Comparison

Taculator 84 Graphing Calc vs Smart Digital ID

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

Smart Digital ID

Manage your school ID and important information securely. Access your class schedule, grades, and events. Create digital passes for school facilities like the library and gym.

Highlights
  • Digital school ID management
  • Access class schedules
  • View grades and events
  • Create digital facility passes
  • Secure information storage
Features
Read full description

Digital ID is the convenient and secure way to manage your school ID and passes. With Digital ID, you can: Easily access your school ID and other important information. Your school ID is always at your fingertips, so you can quickly access it whenever you need it. You can also view other important information, such as your class schedule, grades, and upcoming events. Create and manage digital passes for your school library, gym, and other facilities. Digital passes make it easy to use your school facilities without having to carry around physical cards or key fobs.

Screenshots

Taculator 84 Graphing Calc4 screens
Smart Digital ID3 screens

Verdict

The call

The clearest difference is review sentiment: Smart Digital ID at 100% against Taculator 84 Graphing Calc's 46%. Smart Digital ID also leads on in-app purchases (none vs 12). Taculator 84 Graphing Calc's advantage is rating (4.5 vs 2.0) and ratings volume (7.7K vs 24). On price, ads, device support and iOS requirement 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. Taculator 84 Graphing Calc sells 7 in-app purchases, starting at $3.99 per month. Smart Digital ID 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 2.0. That said, the two scores are not equally well evidenced: Taculator 84 Graphing Calc has 7.7K ratings behind it against 24, so its average is the more settled of the two. Written reviews complicate that: 46% of Taculator 84 Graphing Calc's written reviews are positive against 100% of Smart Digital ID'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, Smart Digital ID every 5 weeks. The most recent releases landed on October 26, 2026 and October 24, 2026 respectively.

Scorecard6 real differences · 4 level
Taculator 84 Graphing Calc versus Smart Digital ID: the parameters behind the verdict, then further details
ParameterTaculator 84 Graphing CalcSmart Digital ID
PriceFreeFree
Rating4.5 (7.7K ratings) — better2.0 (24 ratings)
Positive reviews45.5% of reviews100.0% of reviews — better
Number of ratings7.7K — better24
Update frequencyEvery 3 weeks — betterEvery 5 weeks
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPad, iPod, Mac — betteriPhone, iPad, iPod
Requires iOS15.014.0.0 — better
Further details — not scored
Size57 MB41 MB
Age rating4+4+
DeveloperDi Venisco UG (haftungsbeschrankt)Covantia, Inc.

Customer experience

Taculator 84 Graphing Calc

All ratings7,628 ratings
Positive87.8%
Neutral3.7%
Negative8.5%
Written reviews178 reviews
Positive45.5%
Neutral13.5%
Negative41.0%

Smart Digital ID

All ratings24 ratings
Positive25.0%
Neutral0.0%
Negative75.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

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

Smart Digital ID

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$7.99
None

Smart Digital ID

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 Smart Digital ID free?
Smart Digital ID is free to download, with no in-app purchases.
Which has better reviews, Taculator 84 Graphing Calc or Smart Digital ID?
Taculator 84 Graphing Calc is rated higher. Taculator 84 Graphing Calc averages 4.5 out of 5 from 7.7K ratings, while Smart Digital ID averages 2.0 from 24 ratings.
Do Taculator 84 Graphing Calc or Smart Digital ID have ads?
Neither Taculator 84 Graphing Calc nor Smart Digital ID shows ads.
Which is updated more often, Taculator 84 Graphing Calc or Smart Digital ID?
Taculator 84 Graphing Calc ships an update every 3 weeks, and Smart Digital ID every 5 weeks. Most recently, Taculator 84 Graphing Calc was updated on October 26, 2026 and Smart Digital ID on October 24, 2026.

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