Comparison

PocketCAS vs COMath

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

Head to head
About

PocketCAS

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
Features
Read full description

PocketCAS is a graphing calculator for iPhone and iPad. It graphs your functions, finds derivatives and works with exact fractions and roots. Everything runs on your device, so it works without internet or an account. An in-app purchase unlocks PocketCAS Pro, with steps, integrals and the solver. Graphs - 2D plots of functions, implicit equations, polar and parametric curves and vector fields, two functions per plot. PocketCAS marks zeros, extrema and intersections. In full screen, tap a mark to read its coordinates. - 3D surfaces with soft light and shading. Drag to turn them, pinch to zoom. Derivatives - Under each function, a suggestion shows its derivative, already worked out, and a small plot sits beside the result. Tap one to add it to your document. - Exact derivatives of products, quotients, roots and chains, written the way your textbook writes them. Exact results - Arithmetic with exact fractions and roots, trigonometric, exponential and logarithmic functions. - Matrices: determinants, inverses and products. - Your own functions, with conditions and recursion. - Common units and physical constants. Reads like your textbook - Results look the way they do in a textbook: fractions, roots, powers and matrices. - A math keyboard with every function in reach, and a hint shows what goes between the brackets. Made for daily work - Documents keep your calculations and plots together, and iCloud syncs them between your devices. - Export and print plots, entries or whole documents (with a watermark). - Help built in: the function reference explains every function with examples, and tutorials get you started. Unlock PocketCAS Pro One purchase in the app unlocks everything in PocketCAS Pro, without a subscription: calculation steps that name the rule behind each step, integrals, limits, series and sums, equation and system solving, factoring and simplifying, eigenvalues, differential equations, scripts, plots with more than two functions, imports of documents and CSV data, larger matrices in the editor, exports without a watermark, and suggestions with zeros, extrema and integrals. Family Sharing is included, and Restore Purchases is in the main menu. Until you unlock it, the function reference marks the functions of Pro with a PRO badge. PocketCAS Pro is also sold as its own app; you need only one. Questions or ideas? Write to us at https://pocketcas.com/support. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://pocketcas.com/privacy.php

About

COMath

This app acts as a personal math tutor, offering support and practice for arithmetic, algebra, and geometry. It provides over 100,000 word problems with step-by-step solutions and an equation solver to help students develop their math skills.

Highlights
  • Personalized math tutoring
  • Arithmetic practice (addition, subtraction, multiplication, division)
  • Over 100,000 math word problems
  • Step-by-step equation solving
  • Algebra and geometry support
  • Practice without pencils
Features
Read full description

COMath is a fun math and brain-training app for students and puzzle lovers of all ages. - Practice addition, subtraction, multiplication, and division - Solve 100,000+ math word problems with explanations - Learn algebra step by step with the equation solver - Enjoy number puzzles like Sudoku, Calcudoku, Fillomino, Minesweeper, Calculate 24, and more Practice math, sharpen logic, and enjoy solving challenges anytime, anywhere.

Screenshots

PocketCAS4 screens
COMath4 screens

Verdict

The call

The clearest difference is ads: PocketCAS at none against COMath's shown. PocketCAS also leads on monetization model (free vs ad-supported) and ratings volume (204 vs 45). COMath's advantage is update cadence (monthly vs every 3 months) and rating (4.8 vs 4.6). On price and in-app purchases 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

COMath holds the better App Store score, 4.8 against 4.6. Both are backed by a comparable volume of ratings — 204 and 45 respectively. Written reviews point the same way: 91% of PocketCAS's written reviews are positive against 100% of COMath's.

UpkeepUpdate frequency

PocketCAS ships an update every 3 months, COMath monthly. The most recent releases landed on October 19, 2026 and October 7, 2026 respectively.

Scorecard8 real differences · 2 level
PocketCAS versus COMath: the parameters behind the verdict, then further details
ParameterPocketCASCOMath
PriceFreeFree
Rating4.6 (204 ratings)4.8 (45 ratings) — better
Positive reviews90.8% of reviews100.0% of reviews — better
Number of ratings204 — better45
Update frequencyEvery 3 monthsMonthly — better
AdsNo — betterYes
In-app purchasesNoNo
MonetizationFree — betterAd-supported
DevicesiPhone, iPadiPhone, iPad, iPod, Mac — better
Requires iOS18.015.0 — better
Further details — not scored
Size42 MB89 MB
Age rating4+9+
DeveloperTiming Software GmbHJianfeng Wu

Customer experience

PocketCAS

All ratings204 ratings
Positive91.7%
Neutral4.9%
Negative3.4%
Written reviews152 reviews
Positive90.8%
Neutral1.3%
Negative7.9%

COMath

All ratings45 ratings
Positive97.8%
Neutral2.2%
Negative0.0%
Written reviews4 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Bugs and requests

PocketCAS

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

COMath

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

PocketCAS

No in-app purchases

None

COMath

No in-app purchases

Questions

Is PocketCAS free?
PocketCAS is free to download, with no in-app purchases.
Is COMath free?
COMath is free to download, with no in-app purchases.
Which has better reviews, PocketCAS or COMath?
COMath is rated higher. PocketCAS averages 4.6 out of 5 from 204 ratings, while COMath averages 4.8 from 45 ratings.
Do PocketCAS or COMath have ads?
COMath shows ads; PocketCAS does not.
Which is updated more often, PocketCAS or COMath?
PocketCAS ships an update every 3 months, and COMath monthly. Most recently, PocketCAS was updated on October 19, 2026 and COMath on October 7, 2026.

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