Comparison

Taculator 84 Graphing Calc vs GoodGeometry

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

Head to head
About

Taculator 84 Graphing Calc

This advanced calculator app offers comprehensive tools for high school and college students, covering everything from pre-algebra to calculus and statistics. It features high-resolution graphing, matrix operations, and detailed statistical analysis, all accessible through an intuitive interface.

Highlights
  • 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
Features
Read full description

TACULATOR 84 GRAPHING CALCULATOR • Your graphing calculator for high school and college students. • All the commands you know: advanced math, lists, statistics, distributions, stat plots and more. • 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, using the full calculation power of your iPhone/iPad. • High-resolution graphing window for sharp and beautiful graphs. • Icon home screen, redesigned menus, optional status line. • Share calculations by text or email. ◉ Math Functions • Scientific calculator with every basic and advanced function. • Scrollable history; copy any previous calculation. • Complex numbers support • Probability: nPr, nCr, factorial, random numbers. • Enter fractions easily; tap any result to flip fraction and decimal. • Piecewise functions, sequences, list commands like seq(, ΔList(, augment(. • Degree, radian and gradian angle modes, DMS format. • Error messages point at the exact spot in your input. ◉ Graphing Functions • Four graphing modes: Function, Parametric, Polar and Sequence (u, v, w with TIME and WEB plots); trace, tables, CALC and zoom work in every mode. • Smart trace snaps to zeros, maxima, minima, intersections and asymptotes. • Calculate intersection, zero, minimum, maximum, integral, and derivative. • Full ZOOM menu: ZBox, ZSquare, ZTrig, ZoomFit, zoom factors and zoom memory. • Draw on your graph: text, pen, points, tangents, circles and shading in color. • Store and recall pictures, or put a photo behind your graph. • Graph statistical plots like histogram, box plot, scatter plot, xy-line plot. • Full-screen mode, pinch to zoom, full window and format settings. ◉ List, Statistics, and Distribution • Stat list editor with 1- and 2-Variable statistics. • Guided input wizards for every test, interval and distribution. • List math: 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. • Manual-Fit a line by eye, or QuickPlot points and fit a model right on the graph. • Statistical tests: Z-Test, T-Test, 2-Sample Z- and T-Tests, 1- and 2-PropZTest, plus Z-, T- and proportion intervals. • Distributions: Normal, T, χ2, F, Poisson, Binomial, Geometric (each pdf and cdf), invT — and shade them right on the graph. ◉ Command Catalog & Syntax Help • Integrated Catalog & Help: syntax, examples and error messages for every command. • Type a command and see the right syntax next to the cursor. ◉ 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, spin spinners, draw cards. • Science Tools: sig-fig calculator, unit converter, data/graphs wizard, vector calculator. • Conics & Lines: equation templates for lines (even X=C), circles, parabolas, ellipses and hyperbolas, with SOLVE for center, foci, vertices, directrix. • Transformation Graphing, Inequality Graphing, Periodic Table. • Numeric Solver: solve any equation for any variable. ◉ Matrix Calculator • Store matrices and reuse them as [A], [B], [C], ... • Matrix arithmetic: addition, multiplication, scalar products, powers. • Transpose, determinant, inverse, dimension, ref/rref, identity matrix, cumulative sum. 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/

About

GoodGeometry

Enhance geometry tasks within GoodNotes with infinitely zoomable tools, paper templates, and cover designs. Create custom templates and covers with editable patterns. Export your work as zoomable PDFs for versatile use.

Highlights
  • Infinitely zoomable geometric tools
  • Customizable paper templates
  • Editable cover designer
  • Zoomable PDF export
  • Multiple tool designs
  • GoodNotes and collection file formats
Features
Read full description

With GoodGeometry tools, geometry tasks in Goodnotes can be easily edited at correct scale. Geometry tools, paper templates and covers design tools for students, teachers and presentations. All tools, templates and covers are infinitely zoomable without loss of sharpness Export as zoomable PDF - can be used anywhere ■ Geometric triangles (Geodreieck) ■ Compasses ■ Rulers (1/10 millimeter scale) ■ Protractors ■ Paper templates in the correct scale ■ Paper template designer - choose your own colors and line thicknesses ■ Cover Designer with pattern generators - everything editable Choose your favorite tool from many different designs. You get all the tools in two file formats: ■ goodnotes files: You can share .goodnotes files directly with Goodnotes. ■ collection files: First, save .collection files to your files. Then create a new sticker in Goodnotes and import them into the sticker. Easily share all templates and covers with any program of your choice. How to do this is explained in the app. Please also watch our tutorial videos. No in-app purchases, no advertising! Privacy policy: https://www.iubenda.com/privacy-policy/51617525 Terms of use: https://www.iubenda.com/terms-and-conditions/51617525

Screenshots

Taculator 84 Graphing Calc4 screens
GoodGeometry4 screens

Verdict

The call

The clearest difference is price: Taculator 84 Graphing Calc at Free against GoodGeometry's $3.99. Taculator 84 Graphing Calc also leads on rating (4.5 vs 1.2) and ratings volume (7.6K vs 5). GoodGeometry's advantage is in-app purchases (none vs 12) and review sentiment (64% vs 45%). On ads 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

Taculator 84 Graphing Calc is free to download; GoodGeometry costs $3.99 up front. Taculator 84 Graphing Calc sells 7 in-app purchases, starting at $3.99 per month. GoodGeometry asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Taculator 84 Graphing Calc holds the better App Store score, 4.5 against 1.2. That said, the two scores are not equally well evidenced: Taculator 84 Graphing Calc has 7.6K ratings behind it against 5, so its average is the more settled of the two. Written reviews complicate that: 45% of Taculator 84 Graphing Calc's written reviews are positive against 64% of GoodGeometry's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

Taculator 84 Graphing Calc ships an update every 3 weeks, GoodGeometry every 2 months. The most recent releases landed on September 24, 2026 and September 2, 2026 respectively.

Scorecard9 real differences · 1 level
Taculator 84 Graphing Calc versus GoodGeometry: the parameters behind the verdict, then further details
ParameterTaculator 84 Graphing CalcGoodGeometry
PriceFree — better$3.99
Rating4.5 (7.6K ratings) — better1.2 (5 ratings)
Positive reviews45.2% of reviews64.3% of reviews — better
Number of ratings7.6K — better5
Update frequencyEvery 3 weeks — betterEvery 2 months
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases — betterPaid
DevicesiPhone, iPad, iPod, Mac — betteriPhone, iPad
Requires iOS13.0 — better16.4
Further details — not scored
Size55 MB1.3 GB
Age rating4+4+
DeveloperDi Venisco UG (haftungsbeschrankt)Birgit Stock

Customer experience

Taculator 84 Graphing Calc

All ratings7,567 ratings
Positive87.8%
Neutral3.7%
Negative8.5%
Written reviews177 reviews
Positive45.2%
Neutral13.6%
Negative41.2%

GoodGeometry

All ratings5 ratings
Positive0.0%
Neutral0.0%
Negative100.0%
Written reviews28 reviews
Positive64.3%
Neutral0.0%
Negative35.7%

Bugs and requests

Taculator 84 Graphing Calc

Reported bugs

4 issues
  • Cannot handle negative powers
  • Keyboard issues on certain devices
  • Errors when trying to clear lists
  • Scaling and UI issues on some devices

Requested features

4 requests
  • Add apps and programming features
  • Improve graphing capabilities
  • Add support for degrees, minutes, and seconds
  • Implement symbolic calculus and equation solving

GoodGeometry

Not enough reviews yet to summarise bugs or requests.

In-app purchases

7 purchases

Taculator 84 Graphing Calc

Subscriptions6
  • Taculator Pro - Monthly7 Days trial4 variants$3.991 Month
  • Taculator Pro - Monthly2 variants$3.991 Month
  • Taculator Pro - Yearly7 Days trial2 variants$14.991 Year
Show 3 more
  • Taculator Pro - Yearly$14.991 Year
  • Taculator Pro - Yearly7 Days trial$29.991 Year
  • Taculator Pro7 Days trial$29.991 Year
One-time1
  • Taculator Pro - Lifetime$5.99
None

GoodGeometry

No in-app purchases

Questions

Is Taculator 84 Graphing Calc free?
Taculator 84 Graphing Calc is free to download, with in-app purchases available.
Is GoodGeometry free?
GoodGeometry costs $3.99, with no in-app purchases.
Which has better reviews, Taculator 84 Graphing Calc or GoodGeometry?
Taculator 84 Graphing Calc is rated higher. Taculator 84 Graphing Calc averages 4.5 out of 5 from 7.6K ratings, while GoodGeometry averages 1.2 from 5 ratings.
Do Taculator 84 Graphing Calc or GoodGeometry have ads?
Neither Taculator 84 Graphing Calc nor GoodGeometry shows ads.
Which is updated more often, Taculator 84 Graphing Calc or GoodGeometry?
Taculator 84 Graphing Calc ships an update every 3 weeks, and GoodGeometry every 2 months. Most recently, Taculator 84 Graphing Calc was updated on September 24, 2026 and GoodGeometry on September 2, 2026.

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