# Graph84 for TI 84 Calculator — Graphing Calc, Plus CE & Evo > Advanced scientific and graphing calculator with matrix and statistics functions. (iPhone/iPad app by Di Venisco UG (haftungsbeschrankt).) - Source: https://appshunter.io/ios/app/graph84-for-ti-84-calculator/id1472933065 (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 306 App Store ratings · 25 written reviews indexed - Age rating: 4+ - Requires: iOS 15.0 · 54 MB - Languages: American English - Released: 2019-10-07 - Data updated: 2026-11-13 - Monetization: free with in-app purchases - User reviews in markdown: https://appshunter.io/ios/app/graph84-for-ti-84-calculator/id1472933065/reviews.md ## What is Graph84 for TI 84 Calculator? Graph functions, use advanced math commands for your calculations, create tables, and perform statistics. CALCULATE • Type in equations in natural textbook format • The scientific calculator solves all functions like sin, cos, tan, e, ln, Σ, log, ... • Use MATH, NUM, and PROB functions GRAPH • The graphing calculator lets you plot more than ten functions at once, each with a different color • Touch-enabled graph window • Zoom and trace with your fingers in full-screen • Find intersect, min, max, zero, integral, and derivative STATISTICS • Easily enter lists using the Statistics List Editor • Perform 1- and 2- Variable Stats • Find best-fit lines like LinReg, QuadReg, CubicReg, QuartReg, ExpReg • Work with distributions and regressions TABLE • Analyze X and Y values of your functions MATRIX • Do basic matrix arithmetic operations like +, -, *, or power of a Matrix • Put the matrix into Reduced Row-Echelon form and solve linear equation systems • Calculate the determinant, inversion or transpose the matrix CATALOG • Extensive catalog of all commands with syntax, example, and possible error messages CONTACT Write to us at contact@hypercalc.org --- For extended features such as more advanced calculations and functions, subscribe to HyperCalc. Auto-Renewable Subscription Terms: • Payment will be charged to iTunes Account at confirmation of purchase; • Subscription automatically renews unless auto-renew is turned off at least 24-hours before the end of the current period; • Account will be charged for renewal within 24-hours prior to the end of the current period, and identify the cost of the renewal; • Subscriptions may be managed by the user and auto-renewal may be turned off by going to the user's Account Settings after purchase; • Any unused portion of a free trial period, if offered, will be forfeited when the user purchases a subscription to that publication, where applicable; • Prices are in U.S. dollars, may vary in countries other than the U.S. and are subject to change without notice. Terms of Service: http://www.hypercalc.org/terms.html Privacy Policy: http://www.hypercalc.org/privacy.html ## Key features - Natural textbook equation input - Plot multiple functions with touch controls - Advanced math, number, and probability functions - 1- and 2- Variable statistics - Matrix arithmetic and equation solving - Extensive command catalog ## Pricing and in-app purchases Base price: Free. **Subscriptions** | Subscription | Price | Period | | --- | --- | --- | | HyperCalc - Monthly | $2.99 | per month | | HyperCalc - Yearly | $14.99 | per year | | HyperCalc - Yearly | $14.99 | per year | | HyperCalc - Monthly | $2.99 | per month | | HyperCalc - Monthly | $4.99 | per month | | HyperCalc - Monthly | $4.99 | per month | | HyperCalc - Yearly | $19.99 | per year | | HyperCalc - Yearly | $19.99 | per year | **One-time purchases** | Purchase | Price | Type | | --- | --- | --- | | HyperCalc - Lifetime | $39.99 | one-time | | HyperCalc - Lifetime | $24.99 | one-time | ## What do users think of Graph84 for TI 84 Calculator? Reviews of Graph84 for TI 84 Calculator are mixed: the Education app is rated 4.5/5 from 306 App Store ratings. What users like most: similar to TI-84, good for stats. Top complaints: many features require payment, not free as advertised. Summarized from real user reviews. **Pros** - 👍 Similar to TI-84 - 👍 Good for stats - 👍 Accurate calculations - 👍 No ads - 👍 Fresh design - 👍 Helpful for classes/research - 👍 Good for advanced classes - 👍 Useful for math **Cons** - 💰 Many features require payment - 💰 Not free as advertised - 💰 Subscription model disliked - 💰 Lifetime purchase issues - 💰 Expensive ($30) - 💰 Some features don't work after payment - 💰 Subscription not clearly listed - 💰 IAP promotion issues **Commonly reported bugs** - Domain incorrect in y= table - App closes when pulling up table - Cannot input negative matrices - App freezes during IAP search - Cannot drag functions **Most requested features** - Dark mode - Numeric solver (free) - 2nd function - Chinese language support - Tutorial videos - Settings button (color theme, subscription details) - Standard calculator mode - Show premium features in description - Ability to create programs - More TI-84 Plus CE features ## Is Graph84 for TI 84 Calculator safe? Graph84 for TI 84 Calculator appears safe based on user ratings. The AppsHunter Safety Score for Graph84 for TI 84 Calculator is 89 out of 100. This assessment is based on 306 user ratings, with an App Store average of 4.5 out of 5. Of 306 App Store ratings, 87.3% point to a safe experience, 4.2% suggest some concerns, and 8.5% point to a risky experience. ## Is Graph84 for TI 84 Calculator legit? Graph84 for TI 84 Calculator appears to be a legitimate app. The AppsHunter Legitimacy Score for Graph84 for TI 84 Calculator is 95 out of 100 points across 7 verification signals from App Store and developer data. ## Recent user reviews (10 of 25) All indexed reviews: https://appshunter.io/ios/app/graph84-for-ti-84-calculator/id1472933065/reviews.md ### 2/5 — 要钱 *2025-07-16* 好多功能要钱，别下 ### 5/5 — Please look *2025-06-02, version 1.1.3* Please add a dark mode. Gives the app more personalization. Also missing a lot of ti-84 features like numeric solver. And you should definitely make the numeric solver specifically free, ya know. 😉😉 Wish y’all success! ### 4/5 — 的 *2024-09-13* 希望可以出个2nd的功能 ### 3/5 — Glitch *2024-07-23, version 1.1.3* Overall, I liked this calculator. It was similar to the ones that I am used to. The color choices were nice and I was able to slide it wherever I wanted it to go on the screen. The most important part of a calculator is accuracy. I was very disappointed when I typed a function into a the y= and pulled up the table that my domain was incorrect. There was a random value instead of an error. I even have a recording if this. I tried contacting the email, got no response, so cancelled my subscription. ### 1/5 — It is not free as advertised *2024-07-02, version 1.1.3* They will charge you down loaded. Avoid this if you can . I did not see my review ### 5/5 — Just like a TI84! *2024-04-12, version 1.1.3* So helpful for stats! Definitely worth the $30! ### 5/5 — Table issue *2021-11-10, version 1.1.2* App is great but when I try and pull up the table for an equation in y= the app just closes for some reason. ### 5/5 — 能有中文吗？ 有教学视频吗 不这么会用。 *2021-03-09* 如题 ### 1/5 — Already paid *2021-01-04, version 1.1.2* I paid for the lifetime a few months ago but the new update gave me the base features and said I had to pay again ### 5/5 — Review, and I paid for this *2020-10-08, version 1.1.0* I’m leaving this review because of a glitch and so you see it; your calculator does not allow people to input negative matrices. Like, you can’t input “-2” or anything as a value. Thank you. Please fix this and any other glitches ASAP. **Developer response:** Thanks for your feedback. To enter negative values to a matrix, make sure to use the negation key "(-)". The normal "-" key won't work here. ## Frequently asked questions about Graph84 for TI 84 Calculator ### What does Calculate84 Plus do? Calculate84 Plus is an advanced calculator app that functions as a scientific and graphing calculator. It allows you to input equations in a natural format, solve complex functions, plot multiple graphs with touch controls, perform statistical analysis, and work with matrices. ### What are the key features of this calculator app? Key features include typing equations in natural textbook format, solving functions like sin, cos, and log, plotting over ten functions simultaneously with touch-enabled zooming and tracing, performing 1- and 2- variable statistics, basic matrix operations, and an extensive catalog of commands. ### Is Calculate84 Plus free to use? The app offers a free version with core calculator and graphing functionalities. For extended features, more advanced calculations, and functions, users can subscribe to HyperCalc through an auto-renewable subscription. ### What kind of math can I do with this app? You can perform a wide range of mathematical operations, including trigonometric functions (sin, cos, tan), exponential and logarithmic functions (e, ln, log), summation (Σ), and advanced functions. It also supports matrix arithmetic and solving linear equation systems. ### Who is this app intended for? This app is intended for users who need a powerful calculator similar to a TI-84. This includes students studying mathematics, science, and engineering, as well as professionals who require advanced calculation and graphing capabilities on their mobile device. ## Version history (last 5 releases) ### 1.5.0 — 2026-11-13 CALCULATE84 PLUS IS NOW GRAPH84 PLUS New name, same calculator. Your history, variables and settings stay exactly as they are. This is the biggest update since the app launched, so here is everything that is new. APPS • Press APPS for Geometry, Periodic Table, Finance, Polynomial Root Finder and Simultaneous Equation Solver, Probability Simulation, Science Tools with a unit converter, Transform, Conics and Inequality graphing GRAPHING • Four graph modes: function, parametric, polar and sequence, with TIME, WEB and phase plots • Zeros, maxima, minima and intersections snap under your cursor. Turn it on under FORMAT ▸ DETECT • Scroll the graph with one finger, drag a curve to trace it, draw a tangent at any point • The complete DRAW menu: text, pen, points, circles and shading, ten stored pictures, or a photo behind your graph • The full ZOOM menu: Zoom Box, Zoom Fit, Zoom Default and more, plus quick zoom with + and − • Manual-Fit and QuickPlot & Fit-EQ put a regression right on the graph PROGRAMS • Press 2nd clear to write and run TI-BASIC programs • Built-in editor with a toolbar for →, Lbl, Goto, If, For, Disp, Input and more • Import .8xp files from the Files app; programs share variables, lists and Ans with the home screen MATH • Math templates palette on alpha + X,T,θ,n: fraction, absolute value, piecewise, integral, derivative, sum, nCr, nPr and matrix • Matrices fill in right on the home screen • Numeric Solver, piecewise functions, three new regression models, distribution shading and gradian mode • Statistics wizards with a CALCULATE button, conics and lines with equation templates • nDeriv( is exact and fnInt( adapts to the function • Tap a result to flip between fraction and decimal; alpha + enter shows the decimal right away A NEW LOOK • The display can be light or dark: MODE ▸ DISPLAY • A new math font made for the display, with stacked fractions and clean radicals • Status line above the display: tap NORMAL FLOAT RADIAN to change a setting on the spot • Redesigned menus, and errors appear right under your entry with the spot marked • Division shows as a slash: 3/4 instead of 3÷4 FOR SCHOOL • Export your history as a text file or PDF: 2nd ▸ MEM ▸ Export Entries, or Share in the side menu • On iPad, MODE ▸ KEY PRESSES shows every key you press as keycaps under the display, so a class can follow along FIXES • Stability improvements throughout ### 1.1.3 — 2023-11-08 + Performance Improvements + 1000s separator + Bug fixes ### 1.1.2 — 2020-12-10 + New side menu that makes it easier for you to quickly access links. Open it by swiping left to right in the calculations menu. + Redesigned Y= menu. Give the graphs your favorite colors. + Support for piecewise functions. New commands are available! + Med-Med + randNorm + randBin + Matrix-List + List-Matrix + DrawInv + 2-PropZ-Interval + Chi²-Test + Chi²GOF-Test + LinRegT-Test + LinRegT-Interval + ANOVA ### 1.1.0 — 2020-04-09 + With this update you can export your graphing window as an image or PDF and share it with your friends or save it for yourself. Press the "Graph" key and you will see a new small icon on the right side. You can also save or share a full-screen chart. + Use different History Tabs for your calculations. To add a new History tab, scroll down in the home menu and click the "+" button. This will create a new History tab. This feature is ideal if you are working on several math problems at the same time, or if you want to save your last calculations but start with a new screen. + iPad users can now enjoy the app in landscape mode and multitask with a split-screen. This way you can use your calculator together with another app. + Press and hold any key to access the second function behind it. For example, if you want to use sin-1, you can press "shift" -> "sin" or now just hold "sin" down until you see that shift commands are highlighted. Below are even more useful and new calculator commands. + Draw circles with specified radius and x- and y-value. + seconds " key now available. Press the shift key and the " + " key to use them. + New angle commands for converting coordinates from Polar to Cartesian coordinates and vice versa: R►Pr(, R►Pθ(, P►Rx(, P►Ry( + New matrix commands: Fill (fill a list or matrix with numbers) and randM (create a random number matrix). + A set of new statistical tests: 2-SampZTest, 2-SampTTest, 1-PropZTest, 2-PropZTest, 2-SampZInt, 2-SampTInt, 1-PropZInt. + New regressions added to the STATS menu: LnReg, PwrReg, Logistic, SinReg. + geometpdf and geometcdf have been added to the distribution menu. ### 1.0.4 — 2020-02-11 + Support of complex numbers + Many new distribution commands available + Four new statistical tests for you to use ## Apps similar to Graph84 for TI 84 Calculator | App | Rating | Price | Category | | --- | --- | --- | --- | | [Graphing Calculator 84: Calc84](https://appshunter.io/ios/app/graphing-calculator-84-calc84/id1509489130) | 4.6 (5,112) | Free | Education | | [Graphing Calculator X84](https://appshunter.io/ios/app/graphing-calculator-x84/id1247828717) | 4.5 (50,108) | Free | Education | | [Graphing Calculator Plus AI](https://appshunter.io/ios/app/graphing-calculator-plus-ai/id1279565050) | 4.6 (12,083) | $5.99 | Education | | [Calculate 84 AI](https://appshunter.io/ios/app/calculate-84-ai/id6670720231) | 4.6 (43) | Free | Education | | [PocketCAS: Graphing Calculator](https://appshunter.io/ios/app/pocketcas-graphing-calculator/id517249689) | 4.6 (205) | Free | Education | | [Quick Graph](https://appshunter.io/ios/app/quick-graph/id292412367) | 4.6 (425) | 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 II Calculator Manual](https://appshunter.io/ios/app/ti-nspire-ii-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 [calculate84 plus](https://appshunter.io/ios/topics/calculate84-plus) · [ti-84 plus](https://appshunter.io/ios/topics/ti-84-plus) · [t84](https://appshunter.io/ios/topics/t84) --- *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 2026-11-13.*