{"app_store_id":458535809,"slug":"calculator-458535809","name":"Calculator ∞","subtitle":"The Best Scientific Calculator","icon_url":"https://is1-ssl.mzstatic.com/image/thumb/Purple211/v4/ca/01/cd/ca01cde7-eb4b-0a9c-0df1-c22063bff93d/AppIcon-0-0-1x_U007epad-0-0-0-1-0-0-0-85-220.png/512x512bb.jpg","store_url":"https://apps.apple.com/us/app/calculator/id458535809?uo=4","price":5.99,"currency":"USD","rating":4.69785,"rating_count":6381,"in_app_purchases":true,"recent_rating":null,"recent_review_count":null,"reviews_checked_at":null,"primary_genre":"Education","version_date":"2026-03-12T09:02:19Z","updated_at":"2026-10-21T00:31:13.014Z","stale":false,"missing_since":null,"one_liner":"Scientific calculator for iPhone and iPad with algebra, 2D graphing, matrix, base-N and unit conversion tools.","verified_maker":false,"maker_site":null,"file_size_bytes":48088064,"minimum_os":"12.1","content_rating":"4+","language_count":15,"screenshots":["https://is1-ssl.mzstatic.com/image/thumb/Purple126/v4/8b/1e/d4/8b1ed446-3179-d008-86dc-e5ff29d75867/75ce4b26-f223-4dde-93a3-44ee15ff3f61_IP8_Scr1.jpg/392x696bb.jpg","https://is1-ssl.mzstatic.com/image/thumb/Purple126/v4/1b/17/a9/1b17a9ea-0729-850f-4998-c4d8a312b6c8/58b0e5aa-208e-4bcc-9c29-e527b9788790_IP8_Scr2.jpg/392x696bb.jpg","https://is1-ssl.mzstatic.com/image/thumb/Purple126/v4/5b/0f/77/5b0f778c-5b68-68be-b043-399bfe620d74/bbb9802a-ed17-4e30-a94c-71c5c205f890_IP8_Scr3.jpg/392x696bb.jpg","https://is1-ssl.mzstatic.com/image/thumb/Purple116/v4/10/6d/2e/106d2e00-65ea-07da-6e82-0c1dcd4f32c5/51bf205e-3d4a-46b2-a1df-fb5539d29731_IP8_Scr4.jpg/392x696bb.jpg","https://is1-ssl.mzstatic.com/image/thumb/Purple116/v4/dc/80/72/dc8072fc-c570-babf-865f-a952289a9d4c/be4a6fdb-c494-4f9e-9bfe-4c3ac714b218_IP8_Scr5.jpg/392x696bb.jpg","https://is1-ssl.mzstatic.com/image/thumb/Purple126/v4/f8/5f/60/f85f6005-ae7d-af0e-3c9b-16eda5b63e46/ef4eb03b-5805-42be-a5e8-802a4e5ce6be_IP8_Scr6.jpg/392x696bb.jpg","https://is1-ssl.mzstatic.com/image/thumb/Purple116/v4/f3/8d/d0/f38dd0ae-cb55-b4e9-cdb9-08cef26555e4/4a6e1506-c1bc-4752-91e4-f0f6da2d0102_IP8_Scr7.jpg/392x696bb.jpg","https://is1-ssl.mzstatic.com/image/thumb/Purple126/v4/4f/b7/6c/4fb76c03-e2f8-ac32-3e38-1ec0082be6a9/21802bf2-11a8-4f96-b94f-6af203df8546_IP8_Scr8.jpg/392x696bb.jpg"],"developer_name":"An Truong","editors_choice":false,"url":"https://apptierlist.com/apps/calculator-458535809/","api_url":"https://apptierlist.com/api/v1/apps/calculator-458535809","schema_version":"1.0","generated_at":"2026-10-21T08:15:09.079Z","data_as_of":"2026-10-21T03:01:21.335Z","description":"◉ Top Paid Educational Apps in US, UK, AUS, GER,...\n◉ QAppReview.com Rated 9/10\n◉ Users Reviewed: \"Top Class Calculator !\"\n\nThe BEST Alternative to Graphing TI-83, TI-84, TI-89, Casio FX, Sharp EL,...\n\nCalculator Infinity (∞) – The sleek, multi-function calculator for iPhone/iPad is proud to offer a variety of features to satisfy all ranges of customers: The App possesses a powerful math core and algebra engine with mathematical display support, making it a viable tool for everyone from those looking for basic calculation to more advanced users, such as scientific computation, programmers, engineers, and math students. Calculator ∞ makes available everything you need – including a user manual and tutorial video clips – so you can master the app in a matter of minutes!\n\n◉ Official Website: http://iPhoneCalculator.com\n\n◉ ADVANCED FEATURES:\n▸ Step-by-step solution (Hints)\n▸ Math Photos Solver *\n▸ Handwriting Recognition *\n▸ Math Problem Solver (AI) *\n▸ Well Organized of Functions\n\n◉ GENERAL FEATURES:\n▸ Universal Calculator App 1\n▸ Support Multitasking (iPad)\n▸ Support Wireless KB2\n▸ Mathematical Display\n▸ Edit & Export Expression/Result\n▸ History Tape View\n▸ Basic Calculations (+, -, x, ÷, %, Abs,...)\n▸ Advanced Functions (Sin, Cos, Ln, X!, ^, √,...)\n▸ Memory Variables (Including X,Y,Z,M)\n▸ F(x) Customize Functions (F1, F2, F3)\n▸ Unit Converter (40 Categories, 1000+ Units)\n▸ Over 40 Common Constants\n▸ Fraction and Degree/Angle Calculation\n▸ Numeric Integral & Derivative Calculation\n▸ Dual Skins (Silver Light & Carbon+)\n▸ No Ads\n\n◉ ALGEBRA FEATURES:\n▸ Big Integer & Rational Number (Up to 500!)\n▸ Expand and Factor Polynomials\n▸ Indefinite integral & Derivative\n▸ Two-side Limit\n▸ Taylor Series Expansion\n▸ Hints and Solutions\n\n◉ 2D GRAPH:\n▸ Simultaneous Graph\n▸ Smooth Zoom & Transformation\n▸ Support F(X,Y) = 0. E.g. Sin(X) + Cos(Y) = 0.\n▸ Conic Equations (Parabola, Hyperbola, Ellipse)\n▸ Get Intersections, Min, Max & Special Points\n\n◉ CLOUD COMPUTING:\n▸ Advanced Two-side Limit\n▸ Advanced Indefinite Integral\n▸ General Equations (Accurate Roots)\n\n◉ EQUATIONS SOLVERS:\n▸ General Equations (Numerical Roots)\n▸ Quadratic & Cubic Equations\n▸ System of Linear Equations (2 & 3 Unknowns)\n\n◉ REGRESSION & STATISTICS:\n▸ Modify & Sort Data\n▸ Single Variable Statistics\n▸ Linear, Quadratic, Power Regression\n▸ Logarithmic & Exponential Regression\n\n◉ COMPLEX CALCULATION:\n▸ Polar & Rectangular Notation\n▸ Argument, Conjugate Function\n▸ Trigonometry Functions\n▸ Logarithmic & Exponential Functions\n\n◉ MATRIX/VECTOR MODE:\n▸ Support Up to 7x7 Matrix\n▸ Support Complex Numbers\n▸ Cross, Dot Product\n▸ Det, Inverse, Transpose\n▸ Cramer’s Rule Solver\n▸ Numerical Real Eigenvalues\n\n◉ NUMBER BASE-N MODE:\n▸ 15 Different Bases\n▸ Support Up to 32 Bits Integer\n▸ Binary Operation (NOT, OR, XOR, 2’S, ...)\n\n◉ MULTIPLE LANGUAGES:\n▸ English, Spanish, German,\n▸ French, Japanese, Chinese\n\n(*) In-App-Purchase is required\n1: Include iPhone SE, PRO, PRO-MAX, iPad...\n2: Standard English KB\n\nCalculator ∞ is not only the Calculator\nIT IS THE MUST HAVE CALCULATOR !!!\n\nWe love your feedback, Thanks a lot !\nPlease contact us for questions, bugs/crash reports, conversion requirements, etc....\n\nTerms of Service:\nhttps://iphonecalculator.com/terms-of-service/","facts":{"developer_id":445261166,"developer_url":"http://iPhoneCalculator.com/","first_released":"2011-09-16T02:42:24Z","support_url":"http://iphonecalculator.com/support/","privacy_url":"https://iphonecalculator.com/calculator-privacy-policy/","website_url":"http://iphonecalculator.com/","app_version":"7.1","release_notes":"▸ Support F(X,Y) = 0. E.g. Sin(X) + Cos(Y) = 0.\n▸ Math Problem Solver\n▸ Stability Improvements\n▸ Minor Bug Fixes.","rating_current_version":4.69785,"rating_count_current_version":6381,"star_counts":[234,63,113,577,5392],"genres":["Education","Utilities"],"languages":["AR","NL","EN","FR","DE","IT","JA","KO","PT","RU","ZH","ES","TH","ZH","TR"],"content_advisories":null,"device_families":["iphone","ipad","ipod"],"chart":null},"freshness":{"apple_read_at":"2026-10-21T00:31:13.014Z","catalog_read_at":"2026-10-19T08:04:12.214Z","reviews_checked_at":null,"summary_written_at":"2026-10-19T12:03:11.599Z","placed_at":"2026-10-17T02:05:13.395Z","scored_at":"2026-10-21T03:01:21.335Z"},"editorial":{"one_liner":"Scientific calculator for iPhone and iPad with algebra, 2D graphing, matrix, base-N and unit conversion tools.","what_is":"Calculator ∞ is a paid Education app listed at $5.99 USD for iPhone and iPad. It covers basic and scientific calculation, algebra, 2D graphing, statistics, matrix and vector modes, base-N mode, and a unit converter. Math Photos Solver, Handwriting Recognition and Math Problem Solver (AI) are marked as requiring an in-app purchase.","good_for":["Students working on algebra, calculus or statistics problems","Engineers or programmers needing matrix, base-N or unit conversion","Users wanting a graphing calculator on iPhone or iPad"],"pricing":"Calculator ∞ is $5.99 to download, with in-app purchases on the App Store.","faq":[{"q":"Does it work on iPad?","a":"The listing describes a universal app for iPhone and iPad, notes support for multitasking on iPad, and lists iPhone SE, PRO, PRO-MAX and iPad as included devices."},{"q":"Are there ads, and what requires in-app purchase?","a":"The listing states No Ads. Math Photos Solver, Handwriting Recognition and Math Problem Solver (AI) are marked as requiring an in-app purchase."},{"q":"Which languages are supported?","a":"English, Spanish, German, French, Japanese and Chinese under multiple languages. It also lists step-by-step hints and solutions as advanced features."}],"model":"claude-haiku-5-5","created_at":"2026-10-19T12:03:11.599Z"},"memberships":[{"list":"scientific-calculation","list_name":"scientific calculation","list_status":"active","list_url":"https://apptierlist.com/best/scientific-calculation/","position":15,"tier":"B","score":80.8,"components":{"rating":93.4,"votes":79.6,"rank":76.8,"recency":73.4},"status":"active","review_status":"checked","list_ranking_status":"ranked","confidence":"normal","judged_at":"2026-10-17T02:05:13.395Z"},{"list":"calculation","list_name":"calculation","list_status":"active","list_url":"https://apptierlist.com/best/calculation/","position":27,"tier":"B","score":75.8,"components":{"rating":93.4,"votes":79.6,"rank":57,"recency":73.4},"status":"active","review_status":"checked","list_ranking_status":"ranked","confidence":"normal","judged_at":"2026-10-17T02:05:13.395Z"}],"main_list":"scientific-calculation","claim":{"status":"none","verified":false,"site_url":null,"verified_via":null,"verified_domain":null},"history":[{"id":150540,"at":"2026-10-18T02:29:11.607Z","kind":"tier_changed","list":"scientific-calculation","app_store_id":458535809,"app":"calculator-458535809","from":"A","to":"B","reason":"rank shift: #14, score unchanged at 80.4, tier full (a quarter of the list)","job":"rescore"},{"id":149806,"at":"2026-10-18T01:59:11.543Z","kind":"tier_changed","list":"scientific-calculation","app_store_id":458535809,"app":"calculator-458535809","from":"C","to":"A","reason":"score 61.5 to 80.4","job":"rescore"},{"id":148824,"at":"2026-10-17T23:41:11.543Z","kind":"tier_changed","list":"calculation","app_store_id":458535809,"app":"calculator-458535809","from":"D","to":"B","reason":"score 61.5 to 75.9","job":"rescore"},{"id":137378,"at":"2026-10-17T02:50:13.397Z","kind":"tier_changed","list":"scientific-calculation","app_store_id":458535809,"app":"calculator-458535809","from":null,"to":"C","reason":"score 61.5","job":"rescore"},{"id":136867,"at":"2026-10-17T02:20:13.401Z","kind":"tier_changed","list":"calculation","app_store_id":458535809,"app":"calculator-458535809","from":null,"to":"D","reason":"score 61.5","job":"rescore"},{"id":136550,"at":"2026-10-17T02:05:13.395Z","kind":"membership_added","list":"scientific-calculation","app_store_id":458535809,"app":"calculator-458535809","from":null,"to":"active","reason":"Advanced functions (sin, cos, ln, powers, roots), numeric integral and derivative, and constants, aimed at scientific users, engineers and students as a TI/Casi","job":"shadow"},{"id":136549,"at":"2026-10-17T02:05:13.395Z","kind":"membership_added","list":"calculation","app_store_id":458535809,"app":"calculator-458535809","from":null,"to":"active","reason":"Multi-function calculator for basic calculations, with history tape, memory variables and expression editing, marketed as an alternative to handheld calculators","job":"shadow"},{"id":126844,"at":"2026-10-16T14:46:49.176Z","kind":"app_added","list":null,"app_store_id":458535809,"app":"calculator-458535809","from":null,"to":null,"reason":"discovered","job":"import"}],"explain":{"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); 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