Comparison

Desmos Test Mode vs Graphing Calculator X84

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Desmos Test Mode

This app provides restricted versions of graphing and scientific calculators designed to meet exam requirements. It allows users to practice for specific state or national assessments by selecting the appropriate test mode. Full, unrestricted calculator features are available in separate applications.

Highlights
  • Exam-compliant calculator modes
  • Graphing capabilities
  • Scientific calculator functions
  • Data tables and statistics
  • Interactive sliders
  • Points of interest on graphs
Read full description

** These are restricted versions of the Desmos Calculators that comply with exam requirements. To prepare for specific state or national assessments, select the corresponding test from the menu in the app. Find out whether Desmos is used for your test at www.desmos.com/testing. If you’d like to use full, unrestricted versions of the calculators, download the Scientific or Graphing Calculator apps or visit www.desmos.com. ** At Desmos, we imagine a world of universal math literacy where math is accessible and enjoyable for all students. To that end, we’ve built simple yet powerful calculators. They’re intuitive, beautiful, and completely free. - - - Graphing Calculator Features: Graphing: Plot polar, Cartesian, and parametric graphs. There’s no limit to how many expressions you can graph at one time—and you don’t even need to enter expressions in y= form! Sliders: Adjust values interactively to build intuition, or animate any parameter to visualize its effect on the graph. Tables: Input and plot data, or create an input-output table for any function. Statistics: Use regressions to find the lines (or other curves!) that best fit your data. Zooming: Scale the axes independently or at the same time with the pinch of two fingers, or edit the window size manually to get the perfect view of your graph. Points of Interest: Touch a curve to show its maximum and minimum values, intercepts, and points of intersection with other curves. Tap any of these points of interest to see their coordinates. Hold and drag along a curve to see the coordinates change under your finger as you trace. - - - Scientific Calculator Features: Variables: Assign values to variables that you can use in other expressions. Since all of your work is held in the expressions list, you can compute a value once and use it in many places simultaneously. Take advantage of the “ans” key, which always stores the value of the previous expression. Arithmetic: Beyond the four basic operations, the scientific calculator also supports exponentiation, radicals, absolute value, logarithms, rounding, and percentages. Trigonometry: Evaluate the fundamental trigonometric functions and their inverses using either radians or degrees for angle measure. Statistics: Compute the mean and standard deviation (sample or population) of a list of data. Combinatorics: Count combinations and permutations and calculate factorials. - - - Four-Function Calculator Features: Simple and Beautiful: Just the basics done right. Add, subtract, multiply, divide, and take square roots. Multiple Expressions: Unlike many four-function calculators, all of your previous work remains visible on the screen. The special “ans” key always holds the value of the previous computation (and updates automatically!), so you never have to remember or copy a result.

About

Graphing Calculator X84

This app offers a free, powerful alternative to hardware graphing calculators. It supports basic to complex math, including graphing, statistics, and matrix operations, with a built-in user manual for assistance.

Highlights
  • Graphing of functions
  • Statistics and regression analysis
  • Matrix operations
  • Equation and polynomial solver
  • Integral and derivative calculation
  • Mathematical display
Features
Read full description

Graphing Calculator X has a formidable reputation of being the FREE alternative to heavy complex hardware calculators. It is suitable for all types of users, whether they are looking to carry out basic or complex mathematics; It is equipped with a powerful MATH CORE advocated by MATH DISPLAY support, which increases its functionality by leaps and bounds, making it an ideal choice for engineers, math students etc. It comes with an in depth User Manual and Tutorial to answer any questions you have, regarding the app and to help you further understand the world of advanced mathematics. ◉ BUILT-IN DOCUMENTS: ▸ Basic General Calculation ▸ X & Y Calculation & Intersection of Functions ▸ Calculate Local Maxima, Minima... ▸ Statistics & Regression ▸ Solve Equations & Polynomial ▸ Calculate Integral Functions ◉ CALCULATOR INCLUDED: ▸ Universal Calculator App ▸ Mathematical Display ▸ Complex Number Calculation ▸ Edit & Export Expression/Result ▸ History Tape View ▸ Basic Calculations (+, -, x, ÷, ^, √,…) ▸ Advanced Functions (Sin,Cos,Ln,E,…) ▸ Y-Var & Customize Functions (Y1, Y2) ▸ Fraction and Degree/Angle Calculation ▸ Numeric Integral & Derivative Calculation ▸ Hardware Keyboard Support ▸ Dual Themes(Skin) ◉ 2D GRAPH: ▸ Simultaneous Graph (2 Y-Var) ▸ Support F(X,Y) = 0. E.g. Sin(X) + Cos(Y) = 0 ▸ Smooth Zoom & Transformation ▸ Points TRACING ▸ Box Plot (STAT) ◉ STATISTIC,REGRESSION & TEST: ▸ Create/Edit Lists ▸ 1-Var, 2-Var Statistic ▸ Linear, Ln, Exp Regressions ▸ Dialog Wizard Setups ◉ MATRIX: ▸ Create/Edit Matrices ▸ Basic Matrix Functions (+,-,×,÷…) ▸ Transpose, Det,... ◉ ADITIONAL FEATURES: ▸ Quadratic Equation Solver ▸ 2-Var Linear Equation Solver ▸ And more will be available in further update! IT IS THE MUST HAVE CALCULATOR !!!!!!! We love your feedback, Thanks a lot ! Please contact us for questions, bugs/crash reports, conversion requirements, etc…

Screenshots

Desmos Test Mode4 screens
Graphing Calculator X844 screens

Verdict

The call

The clearest difference is rating: Graphing Calculator X84 at 4.5 against Desmos Test Mode's 1.6. Graphing Calculator X84 also leads on ratings volume (50K vs 370) and review sentiment (38% vs 17%). Desmos Test Mode's advantage is in-app purchases (none vs 1) and ads (none vs shown). On price, update cadence and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Graphing Calculator X84 sells 1 one-off in-app purchase. Desmos Test Mode asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Graphing Calculator X84 holds the better App Store score, 4.5 against 1.6. That said, the two scores are not equally well evidenced: Graphing Calculator X84 has 50K ratings behind it against 370, so its average is the more settled of the two. Written reviews point the same way: 17% of Desmos Test Mode's written reviews are positive against 38% of Graphing Calculator X84's.

UpkeepUpdate frequency

Desmos Test Mode ships an update every 4 months, Graphing Calculator X84 every 3 months. The most recent releases landed on November 1, 2026 and November 8, 2026 respectively.

Scorecard7 real differences · 3 level
Desmos Test Mode versus Graphing Calculator X84: the parameters behind the verdict, then further details
ParameterDesmos Test ModeGraphing Calculator X84
PriceFreeFree
Rating1.6 (370 ratings)4.5 (50K ratings) — better
Positive reviews16.5% of reviews38.3% of reviews — better
Number of ratings37050K — better
Update frequencyEvery 4 monthsEvery 3 months — better
AdsNo — betterYes
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS16.012.1 — better
Further details — not scored
Size6 MB23 MB
Age rating4+4+
DeveloperDesmosIncpt.Mobis

Customer experience

Desmos Test Mode

All ratings370 ratings
Positive14.3%
Neutral2.4%
Negative83.2%
Written reviews139 reviews
Positive16.5%
Neutral5.0%
Negative78.4%

Graphing Calculator X84

All ratings49,931 ratings
Positive88.4%
Neutral3.7%
Negative7.9%
Written reviews196 reviews
Positive38.3%
Neutral8.2%
Negative53.6%

User reviews

Desmos Test Mode

From 370 App Store ratings

What we love

  • 🚀 Useful app for tests
  • 🔒 Secure calculator mode
  • 👍 Free alternative to expensive calculators

Room to improve

  • 🐛 Buggy and unstable
  • 🔒 Overly restrictive app lock
  • 👎 Poor user interface and usability

Graphing Calculator X84

From 50K App Store ratings

What we love

  • 🚀 Exact replica of TI-84 calculator
  • 🤩 Great for school/college math
  • 👍 Convenient to have on phone
  • 💰 Cheaper than physical calculator

Room to improve

  • 📺 Intrusive and frequent ads
  • 🔓 Key features locked behind paywall
  • 🛑 Restricted functionality compared to physical TI-84
  • 🤯 Ads disrupt focus during timed tests

Bugs and requests

Desmos Test Mode

Reported bugs

3 issues
  • App crashes and freezes during use
  • Unexpected phone behavior and lockouts
  • Compatibility issues across different devices and OS versions

Requested features

3 requests
  • Add customization options for the calculator interface
  • Improve compatibility with older devices
  • Provide more flexible calculator modes during tests

Graphing Calculator X84

Reported bugs

3 issues
  • Calculation errors on basic functions
  • Graphing and programming features not working as expected
  • Frequent crashes and freezes

Requested features

4 requests
  • Option to pay and remove ads
  • More customization options
  • Haptic feedback when pressing buttons
  • Better integration with physical TI-84 calculators

In-app purchases

None

Desmos Test Mode

No in-app purchases

1 purchases

Graphing Calculator X84

One-time1
  • PRO Upgrade$5.99

Questions

Is Desmos Test Mode free?
Desmos Test Mode is free to download, with no in-app purchases.
Is Graphing Calculator X84 free?
Graphing Calculator X84 is free to download, with in-app purchases available.
Which has better reviews, Desmos Test Mode or Graphing Calculator X84?
Graphing Calculator X84 is rated higher. Desmos Test Mode averages 1.6 out of 5 from 370 ratings, while Graphing Calculator X84 averages 4.5 from 50K ratings.
Do Desmos Test Mode or Graphing Calculator X84 have ads?
Graphing Calculator X84 shows ads; Desmos Test Mode does not.
Which is updated more often, Desmos Test Mode or Graphing Calculator X84?
Desmos Test Mode ships an update every 4 months, and Graphing Calculator X84 every 3 months. Most recently, Desmos Test Mode was updated on November 1, 2026 and Graphing Calculator X84 on November 8, 2026.

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