443932954"},"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":"scientific-calculation","list_name":"scientific calculation","status":"active","review_status":"checked","position":23,"tier":"C","score":67.9,"components":{"rating":93.3,"votes":89.4,"rank":89,"recency":0},"ranks":[{"country":"ca","rank":10},{"country":"au","rank":12},{"country":"us","rank":19},{"country":"gb","rank":12},{"country":"de","rank":7}],"verdicts":[{"verdict":"keep","reason":"It includes a full scientific calculator with more than 30 scientific operations, nested parentheses and high precision, which makes it a real advanced-math calculator.","verifier":"list check","decided_at":"2026-10-17T00:51:13.395Z","attempts":1,"current":true},{"verdict":"keep","reason":"Includes a scientific calculator mode with more than 30 scientific operations, marketed for math students and professionals.","verifier":"claude-sonnet-5-5","decided_at":"2026-10-09T03:59:53.925Z","attempts":1,"current":false}]},{"list":"calculation","list_name":"calculation","status":"active","review_status":"checked","position":36,"tier":"C","score":69.9,"components":{"rating":93.3,"votes":89.4,"rank":97,"recency":0},"ranks":[{"country":"us","rank":5},{"country":"gb","rank":3},{"country":"ca","rank":2},{"country":"au","rank":2},{"country":"de","rank":8}],"verdicts":[{"verdict":"keep","reason":"It is a general calculator app with a standard calculator for everyday arithmetic, not only a scientific one, so it fits alongside the other calculators.","verifier":"list check","decided_at":"2026-10-17T00:51:13.395Z","attempts":1,"current":true},{"verdict":"keep","reason":"Built as a standard calculator for everyday arithmetic, with history, nested parentheses and 75+ digit accuracy.","verifier":"claude-sonnet-5-5","decided_at":"2026-10-09T03:59:53.925Z","attempts":1,"current":false}]}],"history":[{"id":135096,"at":"2026-10-17T01:03:13.386Z","kind":"tier_changed","list":"calculation","app_store_id":443932954,"app":"calculator-for-ipad-443932954","from":null,"to":"C","reason":"checked from the list's side: ranked #22","job":"rescore"},{"id":134974,"at":"2026-10-17T01:03:13.386Z","kind":"tier_changed","list":"scientific-calculation","app_store_id":443932954,"app":"calculator-for-ipad-443932954","from":null,"to":"C","reason":"checked from the list's side: ranked #15","job":"rescore"},{"id":107647,"at":"2026-10-15T15:15:01.036Z","kind":"tier_changed","list":"calculation","app_store_id":443932954,"app":"calculator-for-ipad-443932954","from":"C","to":null,"reason":"under review: not checked from the list's side yet","job":"rescore"},{"id":106904,"at":"2026-10-15T15:15:01.036Z","kind":"tier_changed","list":"scientific-calculation","app_store_id":443932954,"app":"calculator-for-ipad-443932954","from":"C","to":null,"reason":"under review: not checked from the list's side yet","job":"rescore"},{"id":92287,"at":"2026-10-15T03:19:53.110Z","kind":"tier_changed","list":"calculation","app_store_id":443932954,"app":"calculator-for-ipad-443932954","from":"B","to":"C","reason":"rank shift: #16, score unchanged at 70.2, tier full (a quarter of the list)","job":"rescore"},{"id":86575,"at":"2026-10-14T18:27:33.753Z","kind":"tier_changed","list":"scientific-calculation","app_store_id":443932954,"app":"calculator-for-ipad-443932954","from":"D","to":"C","reason":"score 69.7","job":"rescore"},{"id":80258,"at":"2026-10-14T13:51:19.783Z","kind":"tier_changed","list":"calculation","app_store_id":443932954,"app":"calculator-for-ipad-443932954","from":"C","to":"B","reason":"score 70","job":"rescore"},{"id":77269,"at":"2026-10-14T11:36:53.707Z","kind":"tier_changed","list":"calculation","app_store_id":443932954,"app":"calculator-for-ipad-443932954","from":"D","to":"C","reason":"score 70","job":"rescore"},{"id":72070,"at":"2026-10-13T17:14:54.021Z","kind":"tier_changed","list":"scientific-calculation","app_store_id":443932954,"app":"calculator-for-ipad-443932954","from":"F","to":"D","reason":"score 69.7","job":"rescore"},{"id":67146,"at":"2026-10-13T00:39:54.712Z","kind":"tier_changed","list":"calculation","app_store_id":443932954,"app":"calculator-for-ipad-443932954","from":"C","to":"D","reason":"score 70.3","job":"rescore"},{"id":65676,"at":"2026-10-12T19:28:52.712Z","kind":"tier_changed","list":"scientific-calculation","app_store_id":443932954,"app":"calculator-for-ipad-443932954","from":"D","to":"F","reason":"score 60.5","job":"rescore"},{"id":52612,"at":"2026-10-10T14:52:02.153Z","kind":"tier_changed","list":"scientific-calculation","app_store_id":443932954,"app":"calculator-for-ipad-443932954","from":null,"to":"D","reason":"score 60.5","job":"rescore"},{"id":44878,"at":"2026-10-09T15:28:33.758Z","kind":"tier_changed","list":"calculation","app_store_id":443932954,"app":"calculator-for-ipad-443932954","from":"F","to":"C","reason":"score 68.8","job":"rescore"},{"id":37468,"at":"2026-10-09T07:06:03.430Z","kind":"tier_changed","list":"calculation","app_store_id":443932954,"app":"calculator-for-ipad-443932954","from":null,"to":"F","reason":"score 45.4","job":"rescore"},{"id":31217,"at":"2026-10-09T03:59:53.925Z","kind":"membership_added","list":"calculation","app_store_id":443932954,"app":"calculator-for-ipad-443932954","from":null,"to":"active","reason":"Built as a standard calculator for everyday arithmetic, with history, nested parentheses and 75+ digit accuracy.","job":"fill"},{"id":31216,"at":"2026-10-09T03:59:53.925Z","kind":"membership_added","list":"scientific-calculation","app_store_id":443932954,"app":"calculator-for-ipad-443932954","from":null,"to":"active","reason":"Includes a scientific calculator mode with more than 30 scientific operations, marketed for math students and professionals.","job":"fill"},{"id":23712,"at":"2026-10-09T03:10:04.928Z","kind":"app_added","list":null,"app_store_id":443932954,"app":"calculator-for-ipad-443932954","from":null,"to":null,"reason":"discovered","job":"fill"}],"data_version":40604,"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/"}}