Comparison

Graphing Calculator 84 vs Click One

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

Head to head
About

Graphing Calculator 84

This app offers a comprehensive graphing and scientific calculator experience, mimicking the functionality of a Ti-84. It includes advanced features for graphing, symbolic calculations, equation solving, and extensive statistical analysis. Users can upgrade for full access to all capabilities.

Highlights
  • Graphing calculator with function, polar, and parametric plots
  • Scientific calculator with computer algebra system
  • Equation solver for various equation types
  • Extensive 1-variable and 2-variable statistics
  • Inferential statistics and distribution functions
  • Interactive and manual tracing modes
Features
Read full description

The graphing calculator provides a UI similar to a real 84 graphing calculator. ◉ Graphing Calculator - Supports function, polar, and parametric graphs. - Press MODE and select Graph mode, then press Y= to open the graph editor. Press GRAPH to draw the functions. - Interactive and manual tracing modes. - Shows intersections, roots, and extrema (local maxima and minima) of function graphs. - Shows derivatives of function graphs. - Shows tangents to function and polar graphs. - Best‑fit line for a set of points. - TABLE generates a table of values for the selected graph. - CALC computes min, max, d/dx, and integrals of the selected graph. ◉ Scientific Calculator - Includes a computer algebra system for symbolic calculation. - Supports the functions you use on 83 and 84 graphing calculators. - All basic and advanced math functions: complex numbers, probability, angles, relational operations, logic operations, and matrix and vector operations. - Users can define custom calculator functions. ◉ Equation Solver (press ALPHA ENTER to open the SOLVER menu) - Solves any equation with Auto Solver mode and can provide symbolic roots. - Solves quadratic, cubic, quartic, and quintic equations. - Solves systems of equations with up to 5 variables. ◉ Statistics - 1‑Var Stats: calculates 1‑variable statistics. - 2‑Var Stats: calculates 2‑variable statistics. - LinReg(ax+b): fits a linear model to data. - QuadReg: fits a quadratic model to data. - CubicReg: fits a cubic model to data. - QuartReg: fits a quartic model to data. - LinReg(a+bx): fits a linear model to data. - LnReg: fits a logarithmic model to data. - ExpReg: fits an exponential model to data. ◉ Inferential Statistics and Distributions - 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. - All distribution functions, including Normal, Student’s t, Chi‑square, F, binomial, and more. ◉ Get Calculator 84 Premium Upgrade 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. Choose from 3 options: - A 1‑month subscription - A 1‑year subscription - A lifetime purchase Subscription 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. TI-84 is a registered trademark of Texas Instruments Incorporated. Calc84 is not affiliated with Texas Instruments. Terms of Service: https://calc84-efd3d.firebaseapp.com/tos.html Privacy Policy: https://calc84-efd3d.firebaseapp.com/privacypolicy.html

About

Click One

This app uses music and animations to teach cause and effect and encourage communication. It offers opportunities for choice-making and interaction with touch screen devices. Multiple user modes cater to different learning needs.

Highlights
  • Music clips and animations
  • Cause and effect learning
  • Communication promotion
  • Choice making opportunities
  • Touch screen interaction
  • Single, 2x, and 4x button modes
Features
Read full description

Click one is an intuitive and engaging app which uses short music clips and animations to assist with building awareness of cause and effect and promote communication. Click One provides opportunities for choice making and to begin to use touch screen devices. The app feature three different user modes - Single button, 2x button and 4x button. When the on screen button is pressed, music is played and an animation is triggered. Click One was designed by Registered Music Therapist Carlin McLellan.

Screenshots

Graphing Calculator 844 screens
Click One3 screens

Verdict

The call

The clearest difference is in-app purchases: Click One at none against Graphing Calculator 84's 4. Click One also leads on ads (none vs shown) and review sentiment (100% vs 84%). 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 84 sells 4 in-app purchases, starting at $1.99 per month. Click One asks for nothing beyond the download.

UpkeepUpdate frequency

Graphing Calculator 84 ships an update every 2 months, Click One monthly. Both last shipped on November 3, 2026.

Scorecard5 real differences · 5 level
Graphing Calculator 84 versus Click One: the parameters behind the verdict, then further details
ParameterGraphing Calculator 84Click One
PriceFreeFree
Rating4.6 (5.1K ratings) — better—
Positive reviews83.7% of reviews100.0% of reviews — better
Number of ratings5.1K — better—
Update frequencyEvery 2 monthsMonthly — better
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFreemiumFree — better
DevicesiPhone, iPad, iPod, Mac — betteriPhone, iPad, iPod
Requires iOS1510.0 — better
Further details — not scored
Size163 MB67 MB
Age rating12+4+
DeveloperTran DuyMusic Therapy Australia Pty Ltd

Customer experience

Graphing Calculator 84

All ratings5,065 ratings
Positive90.0%
Neutral3.4%
Negative6.6%
Written reviews196 reviews
Positive83.7%
Neutral5.1%
Negative11.2%

Click One

Written reviews3 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Bugs and requests

Graphing Calculator 84

Reported bugs

2 issues
  • Incorrect results for some exponent/root operations with negative numbers
  • Inability to view full range of result formats for certain calculations

Requested features

4 requests
  • Ability to edit expressions in history
  • More customization options for themes/icons
  • Improved handling of complex number operations
  • Better support for finding all function zeros

Click One

Not enough reviews yet to summarise bugs or requests.

In-app purchases

4 purchases

Graphing Calculator 84

Subscriptions2
  • Calc84 One Month$1.991 Month
  • Calc84 One Year$2.991 Year
One-time2
  • Graphing Calculator Plus$5.99
  • Calc84 Pro Lifetime$5.99
None

Click One

No in-app purchases

Questions

Is Graphing Calculator 84 free?
Graphing Calculator 84 is free to download, with in-app purchases available.
Is Click One free?
Click One is free to download, with no in-app purchases.
Do Graphing Calculator 84 or Click One have ads?
Graphing Calculator 84 shows ads; Click One does not.
Which is updated more often, Graphing Calculator 84 or Click One?
Graphing Calculator 84 ships an update every 2 months, and Click One monthly. Most recently, Graphing Calculator 84 was updated on November 3, 2026 and Click One on November 3, 2026.

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