{"app_store_id":1509489130,"slug":"graphing-calculator-84-calc84-1509489130","name":"Graphing Calculator 84: Calc84","subtitle":null,"icon_url":"https://is1-ssl.mzstatic.com/image/thumb/Purple211/v4/e7/22/14/e72214b3-794f-5846-ebec-1b896813b4e3/calc84_app_icon2-0-0-1x_U007epad-0-1-0-85-220.png/512x512bb.jpg","store_url":"https://apps.apple.com/us/app/graphing-calculator-84-calc84/id1509489130?uo=4","price":0,"currency":"USD","rating":4.6047,"rating_count":5062,"in_app_purchases":null,"recent_rating":null,"recent_review_count":null,"reviews_checked_at":"2026-10-21T20:41:12.933Z","primary_genre":"Education","version_date":"2026-10-20T08:19:52Z","updated_at":"2026-10-21T20:41:12.933Z","stale":false,"missing_since":null,"one_liner":"Calculator app with a UI like a real 84 graphing calculator: graphing, scientific math, equation solving, and.","verified_maker":false,"maker_site":null,"file_size_bytes":164401152,"minimum_os":"15","content_rating":"12+","language_count":51,"screenshots":["https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/fd/35/30/fd353010-f2ff-7037-e348-384cf31e5539/iphone-1_1320x2868.png/320x480bb.jpg","https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/80/ee/e7/80eee751-de8e-0d97-6abd-afaecdea0ac3/iphone-2_1320x2868.png/320x480bb.jpg","https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/f0/1f/5b/f01f5b37-1316-0d34-4923-d477ee6607d0/iphone-3_1320x2868.png/320x480bb.jpg","https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/f3/7d/31/f37d3108-3ac4-a72d-67b0-2f6fbeabf051/iphone-4_1320x2868.png/320x480bb.jpg","https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/f0/a2/bd/f0a2bd67-41b3-f679-4685-115caf49b1a0/iphone-5_1320x2868.png/320x480bb.jpg","https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/44/c8/04/44c80459-bffd-ff06-1e38-83bac3c6f7ea/iphone-6_1320x2868.png/320x480bb.jpg","https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/3e/59/ef/3e59efb1-f85a-b427-4129-2752a8db4c62/iphone-7_1320x2868.png/320x480bb.jpg"],"developer_name":"Tran Duy","editors_choice":null,"url":"https://apptierlist.com/apps/graphing-calculator-84-calc84-1509489130/","api_url":"https://apptierlist.com/api/v1/apps/graphing-calculator-84-calc84-1509489130","schema_version":"1.0","generated_at":"2026-10-22T04:11:17.958Z","data_as_of":"2026-10-21T21:22:13.425Z","description":"The graphing calculator provides a UI similar to a real 84 graphing calculator.\n\n◉ Graphing Calculator\n- Supports function, polar, and parametric graphs.\n- Press MODE and select Graph mode, then press Y= to open the graph editor. Press GRAPH to draw the functions.\n- Interactive and manual tracing modes.\n- Shows intersections, roots, and extrema (local maxima and minima) of function graphs.\n- Shows derivatives of function graphs.\n- Shows tangents to function and polar graphs.\n- Best‐fit line for a set of points.\n- TABLE generates a table of values for the selected graph.\n- CALC computes min, max, d/dx, and integrals of the selected graph.\n\n◉ Scientific Calculator\n- Includes a computer algebra system for symbolic calculation.\n- Supports the functions you use on 83 and 84 graphing calculators.\n- All basic and advanced math functions: complex numbers, probability, angles, relational operations, logic operations, and matrix and vector operations.\n- Users can define custom calculator functions.\n\n◉ Equation Solver (press ALPHA ENTER to open the SOLVER menu)\n- Solves any equation with Auto Solver mode and can provide symbolic roots.\n- Solves quadratic, cubic, quartic, and quintic equations.\n- Solves systems of equations with up to 5 variables.\n\n◉ Statistics\n- 1‐Var Stats: calculates 1‐variable statistics.\n- 2‐Var Stats: calculates 2‐variable statistics.\n- LinReg(ax+b): fits a linear model to data.\n- QuadReg: fits a quadratic model to data.\n- CubicReg: fits a cubic model to data.\n- QuartReg: fits a quartic model to data.\n- LinReg(a+bx): fits a linear model to data.\n- LnReg: fits a logarithmic model to data.\n- ExpReg: fits an exponential model to data.\n\n◉ Inferential Statistics and Distributions\n- Z‐Test, T‐Test, 2‐SampZTest, 2‐SampTTest, 1‐PropZTest, 2‐PropZTest, Z‐Interval, T‐Interval, 2‐SampZInt, 2‐SampTInt, 1‐PropZInt, 2‐PropZInt, Chi‐square Test, Chi‐square GOF Test, 2‐SampFTest, LinRegTTest, LinRegTInt, ANOVA.\n- All distribution functions, including Normal, Student’s t, Chi‐square, F, binomial, and more.\n\n◉ Get Calculator 84 Premium\nUpgrade to the Premium version to access all the features above, including advanced math functions, statistics, inferential statistics and distributions, scanning math with your camera, and more.\n\nChoose from 3 options:\n- A 1‐month subscription\n- A 1‐year subscription\n- A lifetime purchase\n\nSubscription payments will be charged to your Apple Account at confirmation of purchase and at the start of each renewal term. You can cancel at any time through your Apple Account settings. You must do this at least 24 hours before the end of the current period to avoid being charged. Cancellation takes effect the day after the current period ends, and you will be downgraded to the free service.\n\nTI-84 is a registered trademark of Texas Instruments Incorporated. Calc84 is not affiliated with Texas Instruments.\n\nTerms of Service: https://calc84-efd3d.firebaseapp.com/tos.html\nPrivacy Policy: https://calc84-efd3d.firebaseapp.com/privacypolicy.html","facts":{"developer_id":1449106994,"developer_url":"https://calc84-efd3d.firebaseapp.com","first_released":"2020-04-28T07:00:00Z","support_url":null,"privacy_url":null,"website_url":null,"app_version":"3.0.7","release_notes":"- Four new calculator skins: Classic Dark, Classic Light, Flat Dark and Flat Light, with a redesigned skin picker and more realistic keys.\n- Math OCR: draw an expression by hand, paste an image, or use the new camera screen with a scanner frame and zoom.\n- Graphs: pick from over 20 graph color themes and adjust gridlines, axis arrows, line width and text size. The graph table and calculation panel were redesigned.\n- Save results and solver answers straight into variables, lists and matrices.\n- Solvers: open them from CATALOG, read a built-in guide for each one, and get a clear message when there is no solution or infinitely many.\n- A new status line shows 2nd, ALPHA, A-LOCK and the graph mode. ALPHA now turns A-LOCK off.\n- A short note under a result explains how your input was read, such as implied multiplication or the angle unit.\n- New Sound & vibration settings with key sounds and vibration patterns. You can also choose fonts for the display and keypad.\n- Your solves are saved in history, and one damaged entry no longer clears the whole history.\n- More menus and error messages are now translated.\n- Open Calc84 from Control Center on iOS 18 and later.\n- Fixed rounding, very small results showing as 0, and some cursor issues.","rating_current_version":4.6047,"rating_count_current_version":5062,"star_counts":null,"genres":["Education","Utilities"],"languages":["SQ","AR","HY","AZ","EU","BE","BN","BS","BG","CA","HR","CS","DA","NL","EN","FI","FR","DE","EL","HE","HI","HU","ID","IT","JA","KN","KO","LO","LV","LT","MK","MS","ML","OR","FA","PL","PT","PA","RO","RU","SR","ZH","SK","ES","SW","SV","TH","ZH","TR","UK","VI"],"content_advisories":["Infrequent/Mild Cartoon or Fantasy Violence","Infrequent/Mild Mature/Suggestive Themes","Infrequent/Mild Realistic Violence"],"device_families":null,"chart":null},"freshness":{"apple_read_at":"2026-10-21T20:41:12.933Z","catalog_read_at":null,"reviews_checked_at":"2026-10-21T20:41:12.933Z","summary_written_at":"2026-10-18T15:15:12.393Z","placed_at":"2026-10-18T02:11:11.603Z","scored_at":"2026-10-21T21:22:13.425Z"},"editorial":{"one_liner":"Calculator app with a UI like a real 84 graphing calculator: graphing, scientific math, equation solving, and.","what_is":"Calc84 is a free Education app with a UI similar to a real 84 graphing calculator. It covers function, polar, and parametric graphing, a scientific calculator with a computer algebra system, and an equation solver. It also includes statistics, regression, inferential statistics, and distribution functions, with some features listed as part of a Premium upgrade.","good_for":["Students working with function, polar, or parametric graphs","Solving quadratic through quintic equations or systems of up to 5 variables","Running regression and inferential statistics tests on data sets"],"pricing":"Graphing Calculator 84: Calc84 is free to download on the App Store.","faq":[{"q":"Is the app free to install?","a":"Yes, the listing says free to download."},{"q":"What does Premium add?","a":"The description says Premium unlocks all listed features, including advanced math functions, statistics, inferential statistics and distributions, and scanning math with your camera."},{"q":"Is Calc84 affiliated with Texas Instruments?","a":"No. TI-84 is a registered trademark of Texas Instruments Incorporated and that Calc84 is not affiliated with Texas Instruments."}],"model":"claude-haiku-5-5","created_at":"2026-10-18T15:15:12.393Z"},"memberships":[{"list":"graphing","list_name":"graphing","list_status":"active","list_url":"https://apptierlist.com/best/graphing/","position":2,"tier":"S","score":89.8,"components":{"rating":92,"votes":77.6,"rank":89.6,"recency":100},"status":"active","review_status":"checked","list_ranking_status":"ranked","confidence":"normal","judged_at":"2026-10-18T02:11:11.603Z"},{"list":"scientific-calculation","list_name":"scientific calculation","list_status":"active","list_url":"https://apptierlist.com/best/scientific-calculation/","position":10,"tier":"A","score":84.7,"components":{"rating":92.1,"votes":77.6,"rank":69,"recency":100},"status":"active","review_status":"checked","list_ranking_status":"ranked","confidence":"normal","judged_at":"2026-10-18T02:11:11.603Z"}],"main_list":"graphing","claim":{"status":"none","verified":false,"site_url":null,"verified_via":null,"verified_domain":null},"history":[{"id":163102,"at":"2026-10-18T16:31:11.807Z","kind":"tier_changed","list":"graphing","app_store_id":1509489130,"app":"graphing-calculator-84-calc84-1509489130","from":null,"to":"S","reason":"score 67.4 to 90","job":"rescore"},{"id":150541,"at":"2026-10-18T02:29:11.607Z","kind":"tier_changed","list":"scientific-calculation","app_store_id":1509489130,"app":"graphing-calculator-84-calc84-1509489130","from":null,"to":"A","reason":"score 83.9","job":"rescore"},{"id":150045,"at":"2026-10-18T02:11:11.603Z","kind":"membership_added","list":"scientific-calculation","app_store_id":1509489130,"app":"graphing-calculator-84-calc84-1509489130","from":null,"to":"active","reason":"It has a scientific calculator mode with the functions of the 83 and 84 calculators, plus complex numbers, matrices and a computer algebra system.","job":"shadow"},{"id":150044,"at":"2026-10-18T02:11:11.603Z","kind":"membership_added","list":"graphing","app_store_id":1509489130,"app":"graphing-calculator-84-calc84-1509489130","from":null,"to":"active","reason":"It is built as a graphing calculator that plots function, polar and parametric graphs, with tracing, intersections, roots and tangents.","job":"shadow"},{"id":139300,"at":"2026-10-17T03:40:13.442Z","kind":"app_added","list":null,"app_store_id":1509489130,"app":"graphing-calculator-84-calc84-1509489130","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":2,"tier":"S","score":89.8,"components":{"rating":92,"votes":77.6,"rank":89.6,"recency":100},"ranks":[{"country":"us","rank":15},{"country":"gb","rank":8},{"country":"ca","rank":15},{"country":"au","rank":9},{"country":"de","rank":10}],"verdicts":[{"verdict":"keep","reason":"It is built as a graphing calculator that plots function, polar and parametric graphs, with tracing, intersections, roots and tangents.","verifier":"claude-sonnet-5-5","decided_at":"2026-10-18T02:11:11.603Z","attempts":1,"current":true},{"verdict":"keep","reason":"Its core purpose is plotting function, polar and parametric graphs, with tracing, roots, intersections and tables. 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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/apps/graphing-calculator-84-calc84-1509489130/"}}