Comparison

PocketCAS vs GeometrySoln

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

GeometrySoln

Features
Read full description

GeometrySoln is Geometry Calculator for Students and Teachers, which makes Geometry Calculations very Easy and Quick. From Basic Calculation of Perimeter of a Square, to Calculating a Volume of a Cube, you can get it all. It displays the formulas to calculate the same and also it will calculate, the Perimeter, Area, Volume, etc, It will also display a Detailed Calculation Steps on how the result was obtained. You can work with Following Shapes Square Triangle Rectangle Parallelogram Trapezium Quadrilateral Rhombus Polygon Circle Annulus Ellipse Torus Ball Cube Parallelepiped Cylinder Cone Prism Pyramid Octahedron Capsule Hemisphere Rectangular Prism Tube

Screenshots

PocketCAS4 screens
GeometrySoln4 screens

Verdict

The call

The clearest difference is in-app purchases: GeometrySoln at none against PocketCAS's 1. GeometrySoln also leads on iOS requirement (9.0 vs 18.0). PocketCAS's advantage is update cadence (every 3 months vs every 59 months). On price, 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

Both are free to download. PocketCAS sells 1 one-off in-app purchase. GeometrySoln asks for nothing beyond the download.

UpkeepUpdate frequency

PocketCAS ships an update every 3 months, GeometrySoln every 59 months. The most recent releases landed on October 23, 2026 and October 19, 2026 respectively.

Scorecard3 real differences · 7 level
PocketCAS versus GeometrySoln: the parameters behind the verdict, then further details
ParameterPocketCASGeometrySoln
PriceFreeFree
Rating4.6 (204 ratings) — better—
Positive reviews90.8% of reviews—
Number of ratings204 — better—
Update frequencyEvery 3 months — betterEvery 59 months
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree—
DevicesiPhone, iPadiPhone, iPod
Requires iOS18.09.0 — better
Further details — not scored
Size42 MB16 MB
Age rating4+4+
DeveloperTiming Software GmbHAlakmalak Technologies Pvt. Ltd.

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

GeometrySoln

Not enough reviews yet to summarise bugs or requests.

In-app purchases

1 purchases

PocketCAS

One-time1
  • PocketCAS Pro$29.99
None

GeometrySoln

No in-app purchases

Questions

Is PocketCAS free?
PocketCAS is free to download, with in-app purchases available.
Is GeometrySoln free?
GeometrySoln is free to download, with no in-app purchases.
Do PocketCAS or GeometrySoln have ads?
Neither PocketCAS nor GeometrySoln shows ads.
Which is updated more often, PocketCAS or GeometrySoln?
PocketCAS ships an update every 3 months, and GeometrySoln every 59 months. Most recently, PocketCAS was updated on October 23, 2026 and GeometrySoln on October 19, 2026.

Other comparisons