# Taculator 84 Graphing Calc — Graphing Calculator for TI-84 > Advanced graphing, matrix, and statistics calculator for students. (iPhone/iPad app by Di Venisco UG (haftungsbeschrankt).) - Source: https://appshunter.io/ios/app/taculator-84-graphing-calc/id1457737367 (this page in markdown: same URL + `.md`) - Developer: [Di Venisco UG (haftungsbeschrankt)](https://appshunter.io/developer/1449451480) - Category: Education, Utilities - Price: Free with in-app purchases - Rating: 4.50/5 from 7,531 App Store ratings · 175 written reviews indexed - Age rating: 4+ - Requires: iOS 13.0 · 54 MB - Languages: American English - Released: 2019-05-08 - Data updated: 2026-08-27 - Monetization: free with in-app purchases - User reviews in markdown: https://appshunter.io/ios/app/taculator-84-graphing-calc/id1457737367/reviews.md ## What is Taculator 84 Graphing Calc? TACULATOR 84 GRAPHING CALCULATOR • Your graphing calculator for high school and college students. • Includes all the commands and functions for advanced math, list, statistics, distribution, stat plots, etc. • Navigate with the arrow keys or your fingers. • Covers everything you need: Pre-Algebra, Algebra 1 & 2, Pre-Calculus, Calculus, Statistics... IT'S EVEN BETTER THAN AN ACTUAL CALCULATOR • 100X faster than a handheld — it uses the full calculation power of your iPhone/iPad. • High-resolution graphing window for sharp and beautiful graphs. • Weighs nothing and is always with you. • Share your calculations as a text message or email. ◉ Built-in Apps • Geometry: points, lines, circles and polygons — measure, transform, animate. • Polynomial Root Finder & Simultaneous Equation Solver. • Finance: Time-Value-of-Money solver, NPV, IRR, amortization. • Probability Simulation: toss coins, roll dice, pick marbles, spin spinners, draw cards. • Science Tools: sig-fig calculator, unit converter, data/graphs wizard, vector calculator. • Transformation Graphing, Conics, Inequality Graphing, Periodic Table. • Numeric Solver: solve any equation for any variable. ◉ Math Functions • Scientific calculator with all basic arithmetic and advanced functions. • Scroll through your history and copy previous calculations. • Complex numbers support • Probability functions like nPr, nCr, factorial, random numbers. • Enter fractions easily — and tap any result to flip between fraction and decimal. • Piecewise-defined functions, sequences and list commands like seq(, ΔList( and augment(. • Degree, radian and gradian angle modes, DMS format. ◉ Graphing Functions • Graph every function you want and trace for X- and Y-values. • Smart trace detects zeros, maxima, minima, intersections and asymptotes as you move along the curve. • Calculate intersection, zero, minimum, maximum, integral, and derivative. • Full ZOOM menu: box zoom, presets like ZSquare, ZTrig and ZoomFit, zoom factors and zoom memory. • Draw on your graph: text, pen, points, pixels, tangents, circles and shading — with colors and line styles. • Store and recall pictures, or put a photo behind your graph as a background image. • Graph statistical plots like histogram, box plot, scatter plot, xy-line plot. • Full-screen mode, pinch to zoom, and complete window and format settings. ◉ Matrix Calculator • Store matrices and reuse them as [A], [B], [C], ... • Matrix arithmetic: scalar multiplication, addition & subtraction, multiplication, powers. • Transpose, determinant, dimension, inverse, row echelon form, reduced row echelon form, identity matrix, cumulated sum. ◉ List, Statistics, and Distribution • Enter your values in the stat list editor and run 1- and 2-Variable statistics. • Use lists to calculate min, max, mean, median, sum, product, standard deviation, variance. • Find best-fit regressions: LinReg (ax+b), LinReg (a+bx), QuadReg, CubicReg, QuartReg, LnReg, ExpReg, PwrReg, Logistic, SinReg, PropReg, RecipReg, eBASEReg — with r and r² diagnostics. • Perform statistical tests: Z-Test, T-Test, 2-SampleZTest, 2-SampleTTest, 1-PropZTest, 2-PropZTest, ZInterval, TInterval, 2-SampleZInterval, 2-SampleTInterval, 1PropZInterval. • Distributions: Normalpdf/cdf, invT, Tpdf/cdf, χ2pdf/cdf, Fpdf/cdf, Poissonpdf/cdf, Binompdf/cdf, Geometpdf/cdf — and shade them right on the graph. ◉ Command Catalog & Syntax Help • Integrated Catalog & Help for every command. • Syntax help, examples, and possible error messages. • Type a command and see the right syntax next to the cursor. SUPPORT Contact us at contact@taculator.com --- Taculator Pro Membership • Unlock advanced calculations and functions with a monthly, yearly, or lifetime subscription. • Subscriptions auto-renew unless canceled at least 24 hours before the end of the current period. • Manage subscriptions in Account Settings. Terms of Service: https://taculator.com/terms/ Privacy Policy: https://taculator.com/privacy/ ## Key features - Scientific and advanced math functions - High-resolution graphing and plotting - Matrix operations and storage - List, statistics, and distribution calculations - Integrated command catalog and help - Complex number support - Share calculations via text or email ## Pricing and in-app purchases Base price: Free. **Subscriptions** | Subscription | Price | Period | | --- | --- | --- | | Taculator Pro - Monthly | $3.99 | per month | | Taculator Pro - Yearly | $14.99 | per year | | Taculator Pro - Yearly | $14.99 | per year | | Taculator Pro - Monthly | $3.99 | per month | | Taculator Pro - Monthly | $3.99 | per month | | Taculator Pro - Monthly | $3.99 | per month | | Taculator Pro - Monthly | $3.99 | per month | | Taculator Pro - Yearly | $14.99 | per year | | Taculator Pro - Yearly | $29.99 | per year | | Taculator Pro | $29.99 | per year | | Taculator Pro - Monthly | $3.99 | per month | ## What do users think of Taculator 84 Graphing Calc? Overall sentiment: neutral **Pros** - 🚀 Excellent implementation and familiar layout - 💡 Customizable buttons and color scheme - 👍 Helpful and life-saving calculator - 🚀 Best on-the-go calculator **Cons** - 🐛 Crashes when trying to graph or use certain functions - 🔒 Requires subscription to access full functionality - 🐛 Inaccurate calculations and wrong results - 🐛 Inconsistent performance and unreliable **Commonly reported bugs** - Cannot handle negative powers - Keyboard issues on certain devices - Errors when trying to clear lists - Scaling and UI issues on some devices **Most requested features** - Add apps and programming features - Improve graphing capabilities - Add support for degrees, minutes, and seconds - Implement symbolic calculus and equation solving ## Recent user reviews (10 of 175) All indexed reviews: https://appshunter.io/ios/app/taculator-84-graphing-calc/id1457737367/reviews.md ### 5/5 — exceptional *2026-08-14, version 1.6.1* i love them. getting me thru college with no ads ### 5/5 — calculater *2026-08-04, version 1.5.1* Coolaliciouse ### 1/5 — Khoai *2026-06-30, version 1.5.1* Như ….. quá khó để sử dụng ### 5/5 — Good service *2026-06-25, version 1.5.1* Dosp ### 5/5 — Best app *2026-03-05, version 1.4.0* I get the best app I have ever seen in my experience ### 1/5 — Hard to cancel *2026-02-27, version 1.4.0* They make canceling very hard and I’ve still been charged for years now ### 1/5 — Not ok *2026-01-04, version 1.4.0* Not ok ### 5/5 — Hồi *2025-12-12, version 1.4.0* Rất tốt ### 5/5 — Quick Review *2025-05-24* Excellent! Your phone becomes a high quality calculator!! ### 5/5 — Optional *2025-04-25, version 1.3.3* Optional ## Frequently asked questions about Taculator 84 Graphing Calc ### What kind of math does this calculator app support? This app supports a wide range of mathematics, including Pre-Algebra, Algebra 1 & 2, Pre-Calculus, Calculus, and Statistics. It includes scientific calculator functions, advanced math commands, and specialized tools for statistical analysis and distribution calculations. ### What are the graphing capabilities of this app? The app offers high-resolution graphing for any function, allowing users to trace for X- and Y-values. It can calculate intersections, zeros, minimums, maximums, integrals, and derivatives. Users can also graph statistical plots like histograms and scatter plots, and draw various shapes. ### How does the matrix calculator work? The matrix calculator allows you to store matrices and reuse them with shortcuts. You can perform various matrix operations such as scalar multiplication, addition, subtraction, multiplication, and calculate the transpose, determinant, dimension, inverse, and row echelon forms. ### Is this app free to use? The app is free to download and use with its core features. For extended functionalities and more advanced calculations, users can opt for a Taculator Pro membership, which is an auto-renewable subscription. ### What devices is this calculator app compatible with? The app is designed to run on iPhones and iPads, leveraging their processing power for faster calculations compared to traditional handheld calculators. It offers a high-resolution graphing window for clear visualizations. ## Version history (last 5 releases) ### 1.7.1 — 2026-08-24 THE GRAPH SCREEN LEARNED TO SEE • Points of Interest trace: zeros, maxima, minima and intersections snap right under your crosshair while you trace — asymptotes too. Turn it on under FORMAT ▸ DETECT • Scroll the graph with one finger — drag the window wherever you like, and the GRAPH key snaps it right back home • The complete ZOOM menu: ZBox, Zoom In/Out, ZSquare, ZDecimal, ZTrig, ZInteger, ZoomFit, ZoomStat and fraction presets — plus zoom factors, ZPrevious, ZoomSto and ZoomRcl on the new MEMORY tab • FORMAT grew from 3 to 8 settings: grid, axes, labels, coordinates, expressions and more • Full support for piecewise functions. A COMPLETE DRAW MENU • Write Text( on the graph, doodle with Pen, set points and pixels, drag an interactive Circle( • Store and recall ten pictures (Pic1–Pic0) — or put any photo behind your graph as a background image • Shade( fills the region between two curves, and the distribution menu gained a DRAW tab: ShadeNorm, Shade_t, Shadeχ², ShadeF DEEPER STATISTICS • Three new regression models: PropReg, RecipReg and eBASEReg SMALL THINGS YOU'LL FEEL EVERY DAY • Fraction results now show little blue ◄► arrows — tap them to flip between fraction and decimal • New MODE options: ANSWERS (auto/decimal/fraction), FRACTION TYPE (n/d or Un/d) and the GRADIAN angle mode • New commands: seq(, ΔList(, augment(, ClrAllLists, storing to dim( • VARS menu now covers window, zoom and statistics variables, GDBs, pictures and Y-VARS • Every zoom command is in the Catalog with a description of how it sets your window Previous update: • The apps key went live — Geometry, Polynomial Root Finder, Finance, Probability Simulation, Science Tools, Transformation Graphing, Conics, Inequality Graphing and the Periodic Table ### 1.7.0 — 2026-08-21 THE GRAPH SCREEN LEARNED TO SEE • Points of Interest trace: zeros, maxima, minima and intersections snap right under your crosshair while you trace — asymptotes too. Turn it on under FORMAT ▸ DETECT • The complete ZOOM menu: ZBox, Zoom In/Out, ZSquare, ZDecimal, ZTrig, ZInteger, ZoomFit, ZoomStat and fraction presets — plus zoom factors, ZPrevious, ZoomSto and ZoomRcl on the new MEMORY tab • FORMAT grew from 3 to 8 settings: grid, axes, labels, coordinates, expressions and more • Full support for piecewise functions. A COMPLETE DRAW MENU • Write Text( on the graph, doodle with Pen, set points and pixels, drag an interactive Circle( • Store and recall ten pictures (Pic1–Pic0) — or put any photo behind your graph as a background image • Shade( fills the region between two curves, and the distribution menu gained a DRAW tab: ShadeNorm, Shade_t, Shadeχ², ShadeF DEEPER STATISTICS • Three new regression models: PropReg, RecipReg and eBASEReg SMALL THINGS YOU'LL FEEL EVERY DAY • Fraction results now show little blue ◄► arrows — tap them to flip between fraction and decimal • New MODE options: ANSWERS (auto/decimal/fraction), FRACTION TYPE (n/d or Un/d) and the GRADIAN angle mode • New commands: seq(, ΔList(, augment(, ClrAllLists, storing to dim( • VARS menu now covers window, zoom and statistics variables, GDBs, pictures and Y-VARS • Every zoom command is in the Catalog with a description of how it sets your window Previous update: • The apps key went live — Geometry, Polynomial Root Finder, Finance, Probability Simulation, Science Tools, Transformation Graphing, Conics, Inequality Graphing and the Periodic Table ### 1.6.1 — 2026-08-11 THE APPS KEY IS NOW LIVE Press [apps] for a whole suite of new built-in apps — free for everyone for a limited time: • Geometry — draw points, lines, circles and polygons, measure lengths, angles and areas, explore transformations, animations and loci • Polynomial Root Finder & Simultaneous Equation Solver • Finance — Time-Value-of-Money solver, NPV, IRR, amortization • Probability Simulation — toss coins, roll dice, pick marbles, spin spinners, draw cards • Science Tools — sig-fig calculator, unit converter, data/graphs wizard, vector calculator • Transformation Graphing — animate function families with coefficient sliders • Conics — circles, ellipses, parabolas, hyperbolas • Inequality Graphing — shade solution regions, including vertical X= inequalities • Periodic Table — every element with detailed properties NUMERIC SOLVER • Solve any equation for any variable — now in the MATH menu and on the solve key MORE IMPROVEMENTS • Fresh new app icon • Arrow keys auto-repeat while held down • Better layout on iPad in landscape — the display stays visible • Shared graph images now match your Light/Dark mode • Saving an image now only asks for add-to-photos permission — the app never gets access to your photo library • Median and quartiles with frequency lists, logBASE with list arguments, and many more fixes Previous versions: • Dark Mode for the calculator display — history, math editor, and every submenu adapt • Redesigned Catalog and Tutorial in modern iOS style • Big theme selection (Classic, Graphite, Silver, Gold, Rose, Mint …) with a fine-tuning color picker ### 1.6.0 — 2026-08-05 THE APPS KEY IS NOW LIVE Press [apps] for a whole suite of new built-in apps — free for everyone for a limited time: • Geometry — draw points, lines, circles and polygons, measure lengths, angles and areas, explore transformations, animations and loci • Polynomial Root Finder & Simultaneous Equation Solver • Finance — Time-Value-of-Money solver, NPV, IRR, amortization • Probability Simulation — toss coins, roll dice, pick marbles, spin spinners, draw cards • Science Tools — sig-fig calculator, unit converter, data/graphs wizard, vector calculator • Transformation Graphing — animate function families with coefficient sliders • Conics — circles, ellipses, parabolas, hyperbolas • Inequality Graphing — shade solution regions, including vertical X= inequalities • Periodic Table — every element with detailed properties NUMERIC SOLVER • Solve any equation for any variable — now in the MATH menu and on the solve key MORE IMPROVEMENTS • Fresh new app icon • Arrow keys auto-repeat while held down • Better layout on iPad in landscape — the display stays visible • Shared graph images now match your Light/Dark mode • Saving an image now only asks for add-to-photos permission — the app never gets access to your photo library • Median and quartiles with frequency lists, logBASE with list arguments, and many more fixes Previous versions: • Dark Mode for the calculator display — history, math editor, and every submenu adapt • Redesigned Catalog and Tutorial in modern iOS style • Big theme selection (Classic, Graphite, Silver, Gold, Rose, Mint …) with a fine-tuning color picker ### 1.5.1 — 2026-05-25 Dark Mode for the Display - Switch the calculator screen between Light and Dark mode. - History, math editor, and every submenu (Math, Stat, List, Distr, Catalog, Tutorial …) adapt. Toggle it in the Mode menu under LIGHT / DARK. Brighter Plot Colors in Dark Mode - Function curves, plots and value-table entries automatically lift to clearly readable tones on dark backgrounds. Your saved colors stay unchanged in Light mode. Refreshed Catalog & Tutorial - The Catalog menu and Tutorial & Help have been redesigned in modern iOS Settings style — rounded cards, colored icon tiles, and larger tap targets. More Theme Options - The onboarding now offers a wide selection of polished themes (Classic, Graphite, Silver, Gold, Rose, Coral, Mint, Iris, Plum, Space …), fine-tunable via the color picker. Other improvements • Color picker saves your choice instantly • Several Mac stability fixes (graph pinch-zoom crash, more) • Better contrast for values under the graph • Side menu with modern colored icons • Numerous layout and performance polishes Previous Versions: • sin²(x), cos²(x), tan²(x) now correctly compute the squared value • Heart curve and similar plots render fully symmetric • "Rate this app" popup shows at most once per day • Seconds symbol (") accessible via ALPHA+[+] • Share graphs with equations displayed right on the image • Instantly share equations with results (e.g. "2+2 = 4") ## Apps similar to Taculator 84 Graphing Calc | App | Rating | Price | Category | | --- | --- | --- | --- | | [Calculator ∞](https://appshunter.io/ios/app/calculator/id458535809) | 4.7 (6,306) | $5.99 | Education | | [Scientific Calculator Plus 991](https://appshunter.io/ios/app/scientific-calculator-plus-991/id1449106995) | 4.7 (12,288) | Free | Education | | [Symbolab - AI Math Solver App](https://appshunter.io/ios/app/symbolab-ai-math-solver-app/id876942533) | 4.6 (26,120) | Free | Education | | [Ncalc - Graphing Calculator 84](https://appshunter.io/ios/app/ncalc-graphing-calculator-84/id1509489130) | 4.6 (4,947) | Free | Education | | [Photomath](https://appshunter.io/ios/app/photomath/id919087726) | 4.8 (732,920) | Free | Education | | [Desmos Graphing Calculator](https://appshunter.io/ios/app/desmos-graphing-calculator/id653517540) | 4.3 (1,274) | Free | Education | ## More apps by Di Venisco UG (haftungsbeschrankt) - [CASIO Graph Calculator Manual](https://appshunter.io/ios/app/casio-graph-calculator-manual/id867458554) - [Abitur Notenpunkte Rechner](https://appshunter.io/ios/app/abitur-notenpunkte-rechner/id874266344) - [TI 84 Graphing Calculator Man.](https://appshunter.io/ios/app/ti-84-graphing-calculator-man/id920176686) - [High School Math - Calculus](https://appshunter.io/ios/app/high-school-math-calculus/id969115798) - [TI Nspire Calculator Manual](https://appshunter.io/ios/app/ti-nspire-calculator-manual/id1057028610) - [TI-84 CE Calculator Manual](https://appshunter.io/ios/app/ti-84-ce-calculator-manual/id1192750649) All apps by Di Venisco UG (haftungsbeschrankt): https://appshunter.io/developer/1449451480 ## Related topics [t84](https://appshunter.io/ios/topics/t84) · [talculator](https://appshunter.io/ios/topics/talculator) · [stats calculator](https://appshunter.io/ios/topics/stats-calculator) · [ti 84](https://appshunter.io/ios/topics/ti-84) · [qmultiply](https://appshunter.io/ios/topics/qmultiply) · [ti 34](https://appshunter.io/ios/topics/ti-34) · [graphing calculator ti 84 free](https://appshunter.io/ios/topics/graphing-calculator-ti-84-free) · [graphing calculator ti 84](https://appshunter.io/ios/topics/graphing-calculator-ti-84) · [ti nspire calculator manual](https://appshunter.io/ios/topics/ti-nspire-calculator-manual) · [scientific calculator ti 84](https://appshunter.io/ios/topics/scientific-calculator-ti-84) · [cubic regression lite](https://appshunter.io/ios/topics/cubic-regression-lite) · [ti 30 calculator](https://appshunter.io/ios/topics/ti-30-calculator) · [ti 30](https://appshunter.io/ios/topics/ti-30) · [ti-84 calculator](https://appshunter.io/ios/topics/ti-84-calculator) · [graphing calculator](https://appshunter.io/ios/topics/graphing-calculator) · [graphic calculator](https://appshunter.io/ios/topics/graphic-calculator) · [graphing calculator x84](https://appshunter.io/ios/topics/graphing-calculator-x84) · [calculator 84](https://appshunter.io/ios/topics/calculator-84) · [ti nspire](https://appshunter.io/ios/topics/ti-nspire) · [t84 calculator](https://appshunter.io/ios/topics/t84-calculator) --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-27.*