{"app_store_id":684978583,"slug":"sci-pro-calculator-684978583","name":"Sci:Pro Calculator","subtitle":null,"icon_url":"https://is1-ssl.mzstatic.com/image/thumb/Purple113/v4/f4/fc/ab/f4fcab95-6432-c365-71eb-efac4e9c3b1c/AppIcon-0-0-1x_U007emarketing-0-0-0-5-0-0-sRGB-0-0-0-GLES2_U002c0-512MB-85-220-0-0.png/512x512bb.jpg","store_url":"https://apps.apple.com/us/app/sci-pro-calculator/id684978583?uo=4","price":0,"currency":"USD","rating":4.7652,"rating_count":3897,"in_app_purchases":null,"recent_rating":null,"recent_review_count":null,"reviews_checked_at":null,"primary_genre":"Utilities","version_date":"2019-09-20T15:17:09Z","updated_at":"2026-10-21T08:40:13.013Z","stale":false,"missing_since":null,"one_liner":"Utilities app by Jerry Montgomery on the App Store.","verified_maker":false,"maker_site":null,"file_size_bytes":73424896,"minimum_os":"9.3","content_rating":"4+","language_count":1,"screenshots":["https://is1-ssl.mzstatic.com/image/thumb/Purple113/v4/97/25/6c/97256c00-9f6f-7511-fa0b-070bfa8e2bc6/pr_source.png/392x696bb.png","https://is1-ssl.mzstatic.com/image/thumb/Purple113/v4/20/55/9b/20559b73-23fe-c881-565e-a1eb44128f5e/mzl.bzttsear.png/392x696bb.png","https://is1-ssl.mzstatic.com/image/thumb/Purple113/v4/e3/6a/87/e36a876b-a590-f211-1701-4004bc55167a/mzl.jpqibktw.png/392x696bb.png","https://is1-ssl.mzstatic.com/image/thumb/Purple113/v4/53/b6/3b/53b63b7e-b63a-3533-5652-2756ddffdb40/mzl.ckaekmbx.png/392x696bb.png","https://is1-ssl.mzstatic.com/image/thumb/Purple113/v4/61/6d/9b/616d9b8f-43d1-d56a-2c8e-e5177cbcd7fd/mzl.vyzuxinh.png/392x696bb.png"],"developer_name":"Jerry Montgomery","editors_choice":null,"url":"https://apptierlist.com/apps/sci-pro-calculator-684978583/","api_url":"https://apptierlist.com/api/v1/apps/sci-pro-calculator-684978583","schema_version":"1.0","generated_at":"2026-10-21T18:25:53.201Z","data_as_of":"2026-10-21T17:15:13.047Z","description":"Sci:Pro Calculator is a simple multi-mode calculator for your iPhone, iPad,  and iPod Touch (Universal App). The app features three modes of operation: Basic, Scientific, and Programmer. Each mode features an easy-to-access history view and support for sharing results using e-mail or by copying & pasting values to and from other applications.\n\nThis is our first app for the App Store and we’re making the first version free for everyone to use without ads. If you like the app please take a moment to rate it for us. if you encounter any bugs or problems while using it please let us know and we’ll do our best to fix them as quickly as possible.\n\nApp Features:\n• No Ads!\n• Multi-mode Calculator (Basic, Scientific, Programmer)\n• Calculation History (Swipe up/down to access)\n• Full screen key layouts (in all orientations)\n• Multiple Copy & Paste Formats\n• Share Results via Email (Plain Text, HTML)\n• Memory Keys (M+,M-,MC,MR)\n• Configurable Display Precision (2 to 15 digits)\n• User Interface Sounds (Configurable: on/off)\n• Retina graphics (Optimized for all devices)\n\nBasic Mode:\n• High-Precision Floating Point (2-15 digits display precision)\n• Selectable Display Formats (Standard, Scientific, Engineering)\n• Basic Math Functions (+, -, ×, ÷)\n• Percent Key/Mode (Single value or Expression-based)\n• Parentheses Keys (Expression Grouping/Nesting—iPad Only)\n\nScientific Mode:\n• High-Precision Floating Point (2-15 digits display precision)\n• Selectable Display Formats (Standard, Scientific, Engineering)\n• Basic Math Functions (+, -, ×, ÷, modulo)\n• Percent Key/Mode (Single value or Expression-based)\n• Parentheses Keys (Expression Grouping/Nesting)\n• Trigonometric Functions (Normal, Inverse, and Hyperbolic)\n• Selectable Trig. Mode (Degrees, Radians)\n• Exponent Functions (2^x, 10^x, x^y, x2, x3 e^x)\n• Root Functions (√, 3√, x√y)\n• Logarithmic Functions (Log2, Log10, Ln)\n• Other Functions (random, Exponent, Factorial, 1/x)\n• Numerical Constants (π, e)\n\nProgrammer Mode:\n• 64 bit Integer Values\n• Radix Modes & Conversion (Binary, Decimal, Hexadecimal, Octal)\n• Integer Math Functions (+, -, ×, ÷, MOD)\n• Bitwise Operators (AND, OR, NOR, XOR)\n• Bit Shift and Rotate (Single & Multiple bit)\n• Signed Number Operations (1’s & 2's Complement)\n• Byte-Flip, Word-Flip\n• Bit Count\n• Random Integer\n• Parentheses Keys (Expression Grouping/Nesting)\n• Full-time Binary View (iPad Only)\n• Encoding Views (ASCII, Unicode, RGB)\n• Multiple Copy Formats (Binary, Hex, Decimal, ASCII, Unicode, RGB value)\n• Multiple Paste Formats (Decimal, Hex, Octal, and Binary values)","facts":{"developer_id":684978586,"developer_url":"http://www.digitalambience.com/apps/scipro","first_released":"2013-08-13T00:42:16Z","support_url":null,"privacy_url":null,"website_url":null,"app_version":"1.3.1","release_notes":"• Updated for iOS 13\n• Fixes crash during startup on iOS 13\n• Minor bug fixes and improvements\n\nThis is a minor release to correct a critical bug that causes the app to crash when launching it on iOS 13. Thanks for all the feedback and bug reports during the iOS 13 Beta test. Please let us know if you encounter any problems using the app. Enjoy!","rating_current_version":4.7652,"rating_count_current_version":3897,"star_counts":null,"genres":["Utilities"],"languages":["EN"],"content_advisories":null,"device_families":null,"chart":null},"freshness":{"apple_read_at":"2026-10-21T08:40:13.013Z","catalog_read_at":null,"reviews_checked_at":null,"summary_written_at":null,"placed_at":"2026-10-18T06:43:11.797Z","scored_at":"2026-10-21T17:15:13.047Z"},"editorial":null,"memberships":[{"list":"scientific-calculation","list_name":"scientific calculation","list_status":"active","list_url":"https://apptierlist.com/best/scientific-calculation/","position":31,"tier":"F","score":42.8,"components":{"rating":95.3,"votes":75.9,"rank":0,"recency":0},"status":"active","review_status":"checked","list_ranking_status":"ranked","confidence":"provisional","judged_at":"2026-10-18T06:43:11.797Z"},{"list":"calculation","list_name":"calculation","list_status":"active","list_url":"https://apptierlist.com/best/calculation/","position":58,"tier":null,"score":42.8,"components":{"rating":95.3,"votes":75.9,"rank":0,"recency":0},"status":"active","review_status":"checked","list_ranking_status":"ranked","confidence":"provisional","judged_at":"2026-10-18T06:43:11.797Z"}],"main_list":"scientific-calculation","claim":{"status":"none","verified":false,"site_url":null,"verified_via":null,"verified_domain":null},"history":[{"id":158509,"at":"2026-10-18T07:09:11.704Z","kind":"tier_changed","list":"scientific-calculation","app_store_id":684978583,"app":"sci-pro-calculator-684978583","from":null,"to":"F","reason":"score 42.8","job":"rescore"},{"id":157852,"at":"2026-10-18T06:43:11.797Z","kind":"membership_added","list":"scientific-calculation","app_store_id":684978583,"app":"sci-pro-calculator-684978583","from":null,"to":"active","reason":"Offers a dedicated Scientific mode with high-precision floating point and scientific/engineering display formats; named Sci:Pro.","job":"shadow"},{"id":157851,"at":"2026-10-18T06:43:11.797Z","kind":"membership_added","list":"calculation","app_store_id":684978583,"app":"sci-pro-calculator-684978583","from":null,"to":"active","reason":"Multi-mode calculator with a Basic mode for everyday arithmetic (+, -, ×, ÷, percent, memory keys, history).","job":"shadow"},{"id":152696,"at":"2026-10-18T03:53:11.613Z","kind":"app_added","list":null,"app_store_id":684978583,"app":"sci-pro-calculator-684978583","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); 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":31,"tier":"F","score":42.8,"components":{"rating":95.3,"votes":75.9,"rank":0,"recency":0},"ranks":[],"verdicts":[{"verdict":"keep","reason":"Offers a dedicated Scientific mode with high-precision floating point and scientific/engineering display formats; named Sci:Pro.","verifier":"claude-sonnet-5-5","decided_at":"2026-10-18T06:43:11.797Z","attempts":1,"current":true},{"verdict":"keep","reason":"It has a dedicated Scientific mode for advanced math, alongside its Basic and Programmer modes.","verifier":"list check","decided_at":"2026-10-18T06:43:11.797Z","attempts":1,"current":true}]},{"list":"calculation","list_name":"calculation","status":"active","review_status":"checked","position":58,"tier":null,"score":42.8,"components":{"rating":95.3,"votes":75.9,"rank":0,"recency":0},"ranks":[],"verdicts":[{"verdict":"keep","reason":"Multi-mode calculator with a Basic mode for everyday arithmetic (+, -, ×, ÷, percent, memory keys, history).","verifier":"claude-sonnet-5-5","decided_at":"2026-10-18T06:43:11.797Z","attempts":1,"current":true},{"verdict":"keep","reason":"Multi-mode calculator with a Basic mode for everyday arithmetic, memory keys and history. 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