Leonhard Euler vs Taculator 84 Graphing Calc
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Leonhard Euler
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With this app students learn about the life and contributions to mathematics made by Leonhard Euler. It discusses his major mathematical discovers including his identity theorem which is considered to be one of his most significant accomplishements. Leonhard Euler is considered to be the greatest mathematician of the Eighteenth Century. He was born in Basel Switzerland, where he eventually completed a masters degree from the university there in just three years. Early in his life Leonhard Euler's parents wanted him to join the clergy. But young Leonhard was drawn to mathematics. Fortunately the great mathematician Johann Bernoulli recognized that Euler was a mathematical genius and agreed to tutor him. Health problems plagued Euler for most of his life. He eventually became blind but still continued to produce significant work in mathematics. Using this app students learn about his amazing life. It includes introductory information about mathematics. We hope that this app will inspire students to pursue careers in math. Students will enjoy using this graphically illustrated, interactive learning tool. The timeline feature presents key events in the life of Euler. Tapping on timeline points will bring up descriptions of historically significant events in the history of mathematics and the role that Euler played. A quiz function helps students demonstrate their comprehension of the reading material. Key concepts of both math and science are shown in colorful illustrations. We hope this app will inspire students to study math. The app shows that Leonhard Euler certainly deserves the place he has earned in the history of mathematics.
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.
- 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
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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/
Screenshots
Verdict
The clearest difference is price: Taculator 84 Graphing Calc at Free against Leonhard Euler's $1.99. Taculator 84 Graphing Calc also leads on update cadence (every 3 weeks vs every 3 months) and iOS requirement (13.0 vs 15.6). Leonhard Euler's advantage is in-app purchases (none vs 12). On ads 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
Taculator 84 Graphing Calc is free to download; Leonhard Euler costs $1.99 up front. Taculator 84 Graphing Calc sells 7 in-app purchases, starting at $3.99 per month. Leonhard Euler asks for nothing beyond the download.
Leonhard Euler ships an update every 3 months, Taculator 84 Graphing Calc every 3 weeks. The most recent releases landed on September 25, 2026 and October 2, 2026 respectively.
| Parameter | Leonhard Euler | Taculator 84 Graphing Calc |
|---|---|---|
| Price | $1.99 | Free — better |
| Rating | — | 4.5 (7.6K ratings) — better |
| Positive reviews | — | 45.5% of reviews |
| Number of ratings | — | 7.6K — better |
| Update frequency | Every 3 months | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | — | Free with in-app purchases |
| Devices | iPad, Mac, Apple TV | iPhone, iPad, iPod, Mac — better |
| Requires iOS | 15.6 | 13.0 — better |
| Further details — not scored | ||
| Size | 42 MB | 55 MB |
| Age rating | 4+ | 4+ |
| Developer | Ventura Educational Systems | Di Venisco UG (haftungsbeschrankt) |
Bugs and requests
Leonhard Euler
Not enough reviews yet to summarise bugs or 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
In-app purchases
Leonhard Euler
No in-app purchases
Taculator 84 Graphing Calc
- 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
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- Taculator Pro - Yearly$14.991 Year
- Taculator Pro - Yearly7 Days trial$29.991 Year
- Taculator Pro7 Days trial$29.991 Year
- Taculator Pro - Lifetime$5.99
Questions
Is Leonhard Euler free?
Is Taculator 84 Graphing Calc free?
Do Leonhard Euler or Taculator 84 Graphing Calc have ads?
Which is updated more often, Leonhard Euler or Taculator 84 Graphing Calc?
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