PocketCAS lite for Mathematics vs functionCalculator
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- 2D and 3D plotting
- Calculus functions (limits, derivatives)
- Linear algebra operations
- Equation solving
- Scripting language
- Physical units and constants
- iCloud sync
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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."
functionCalculator
This app calculates the value of mathematical functions y = f(x) for various types of numbers, including irrational ones. It displays results as exact fractions with square roots and can convert them to decimals. The app also supports calculations involving two different input values, alpha and beta.
- Calculate function values for any number type
- Display results as exact fractions
- Convert results to decimal
- Perform operations on two input values
- Supports irrational numbers
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Calculate the value of the mathematical function y = f (x). It is possible to assign to x any integer, rational number, irrational number. For example, you can assign square root 2 to x. It is not necessary to fix it to decimal. The calculation result is output in the form of a fraction using square root. It is exactly the same as math calculations. You can also convert the result to decimal. Calculate the values of f (α) and f (β) for two kinds of values, x = α and x = β, and f (α) + f (β), f (α) - f ), F (α) * f (β), f (α) / f (β) can also be calculated.
Screenshots
Verdict
The clearest difference is ads: PocketCAS lite for Mathematics at none against functionCalculator's shown. PocketCAS lite for Mathematics also leads on rating (4.7 vs 4.3) and update cadence (every 3 months vs every 11 months). functionCalculator's advantage is iOS requirement (10.3 vs 12.0). On price, in-app purchases 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
PocketCAS lite for Mathematics holds the better App Store score, 4.7 against 4.3. That said, the two scores are not equally well evidenced: PocketCAS lite for Mathematics has 204 ratings behind it against 6, so its average is the more settled of the two.
PocketCAS lite for Mathematics ships an update every 3 months, functionCalculator every 11 months. The most recent releases landed on September 16, 2026 and June 1, 2026 respectively.
| Parameter | PocketCAS lite for Mathematics | functionCalculator |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (204 ratings) — better | 4.3 (6 ratings) |
| Positive reviews | 90.7% of reviews | — |
| Number of ratings | 204 — better | 6 |
| Update frequency | Every 3 months — better | Every 11 months |
| Ads | No — better | Yes |
| In-app purchases | No | No |
| Monetization | Free — better | Ad-supported |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 12.0 | 10.3 — better |
| Further details — not scored | ||
| Size | 25 MB | 6 MB |
| Age rating | 4+ | 4+ |
| Developer | Timing Software GmbH | Jirou Fukuda |
Customer experience
PocketCAS lite for Mathematics
functionCalculator
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
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- 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
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- More Greek characters support
- Measurement conversion capabilities
- Better control layout and cleanup
functionCalculator
Not enough reviews yet to summarise bugs or requests.
In-app purchases
PocketCAS lite for Mathematics
No in-app purchases
functionCalculator
No in-app purchases
Questions
Is PocketCAS lite for Mathematics free?
Is functionCalculator free?
Which has better reviews, PocketCAS lite for Mathematics or functionCalculator?
Do PocketCAS lite for Mathematics or functionCalculator have ads?
Which is updated more often, PocketCAS lite for Mathematics or functionCalculator?
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