Loading…
CompareOpen in App Store
★★★★★
Average rating on the App Store. Apple doesn't publish how many ratings each star has.
This app isn't in any of our charts yet.
You can now unlock PocketCAS Pro right in this app. This update also explains results without a value, makes large numbers easier to read and fixes a number of smaller things. New in version 2026.2: - Unlock PocketCAS Pro in the app with a one-time purchase, without a subscription. It adds calculation steps, integrals, the equation solver, hundreds more functions, and bigger plots and matrices. Family Sharing is included, and Restore Purchases is in the main menu. - Under a result you now see every suggestion. Some come with PocketCAS Pro, and a tap on one shows how to unlock it. The same goes for a Pro function that you type. - When a result has no value, PocketCAS now says why, such as Undefined or Not invertible, often with a short reason below. A typing error is marked in the input, and a suggestion offers the fix: sin x becomes sin(x). A stopped calculation shows how long it ran and offers Calculate Again. - Next to an exact result, the ≈ line now also shows the decimal value of a result with units. Very large and very small numbers read as 2.43 × 10¹⁸ instead of 2.43E+18, and when rounding changed a decimal result, the suggestion Exactly shows the exact value. - Results and inputs show large numbers in groups of three digits, such as 1 234 567. Settings > Digit Grouping offers another separator, or none. The editor and copied text keep plain digits, and a number too long for the screen continues on the next line. - On iOS 26, the titles of What's New and the welcome pages are no longer cut off at the top. - On an iPhone in landscape, the Tools menu shows all its tools without scrolling. - Plot Settings show a swatch next to each color, and a color that is not in the list appears as Custom Color. - VoiceOver reads ( and ) as parentheses instead of braces, and selecting entries in Select mode works as expected. The German and French texts are clearer. - The previous version of PocketCAS still opens your documents. It shows the new reasons as plain text next to the result. Changes from version 2026.1: - Under a function's result, suggestions show its derivative with the answer, and a small plot sits next to it. Tap one to add it to your document. - Results look like a math textbook, and long results wrap to the width of the screen. - Clearer 2D plots with a finer grid, and 3D surfaces with soft light and shading. Plots in a document pan, turn and zoom right where they are. - A new keyboard look, with your recent functions right above it. - A short welcome for new users, and the function reference now lists every function, with a PRO badge on the ones that PocketCAS Pro adds. - On iOS 26 and later, PocketCAS uses Apple's new design, Liquid Glass, and has a new icon. - Brackets close by themselves. If something works differently from what you are used to, or you find a problem, please write to us.
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