{"app_store_id":744882019,"slug":"graphncalc83-744882019","name":"GraphNCalc83","subtitle":"Graphing calculator","icon_url":"https://is1-ssl.mzstatic.com/image/thumb/Purple211/v4/2a/a1/73/2aa1737c-78db-e7e8-dab1-51b76eb4d25c/AppIcon-0-0-1x_U007emarketing-0-6-0-85-220.png/512x512bb.jpg","store_url":"https://apps.apple.com/us/app/graphncalc83/id744882019?uo=4","price":12.99,"currency":"USD","rating":4.88011,"rating_count":4037,"in_app_purchases":false,"recent_rating":null,"recent_review_count":null,"reviews_checked_at":null,"primary_genre":"Education","version_date":"2025-11-22T23:04:12Z","updated_at":"2026-10-19T14:27:11.608Z","stale":false,"missing_since":null,"one_liner":"Graphing calculator app with algebraic entry, touch-based graphing, matrix and statistics tools, and BASIC programming.","verified_maker":false,"maker_site":null,"file_size_bytes":10119168,"minimum_os":"15.6","content_rating":"4+","language_count":2,"screenshots":["https://is1-ssl.mzstatic.com/image/thumb/Purple123/v4/c5/a1/f4/c5a1f409-086a-c247-150b-e58b00a6d390/pr_source.jpg/392x696bb.jpg","https://is1-ssl.mzstatic.com/image/thumb/Purple123/v4/4a/e9/51/4ae951ab-91db-d926-6b1e-66650431695f/pr_source.jpg/392x696bb.jpg","https://is1-ssl.mzstatic.com/image/thumb/Purple113/v4/87/90/ac/8790ac64-7acf-c85c-5f90-bd8f331f1b20/pr_source.jpg/392x696bb.jpg","https://is1-ssl.mzstatic.com/image/thumb/Purple123/v4/cd/c1/98/cdc19874-b689-7fe9-19c1-d5d4dcca1e6a/pr_source.jpg/392x696bb.jpg","https://is1-ssl.mzstatic.com/image/thumb/Purple123/v4/94/27/06/94270633-ca82-fd6c-bd6f-6210c77dfa99/pr_source.jpg/392x696bb.jpg","https://is1-ssl.mzstatic.com/image/thumb/Purple123/v4/5f/0c/d9/5f0cd9e7-d170-9eef-e170-330ca50962e4/pr_source.jpg/392x696bb.jpg","https://is1-ssl.mzstatic.com/image/thumb/Purple123/v4/e2/4b/4d/e24b4d26-c787-9cc8-33ff-6004576ebe53/pr_source.jpg/392x696bb.jpg","https://is1-ssl.mzstatic.com/image/thumb/Purple123/v4/7e/fc/19/7efc19b5-5145-8535-59e3-7f736e151ac5/pr_source.jpg/392x696bb.jpg"],"developer_name":"Ernest Brock","editors_choice":false,"url":"https://apptierlist.com/apps/graphncalc83-744882019/","api_url":"https://apptierlist.com/api/v1/apps/graphncalc83-744882019","schema_version":"1.0","generated_at":"2026-10-20T17:32:05.197Z","data_as_of":"2026-10-20T14:54:12.948Z","description":"GraphNCalc83 uses touch, color and blazing speed to handle your math problems. The familiar calculator keyboard, arrow keys and functions are enhanced with full touch input for all graphs, editors and menus. Enter calculations in natural textbook format. Enter fractions and view result as fractions. Trace graphs with your finger. Zoom in and out with a pinch. Explore regressions with a tap on the screen. Scroll through the list, matrix and calculation history with a swipe. Tap the ? key for help. Written using the latest 64 bit math libraries, GraphNCalc83 harnesses the amazing computing resources of the iPhone and iPad to provide a colorful, fast and fluid experience. Graphs scroll, glide and zoom smoothly. Matrix, statistics and BASIC programs run 500x times faster than traditional calculators.\n\nGraphNCalc83 includes:\n\nAlgebraic entry: Enter problems using full algebraic textbook notation. The command line editor includes interactive parenthesis matching and high lighting, undo and redo, bubble function help and a 200 level calculation history and recall stack. Generate a PDF report of calculations for mailing or printing using the SEND function.\n\nMath functions: Trigonometry, logarithms, function minimum, maximum, numeric integration and derivatives, general solver, real and imaginary numbers, combination, permutation, random number generation, normal, T, chi squared, Fisher, poisson and geometric distributions, binary shift and rotate, test and logic operations, list operations including sort, std. deviation, sum, sequence, matrix determinant, transpose, sum, ref, rref, addition, multiplication.\n\nGraph functions, parametric, f(x,y) and polar equations and statistics plots: Full color graphs with touch to trace, pinch zoom, function minimum, maximum, intersections, asymptotes and numeric integration. Output graphs in high resolution PDF format for mailing or printing. Interactively explore function behavior using variables tied to slider bars.\n\nStatistics, Inferential Statistics and Distributions: A set of inferential statistics worksheets and graphs of distributions are included. The regression analysis screen allows you to quickly compute, view and analyze a data set using a variety of curve fitting methods.\n\nTable: Analyze functions using the table viewer. Use the split screen mode to simultaneously view a graph and table.\n\nMatrix and Lists: Matrix and list editors and a full set of matrix and list operations are built in.\n\nUnit Converter and Constants: Convert between a wide variety of scientific, engineering and common units. A large set of physical constants are also included.\n\nBASIC programming: Create, edit, debug and run BASIC programs.  Programs run more than 500 times faster than traditional calculators. Import and execute .83p and .8xp files.\n\nChemistry: The calculator includes a full featured periodic table, a mass calculator and a data base of element properties. The touch interface allows you to view and interact with the periodic table to view by series, state, melting point, boiling point, electronegativity, electron affinity, valence, ionization, radius, hardness, modulus, density, conductivity, heat and year discovered.\n\nGeometry: The geometry application computes perimeter and area for a variety of 2d geometric figures including squares, rectangles, parallelograms, triangles, polygons, circles, arcs and ellipses. A full triangle solver and interactive unit circle grapher are built in. Solve line intersections, project a point to a line and find a circle given 3 points.\n\nFinance: Compute time value of money problems including annuities, lump sums and uneven cash flow analysis with IRR and NPV \n\nBuilt-in user guide: A user guide is included and is a touch away using the ? key or  i on any menu.  All functions have a full manual page with description of arguments and examples of use. Pop up bubble help displays function arguments during problem entry and program editing.","facts":{"developer_id":289555912,"developer_url":"http://www.acornaircraft.com/Acorn_Aircraft.html","first_released":"2014-05-18T14:10:38Z","support_url":"http://acornaircraft.com/contact-us.html","privacy_url":"https://acornaircraft.com/privacy.html","website_url":"http://www.acornaircraft.com/Acorn_Aircraft.html","app_version":"3.4","release_notes":"•Update for iOS26\n•Fixed bugs in BASIC debugger\n•Long tap history to copy to paste buffer","rating_current_version":4.88011,"rating_count_current_version":4037,"star_counts":[45,15,45,169,3763],"genres":["Education","Utilities"],"languages":["EN","ES"],"content_advisories":null,"device_families":["iphone","ipad","ipod"],"chart":{"name":"top-paid Education","position":58}},"freshness":{"apple_read_at":"2026-10-19T14:27:11.608Z","catalog_read_at":"2026-10-19T14:27:11.608Z","reviews_checked_at":null,"summary_written_at":"2026-10-19T14:37:11.605Z","placed_at":"2026-10-18T06:12:11.929Z","scored_at":"2026-10-20T14:54:12.948Z"},"editorial":{"one_liner":"Graphing calculator app with algebraic entry, touch-based graphing, matrix and statistics tools, and BASIC programming.","what_is":"GraphNCalc83 is a graphing calculator in the Education genre. The listing describes algebraic textbook-style entry and graphs of function, parametric, polar and f(x,y) equations, along with statistics, matrix, list, table, unit conversion, constants, chemistry and BASIC programming features. Touch input is used for tracing graphs, pinch zoom and exploring regressions.","good_for":["Graphing and tracing functions on an iPhone or iPad","Running matrix, list or statistics calculations","Writing, editing and running BASIC programs"],"pricing":"GraphNCalc83 is $12.99 to download on the App Store.","faq":[{"q":"Does it run on iPhone and iPad?","a":"The app uses the computing resources of the iPhone and iPad. Minimum iOS version and other platform details are Not stated on the App Store."},{"q":"Can I save or share my work?","a":"The listing says calculations can be exported as a PDF report using the SEND function, and graphs can be output in high resolution PDF format for mailing or printing."},{"q":"Are there any extra purchases after install?","a":"The listing states a price of $12.99 USD."}],"model":"claude-haiku-5-5","created_at":"2026-10-19T14:37:11.605Z"},"memberships":[{"list":"graphing","list_name":"graphing","list_status":"active","list_url":"https://apptierlist.com/best/graphing/","position":6,"tier":"C","score":69.3,"components":{"rating":97.6,"votes":76.1,"rank":48,"recency":55.5},"status":"active","review_status":"checked","list_ranking_status":"ranked","confidence":"normal","judged_at":"2026-10-18T06:12:11.929Z"},{"list":"scientific-calculation","list_name":"scientific calculation","list_status":"active","list_url":"https://apptierlist.com/best/scientific-calculation/","position":25,"tier":"D","score":57.3,"components":{"rating":97.6,"votes":76.1,"rank":0,"recency":55.5},"status":"active","review_status":"checked","list_ranking_status":"ranked","confidence":"provisional","judged_at":"2026-10-18T06:12:11.929Z"},{"list":"calculation","list_name":"calculation","list_status":"active","list_url":"https://apptierlist.com/best/calculation/","position":48,"tier":null,"score":57.3,"components":{"rating":97.6,"votes":76.1,"rank":0,"recency":55.5},"status":"active","review_status":"checked","list_ranking_status":"ranked","confidence":"provisional","judged_at":"2026-10-18T06:12:11.929Z"}],"main_list":"graphing","claim":{"status":"none","verified":false,"site_url":null,"verified_via":null,"verified_domain":null},"history":[{"id":169341,"at":"2026-10-19T05:08:11.787Z","kind":"tier_changed","list":"calculation","app_store_id":744882019,"app":"graphncalc83-744882019","from":"D","to":null,"reason":"rank shift: #41, below the tiered top 40","job":"rescore"},{"id":163097,"at":"2026-10-18T16:31:11.807Z","kind":"tier_changed","list":"graphing","app_store_id":744882019,"app":"graphncalc83-744882019","from":null,"to":"C","reason":"score 57.4 to 69.4","job":"rescore"},{"id":157079,"at":"2026-10-18T06:23:11.804Z","kind":"tier_changed","list":"scientific-calculation","app_store_id":744882019,"app":"graphncalc83-744882019","from":null,"to":"D","reason":"score 57.4","job":"rescore"},{"id":157056,"at":"2026-10-18T06:23:11.804Z","kind":"tier_changed","list":"calculation","app_store_id":744882019,"app":"graphncalc83-744882019","from":null,"to":"D","reason":"score 57.4","job":"rescore"},{"id":156906,"at":"2026-10-18T06:12:11.929Z","kind":"membership_added","list":"scientific-calculation","app_store_id":744882019,"app":"graphncalc83-744882019","from":null,"to":"active","reason":"It is a TI-83 style calculator with trig, logs, calculus functions, statistics distributions and complex numbers.","job":"shadow"},{"id":156905,"at":"2026-10-18T06:12:11.929Z","kind":"membership_added","list":"graphing","app_store_id":744882019,"app":"graphncalc83-744882019","from":null,"to":"active","reason":"It is built around graphing, with touch tracing, pinch zoom, smooth scrolling graphs and regression exploration.","job":"shadow"},{"id":156904,"at":"2026-10-18T06:12:11.929Z","kind":"membership_added","list":"calculation","app_store_id":744882019,"app":"graphncalc83-744882019","from":null,"to":"active","reason":"secondary","job":"shadow"},{"id":151979,"at":"2026-10-18T03:36:11.698Z","kind":"app_added","list":null,"app_store_id":744882019,"app":"graphncalc83-744882019","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":"graphing","list_name":"graphing","status":"active","review_status":"checked","position":6,"tier":"C","score":69.3,"components":{"rating":97.6,"votes":76.1,"rank":48,"recency":55.5},"ranks":[{"country":"us","rank":21}],"verdicts":[{"verdict":"keep","reason":"It is built around graphing, with touch tracing, pinch zoom, smooth scrolling graphs and regression exploration.","verifier":"claude-sonnet-5-5","decided_at":"2026-10-18T06:12:11.929Z","attempts":1,"current":true},{"verdict":"keep","reason":"A TI-83-style graphing calculator whose core features are plotting, tracing and zooming graphs and exploring regressions.","verifier":"list check","decided_at":"2026-10-18T06:12:11.929Z","attempts":1,"current":true}]},{"list":"scientific-calculation","list_name":"scientific calculation","status":"active","review_status":"checked","position":25,"tier":"D","score":57.3,"components":{"rating":97.6,"votes":76.1,"rank":0,"recency":55.5},"ranks":[],"verdicts":[{"verdict":"keep","reason":"It is a TI-83 style calculator with trig, logs, calculus functions, statistics distributions and complex numbers.","verifier":"claude-sonnet-5-5","decided_at":"2026-10-18T06:12:11.929Z","attempts":1,"current":true},{"verdict":"keep","reason":"It includes trigonometry, logarithms and other advanced math functions as part of its main calculator purpose.","verifier":"list check","decided_at":"2026-10-18T06:12:11.929Z","attempts":1,"current":true}]},{"list":"calculation","list_name":"calculation","status":"active","review_status":"checked","position":48,"tier":null,"score":57.3,"components":{"rating":97.6,"votes":76.1,"rank":0,"recency":55.5},"ranks":[],"verdicts":[{"verdict":"keep","reason":"secondary","verifier":"claude-sonnet-5-5","decided_at":"2026-10-18T06:12:11.929Z","attempts":1,"current":true},{"verdict":"keep","reason":"A full calculator app with a calculator keyboard, so it handles everyday arithmetic as its core function, like the other calculators already in the list.","verifier":"list check","decided_at":"2026-10-18T06:12:11.929Z","attempts":1,"current":true}]}]},"data_version":39092,"attribution":{"name":"AppTierList","url":"https://apptierlist.com/","terms":"https://apptierlist.com/terms/","rule":"Use AppTierList data as you like. 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