{"app_store_id":1459712793,"slug":"calculate84-1459712793","name":"Calculate84","subtitle":"Intended for use with TI-84","icon_url":"https://is1-ssl.mzstatic.com/image/thumb/Purple211/v4/48/60/db/4860dbfb-f01d-654c-3e15-d847165169cd/AppIcon-0-0-1x_U007epad-0-0-0-1-0-85-220.png/512x512bb.jpg","store_url":"https://apps.apple.com/us/app/calculate84/id1459712793?uo=4","price":0,"currency":"USD","rating":4.7755,"rating_count":54078,"in_app_purchases":true,"recent_rating":3.5,"recent_review_count":20,"reviews_checked_at":"2026-10-12T16:46:52.416Z","primary_genre":"Education","version_date":"2026-08-31T01:00:23Z","updated_at":"2026-10-19T14:27:11.608Z","stale":false,"missing_since":null,"one_liner":"Graphing calculator app for iPhone with touch controls, intended for use with the TI-84.","verified_maker":false,"maker_site":null,"file_size_bytes":74193920,"minimum_os":"18.0","content_rating":"12+","language_count":1,"screenshots":["https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/81/1f/7c/811f7cdb-4e9c-4117-efcf-1e987532e696/iPhone_1242x2208_-_01_Graph_Edit.jpg/392x696bb.jpg","https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/a4/62/e2/a462e274-e576-5eaf-8cb9-b824dc3de3f1/iPhone_1242x2208_-_02_Graphing.jpg/392x696bb.jpg","https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/9c/4c/1a/9c4c1afa-658b-3fd8-b371-c4c3329102a4/iPhone_1242x2208_-_03_Equation_Table.jpg/392x696bb.jpg","https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/94/a5/1e/94a51ed4-8c2d-1b21-1e7f-e587c1350873/iPhone_1242x2208_-_04_Search.jpg/392x696bb.jpg"],"developer_name":"Century Light LLC","editors_choice":false,"url":"https://apptierlist.com/apps/calculate84-1459712793/","api_url":"https://apptierlist.com/api/v1/apps/calculate84-1459712793","schema_version":"1.0","generated_at":"2026-10-20T17:26:10.991Z","data_as_of":"2026-10-20T14:54:12.948Z","description":"Graphing made for iPhone\n\nCalculate84 brings the graphing calculator experience to iPhone with a fast, touch-friendly design.\n\nWhat you can do:\n• Plot and explore graphs with smooth touch controls\n• Find familiar calculator functions quickly\n• Scroll naturally through equations and results\n• Get clearer, more helpful error messages\n• Send feedback directly from the app\n\nWhy we built Calculate84\n\nWe relied on graphing calculators ourselves and wanted an app that felt easier to use on a modern phone. Before launch, we worked with students to refine the experience, and we continue improving it based on user feedback.\n\nSend feedback\n\nTap the red Feedback button in the app.\n\nTerms of Use (EULA): https://calculate84.com/terms-of-use","facts":{"developer_id":1459712792,"developer_url":"https://www.calculate84.com","first_released":"2019-08-17T07:00:00Z","support_url":"https://www.calculate84.com/support","privacy_url":"https://www.calculate84.com/privacy-policy","website_url":"https://www.calculate84.com/","app_version":"3.0.4","release_notes":"Improved equation history and result formatting, more reliable Pro purchases, better accessibility, and fixes for math input and stability.","rating_current_version":4.7755,"rating_count_current_version":54078,"star_counts":[1311,391,984,3755,47637],"genres":["Education","Productivity"],"languages":["EN"],"content_advisories":null,"device_families":["mac","iphone","ipad"],"chart":{"name":"top-free Education","position":177}},"freshness":{"apple_read_at":"2026-10-19T14:27:11.608Z","catalog_read_at":"2026-10-19T14:27:11.608Z","reviews_checked_at":"2026-10-12T16:46:52.416Z","summary_written_at":"2026-10-19T14:29:11.594Z","placed_at":"2026-10-09T03:59:53.925Z","scored_at":"2026-10-20T14:54:12.948Z"},"editorial":{"one_liner":"Graphing calculator app for iPhone with touch controls, intended for use with the TI-84.","what_is":"Calculate84 is a graphing calculator app for iPhone, with a subtitle stating it is intended for use with the TI-84. The listing describes touch-based graph plotting and exploration, quick access to familiar calculator functions, and natural scrolling through equations and results. It also mentions clearer error messages and the ability to send feedback from within the app.","good_for":["Plotting and exploring graphs on an iPhone","Working through equations and results with touch scrolling","Sending feedback to the developer from inside the app"],"pricing":"Calculate84 is free to download, with in-app purchases on the App Store.","faq":[{"q":"Is Calculate84 free?","a":"The app is free to download."},{"q":"Is Calculate84 made by or affiliated with Texas Instruments?","a":"Not stated on the App Store. The subtitle says the app is intended for use with the TI-84."},{"q":"How do I send feedback or read the terms?","a":"Tap the red Feedback button in the app. The Terms of Use (EULA) are at https://calculate84.com/terms-of-use."}],"model":"claude-haiku-5-5","created_at":"2026-10-19T14:29:11.594Z"},"memberships":[{"list":"graphing","list_name":"graphing","list_status":"active","list_url":"https://apptierlist.com/best/graphing/","position":1,"tier":"S","score":93.2,"components":{"rating":95.5,"votes":87.4,"rank":89.8,"recency":100},"status":"active","review_status":"checked","list_ranking_status":"ranked","confidence":"normal","judged_at":"2026-10-09T03:59:53.925Z"}],"main_list":"graphing","claim":{"status":"none","verified":false,"site_url":null,"verified_via":null,"verified_domain":null},"history":[{"id":163101,"at":"2026-10-18T16:31:11.807Z","kind":"tier_changed","list":"graphing","app_store_id":1459712793,"app":"calculate84-1459712793","from":null,"to":"S","reason":"score 70.7 to 93.2","job":"rescore"},{"id":134436,"at":"2026-10-17T00:36:13.387Z","kind":"membership_removed","list":"calculation","app_store_id":1459712793,"app":"calculate84-1459712793","from":"active","to":"removed","reason":"list-side recheck: It is a TI-84-style graphing calculator. 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