Comparison

PocketCAS lite for Mathematics vs FX Calculus Problem Solver

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

Head to head
About

PocketCAS lite for Mathematics

This advanced math application assists with a wide range of mathematical problems, from basic arithmetic to calculus, algebra, and statistics. It functions as a graphing calculator replacement, aids in homework, and supports complex calculations for academic and professional use.

Highlights
  • 2D and 3D plotting
  • Calculus functions (limits, derivatives)
  • Linear algebra operations
  • Equation solving
  • Scripting language
  • Physical units and constants
  • iCloud sync
Read full description

PocketCAS is the most advanced mathematics application for iPhone and iPad. It can help you with any kind of math problem, from elementary school all the way up to calculus, algebra and statistics. It can replace your old graphing calculator, help you with your homework, and assist you in any kind of calculation for university or work. This app is an indispensable tool for every student, teacher and engineer. It makes college-level calculus and algebra easy and can help you in a wide range of cases. It provides features comparable with a TI-89 calculator and combines them with a modern, intuitive interface and incredible graphics capabilities. MATHEMATICAL CAPABILITIES - 2D Plots: Quickly create 2D cartesian, implicit, polar or parametric plots. - 3D Plots: PocketCAS draws stunning 3D plots! - Calculus: Calculate limits, derivatives, integrals and taylor expansions. - Linear Algebra: Invert and multiply matrices or calculate determinants, eigenvalues and much more! - Algebra: Perform integer and polynomial factorization and division, use permutations, and more. - Solving: PocketCAS will solve almost any equation for you. It even supports systems of linear equations and ordinary differential equations! - Scripting: PocketCAS' C-style scripting language allows you to define custom functions, use conditional expressions, loops and also supports recursion. - Physical Units: Constants and units are provided out of the box. Simply enter physical formulas with the corresponding units and convert results to the units you prefer. ADDITIONAL FUNCTIONALITY - iCloud support: Sync documents between your Mac, iPhone and iPad! - Export: Print or export plots, entries or the whole document as PDF! - Mathematical keyboard: PocketCAS' mathematical keyboard is unmatched on the App Store. - Help: All functions are explained in the built-in reference. If you're stuck, there's plenty of tutorials as well as a manual (http://pocketcas.com/manual) to get you going. And you can always contact our support (http://pocketcas.com/support) for help! - Offline computation: PocketCAS doesn't need an internet connection to calculate results. LIMITATIONS OF THE LITE VERSION PocketCAS lite is a free version of PocketCAS that will allow you to try out the interface and many features before buying PocketCAS pro. It has the following limitations: - Many advanced mathematical functions (e.g. integration, taylor expansion, eigenvalues, solving equations, etc.) are unavailable. - It will plot only two functions at a time. - Exported graphics will be watermarked. The full functionality is available in PocketCAS pro. REVIEWS "This program has an incredible amount of power for such a compact program. I teach high school math, and this program can work with all sorts of expressions, graphs, and help check my work. Definitely worth it!" "I am 8 years old and this App is awesome! It helps you learn calculus quickly. It's a work of art!" "One of three Apps I use when teaching A Level maths. Have recommended to numerous students. Excellent." "This is one of the best. The CAS capabilities are compatible to only two other apps, and this one is all offline and includes countless additional features. It's never steered me wrong and is the first thing I go to when I'm in a hurry to figure something out. If you're a student this is pretty much as good as it can get." "You will love this calculator. It's powerful to calculate everything, doesn't matter you're a high school student or college student. Specially for the people who like to solve problems with graphs!" "This app is so powerful and slick looking. It is totally amazing and what it can do."

About

FX Calculus Problem Solver

Solve calculus homework and textbook problems with this comprehensive math software. It offers animated solution steps, a scientific and graphing calculator, and an intuitive editor for typing in your own problems. Ideal for students preparing for exams.

Highlights
  • Animated step-by-step solutions
  • Scientific calculator
  • Graphing calculator
  • Automatic problem solving
  • Math problem expression editor
  • Over 1,000 sample problems
Features
Read full description

Will guide you how to solve your Calculus homework and textbook problems, anytime, anywhere. FX Calculus Solver is a comprehensive math software, based on an automatic mathematical problem solving engine, and ideal for students preparing term math exams, ACT, SAT, and GRE: - Over 1,000 sample math problems and fully animated solution steps - Scientific calculator supported - Graphing calculator supported - Automatic problem solving and generation of fully animated step-by-step procedures for problems typed in by users - User friendly math problem expression editor (WYSIWYG mode) Math Solver covers problems at the level of College Algebra, Pre-Calculus and Calculus courses: - Matrix - Equations, system of equations - Inequalities - Function - Graphing - Limit - Differentiation - Integration

Screenshots

PocketCAS lite for Mathematics4 screens
FX Calculus Problem Solver4 screens

Verdict

The call

The clearest difference is rating: PocketCAS lite for Mathematics at 4.7 against FX Calculus Problem Solver's 3.4. PocketCAS lite for Mathematics also leads on review sentiment (91% vs 48%) and monetization model (free vs free with in-app purchases). On price, ratings volume, update cadence and 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

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

PocketCAS lite for Mathematics holds the better App Store score, 4.7 against 3.4. Both are backed by a comparable volume of ratings — 204 and 78 respectively. Written reviews point the same way: 91% of PocketCAS lite for Mathematics's written reviews are positive against 48% of FX Calculus Problem Solver's.

UpkeepUpdate frequency

PocketCAS lite for Mathematics ships an update every 3 months, FX Calculus Problem Solver every 5 months. The most recent releases landed on September 25, 2026 and September 20, 2026 respectively.

Scorecard3 real differences · 7 level
PocketCAS lite for Mathematics versus FX Calculus Problem Solver: the parameters behind the verdict, then further details
ParameterPocketCAS lite for MathematicsFX Calculus Problem Solver
PriceFreeFree
Rating4.7 (204 ratings) — better3.4 (78 ratings)
Positive reviews90.7% of reviews — better48.5% of reviews
Number of ratings204 — better78
Update frequencyEvery 3 months — betterEvery 5 months
AdsNoNo
In-app purchasesNoNo
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS12.011.0 — better
Further details — not scored
Size25 MB35 MB
Age rating4+4+
DeveloperTiming Software GmbHEuclidus Inc

Customer experience

PocketCAS lite for Mathematics

All ratings204 ratings
Positive92.2%
Neutral4.4%
Negative3.4%
Written reviews151 reviews
Positive90.7%
Neutral1.3%
Negative7.9%

FX Calculus Problem Solver

All ratings77 ratings
Positive57.1%
Neutral11.7%
Negative31.2%
Written reviews66 reviews
Positive48.5%
Neutral10.6%
Negative40.9%

User reviews

PocketCAS lite for Mathematics

From 204 App Store ratings

What we love

  • 👍 Intuitive and user-friendly interface
  • 📊 Excellent graphing capabilities with 3D visualization
  • 💰 Free version available with substantial features
  • 🧮 Powerful mathematical computation engine
  • 📱 Convenient mobile alternative to expensive calculators

Room to improve

  • 🐛 Recent updates cause crashes on older documents
  • 💸 Expensive compared to free alternatives
  • 🔒 Limited free version functionality
  • 🎮 Clunky interface in some areas
  • ❌ Cannot plot certain advanced functions

FX Calculus Problem Solver

From 78 App Store ratings

What we love

  • 👍 Excellent for learning calculus
  • 👍 Step-by-step solutions provided
  • 👍 Helpful for reviewing concepts
  • 👍 Good for checking homework answers
  • 👍 Can simplify complex problems

Room to improve

  • 😞 Frequent crashes and freezing
  • 😞 Inaccurate answers for some problems
  • 😞 "Scam" due to payment issues
  • 😞 Premium version stops working after purchase
  • 😞 Paid content is essential

Bugs and requests

PocketCAS lite for Mathematics

Reported bugs

6 issues
  • App crashes when loading previously saved documents
  • Crashes with no error feedback or debugging information
  • Cannot plot certain mathematical functions
  • Zoom scaling issues with 3D graphs (scales Z-axis incorrectly)
  • Compatibility broken with iOS 6 after iOS 7 update
Show 1 more
  • Function plotting limitations for advanced equations

Requested features

8 requests
  • Dark theme/dark mode for UI
  • Multiple polynomials on single graph
  • Inverse button functionality
  • Better zoom functionality for 3D graphs
  • Improved documentation and tutorials
Show 3 more
  • More Greek characters support
  • Measurement conversion capabilities
  • Better control layout and cleanup

FX Calculus Problem Solver

Reported bugs

15 issues
  • App crashes when launching animated solutions board
  • App crashes after solving 2-3 operations
  • App freezes when clicking solve button
  • App crashes when hitting solve button
  • App stops working after paying for premium
Show 10 more
  • App asks for Apple ID password repeatedly after purchase
  • App gives wrong answers for simple differential problems
  • App crashes when trying more complicated integrals
  • Menus won't unexpand
  • App crashes on iPhone 6 plus
  • App freezes when creating big complex functions
  • Trig functions needed were not there
  • Keeps saying input was wrong or couldn't be calculated
  • Distributing ln across addition function incorrectly
  • Cannot graph more than half of the equations

Requested features

11 requests
  • Add summation functionality
  • Add trigonometry functions and equations
  • Add camera recognition for problems
  • Add curve fitting feature
  • Add INC and DEC coordinates on graph
Show 6 more
  • Add MiN and Maxima to graph
  • Add dy/dx button for implicit differentiation
  • Add tutorial on how to use the app
  • Improve cube root input method
  • Add dark mode option
  • Allow saving keyboard layout

In-app purchases

None

PocketCAS lite for Mathematics

No in-app purchases

None

FX Calculus Problem Solver

No in-app purchases

Questions

Is PocketCAS lite for Mathematics free?
PocketCAS lite for Mathematics is free to download, with no in-app purchases.
Is FX Calculus Problem Solver free?
FX Calculus Problem Solver is free to download, with no in-app purchases.
Which has better reviews, PocketCAS lite for Mathematics or FX Calculus Problem Solver?
PocketCAS lite for Mathematics is rated higher. PocketCAS lite for Mathematics averages 4.7 out of 5 from 204 ratings, while FX Calculus Problem Solver averages 3.4 from 78 ratings.
Do PocketCAS lite for Mathematics or FX Calculus Problem Solver have ads?
Neither PocketCAS lite for Mathematics nor FX Calculus Problem Solver shows ads.
Which is updated more often, PocketCAS lite for Mathematics or FX Calculus Problem Solver?
PocketCAS lite for Mathematics ships an update every 3 months, and FX Calculus Problem Solver every 5 months. Most recently, PocketCAS lite for Mathematics was updated on September 25, 2026 and FX Calculus Problem Solver on September 20, 2026.

Other comparisons