Comparison

Calculator ∞ vs Desmos Scientific Calculator

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

Head to head
About

Calculator ∞

This advanced calculator app offers a powerful math core and algebra engine for basic to complex calculations. It includes features like step-by-step solutions, handwriting recognition, and 2D graphing, making it suitable for students, engineers, and programmers.

Highlights
  • Step-by-step solution hints
  • Math Photos Solver
  • Handwriting Recognition
  • AI Math Problem Solver
  • 2D Graphing
  • Unit Converter
  • Matrix/Vector Mode
Features
Currently charting
Read full description

◉ Top Paid Educational Apps in US, UK, AUS, GER,... ◉ QAppReview.com Rated 9/10 ◉ Users Reviewed: "Top Class Calculator !" The BEST Alternative to Graphing TI-83, TI-84, TI-89, Casio FX, Sharp EL,... Calculator Infinity (∞) – The sleek, multi-function calculator for iPhone/iPad is proud to offer a variety of features to satisfy all ranges of customers: The App possesses a powerful math core and algebra engine with mathematical display support, making it a viable tool for everyone from those looking for basic calculation to more advanced users, such as scientific computation, programmers, engineers, and math students. Calculator ∞ makes available everything you need – including a user manual and tutorial video clips – so you can master the app in a matter of minutes! ◉ Official Website: http://iPhoneCalculator.com ◉ ADVANCED FEATURES: ▸ Step-by-step solution (Hints) ▸ Math Photos Solver * ▸ Handwriting Recognition * ▸ Math Problem Solver (AI) * ▸ Well Organized of Functions ◉ GENERAL FEATURES: ▸ Universal Calculator App ¹ ▸ Support Multitasking (iPad) ▸ Support Wireless KB² ▸ Mathematical Display ▸ Edit & Export Expression/Result ▸ History Tape View ▸ Basic Calculations (+, -, x, ÷, %, Abs,...) ▸ Advanced Functions (Sin, Cos, Ln, X!, ^, √,…) ▸ Memory Variables (Including X,Y,Z,M) ▸ F(x) Customize Functions (F1, F2, F3) ▸ Unit Converter (40 Categories, 1000+ Units) ▸ Over 40 Common Constants ▸ Fraction and Degree/Angle Calculation ▸ Numeric Integral & Derivative Calculation ▸ Dual Skins (Silver Light & Carbon+) ▸ No Ads ◉ ALGEBRA FEATURES: ▸ Big Integer & Rational Number (Up to 500!) ▸ Expand and Factor Polynomials ▸ Indefinite integral & Derivative ▸ Two-side Limit ▸ Taylor Series Expansion ▸ Hints and Solutions ◉ 2D GRAPH: ▸ Simultaneous Graph ▸ Smooth Zoom & Transformation ▸ Support F(X,Y) = 0. E.g. Sin(X) + Cos(Y) = 0. ▸ Conic Equations (Parabola, Hyperbola, Ellipse) ▸ Get Intersections, Min, Max & Special Points ◉ CLOUD COMPUTING: ▸ Advanced Two-side Limit ▸ Advanced Indefinite Integral ▸ General Equations (Accurate Roots) ◉ EQUATIONS SOLVERS: ▸ General Equations (Numerical Roots) ▸ Quadratic & Cubic Equations ▸ System of Linear Equations (2 & 3 Unknowns) ◉ REGRESSION & STATISTICS: ▸ Modify & Sort Data ▸ Single Variable Statistics ▸ Linear, Quadratic, Power Regression ▸ Logarithmic & Exponential Regression ◉ COMPLEX CALCULATION: ▸ Polar & Rectangular Notation ▸ Argument, Conjugate Function ▸ Trigonometry Functions ▸ Logarithmic & Exponential Functions ◉ MATRIX/VECTOR MODE: ▸ Support Up to 7x7 Matrix ▸ Support Complex Numbers ▸ Cross, Dot Product ▸ Det, Inverse, Transpose ▸ Cramer’s Rule Solver ▸ Numerical Real Eigenvalues ◉ NUMBER BASE-N MODE: ▸ 15 Different Bases ▸ Support Up to 32 Bits Integer ▸ Binary Operation (NOT, OR, XOR, 2’S, …) ◉ MULTIPLE LANGUAGES: ▸ English, Spanish, German, ▸ French, Japanese, Chinese (*) In-App-Purchase is required ¹: Include iPhone SE, PRO, PRO-MAX, iPad... ²: Standard English KB Calculator ∞ is not only the Calculator IT IS THE MUST HAVE CALCULATOR !!! We love your feedback, Thanks a lot ! Please contact us for questions, bugs/crash reports, conversion requirements, etc.... Terms of Service: https://iphonecalculator.com/terms-of-service/

About

Desmos Scientific Calculator

This app offers a powerful scientific calculator with a wide range of functions for trigonometry, statistics, and combinatorics. Users can define and evaluate their own functions, assign values to variables, and view multiple expressions simultaneously. It works offline and is completely free to use.

Highlights
  • Basic arithmetic operations
  • Trigonometric functions
  • Statistical calculations
  • Combinatorics and factorials
  • Custom function definition
  • Variable assignment
  • Offline functionality
Features
Read full description

Move beyond arithmetic with the Desmos scientific calculator! In addition to the basic operations, take advantage of a variety of built-in functions for exploring trigonometry, statistics, combinatorics, and more. Or, define and evaluate your own functions -- all for free. 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 a simple yet powerful scientific calculator that runs on the same blazingly fast math engine as our next-generation graphing calculator, but with a more streamlined set of features, for those times when you just don’t need a graph. It’s intuitive, beautiful, and completely free. Features: Arithmetic: In addition to the 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. Other features: - Works offline, no internet connection required. - Create and evaluate your own functions using familiar function notation. - Assign values to variables for later use. - View multiple expressions at once. Unlike many scientific calculators, all of your previous work remains visible on the screen. - The “ans” key always holds the value of your last computation so that you never have to remember or copy a result. If you change an earlier expression, the “ans” value updates automatically. - Did we mention it’s free?

Screenshots

Calculator ∞4 screens
Desmos Scientific Calculator3 screens

Verdict

The call

The clearest difference is price: Desmos Scientific Calculator at Free against Calculator ∞'s $5.99. Desmos Scientific Calculator also leads on in-app purchases (none vs 4). Calculator ∞'s advantage is rating (4.7 vs 4.3) and ratings volume (6.3K vs 332). On review sentiment, update cadence, 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

CostPrice · In-app purchases · Ads · Monetization

Desmos Scientific Calculator is free to download; Calculator ∞ costs $5.99 up front. Calculator ∞ sells 4 in-app purchases, starting at $3.49 per month. Desmos Scientific Calculator asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Calculator ∞ holds the better App Store score, 4.7 against 4.3. That said, the two scores are not equally well evidenced: Calculator ∞ has 6.3K ratings behind it against 332, so its average is the more settled of the two. Written reviews complicate that: 75% of Calculator ∞'s written reviews are positive against 79% of Desmos Scientific Calculator's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

Calculator ∞ ships an update every 2 months, Desmos Scientific Calculator every 3 months. The most recent releases landed on September 22, 2026 and September 10, 2026 respectively.

Scorecard7 real differences · 4 level
Calculator ∞ versus Desmos Scientific Calculator: the parameters behind the verdict, then further details
ParameterCalculator ∞Desmos Scientific Calculator
Price$5.99Free — better
Rating4.7 (6.3K ratings) — better4.3 (332 ratings)
Positive reviews74.7% of reviews78.8% of reviews — better
Number of ratings6.3K — better332
Update frequencyEvery 2 months — betterEvery 3 months
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
Best chart rank#115 — better
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS12.1 — better16.0
Further details — not scored
Size46 MB15 MB
Age rating4+4+
DeveloperIncpt.MobisDesmos

Customer experience

Calculator ∞

All ratings6,306 ratings
Positive93.6%
Neutral1.8%
Negative4.6%
Written reviews419 reviews
Positive74.7%
Neutral5.3%
Negative20.0%

Desmos Scientific Calculator

All ratings332 ratings
Positive81.0%
Neutral6.0%
Negative13.0%
Written reviews160 reviews
Positive78.8%
Neutral10.6%
Negative10.6%

In-app purchases

4 purchases

Calculator ∞

Subscriptions2
  • Unlimited OCR/Writing 1 Month$3.491 Month
  • Unlimited OCR/Writing 3 Months$8.993 Months
One-time2
  • 400 AI Recognition & Queries$0.99
  • 900 AI Recognition & Queries$1.99
None

Desmos Scientific Calculator

No in-app purchases

Questions

Is Calculator ∞ free?
Calculator ∞ costs $5.99, and also offers in-app purchases.
Is Desmos Scientific Calculator free?
Desmos Scientific Calculator is free to download, with no in-app purchases.
Which has better reviews, Calculator ∞ or Desmos Scientific Calculator?
Calculator ∞ is rated higher. Calculator ∞ averages 4.7 out of 5 from 6.3K ratings, while Desmos Scientific Calculator averages 4.3 from 332 ratings.
Do Calculator ∞ or Desmos Scientific Calculator have ads?
Neither Calculator ∞ nor Desmos Scientific Calculator shows ads.
Which is updated more often, Calculator ∞ or Desmos Scientific Calculator?
Calculator ∞ ships an update every 2 months, and Desmos Scientific Calculator every 3 months. Most recently, Calculator ∞ was updated on September 22, 2026 and Desmos Scientific Calculator on September 10, 2026.

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