Overview

Features & Capabilities

A full-function, programmable, graphing scientific calculator designed to be very quick and easy to use, but with the added power of customisation. Tape display is visible while you type, and a swipe away from full screen view. Select and directly input any number from tape, undo or edit calculations. Easily create and use custom functions, store equations and useful numbers, use complex functions with multiple variables - fully programmable. Plot functions on a zoomable graph, export a high-resolution pdf copy. Dictate calculations and numbers for statistical analysis, with instant results. Completely free.

• no adverts, no in-app purchases. • full set of scientific functions, unlimited nested brackets. • swipe to undo, step by step. • easily edit calculations and re-calculate. • optionally enter and edit calculations in standard maths format, rather than calculator order. • visible memory store. • tape output shows all calculations – swipe for full screen. • never type the same number twice – direct input from tape. • instantly convert between more than 120 different units. • zoomable text for easy reading and editing. • fully editable useful numbers page – store constants, conversion factors, commonly used numbers, tappable URLs or email addresses, or any text. • create, store and use functions for unit conversions or calculations, as simple as copy and paste. • dictate calculations, or lists of numbers for statistical analysis, get instant results. • create, edit and use complex functions with up to ten inputs or outputs – solve quadratic and cubic equations, calculate mortgage payments, compound interest, body mass index, triangles, the day of the week for any date, sunrise and sunset times and direction for any date and place, statistics (including normal, Student's T, Chi Square and F cumulative probability functions) and more – create or keep exactly what is useful, edit or delete what isn’t. 50 functions included. • fully zoomable graphing capability, plot one or two functions on a graph. Export PNG or high-resolution large pdf copies. • ideal for complex or repetitive tasks – custom functions reduce errors. • full help included.

User Growth & Download Statistics

App
By:
Hugh Pelham
Version:
17.4 Last updated: 2026-06-21
Version code:
887247573
Creation date:
2017-01-09
Compatible devices:
Size:
4.66MB
URLs:
Privacy policy
Full description:
See detailed description
Source:
Apple Apps Store
Data ingested on:
2026-07-15
Compare stats and ranking:

Contact the developer

Chrome-Stats does not own this Apple app. Please use these information below to contact the Apple app developer.
Developed by:
Hugh Pelham
Apple Apps Store
https://apps.apple.com/co/app/function-calc/id1188227053?l=en-GB

User Reviews

Hugh, I have dedicated some times to evaluate your product. I rate it as 5 although it needs some enhancements. Kindly please find time in future versions to include if , for , else or then statements, loops, max and min to make it the greatest. Even more so it is able to add graphics on the background for a certain repetitive problem. I salute you even more as you are giving it free to humanity and for that you are truly blessed. Hope to see these enhancements soon and more feedback from me. Thank you very much! Vernon P., PE, MAA emeritus
by Ve*****, 2024-03-28

As a programmer I use the calculator to work with large numbers and sometimes I need to see more digits. For example: 268,697,600 x 512 shows 1.37573171e11 but is missing the last (9th) digit in the general display - although in the history tab it displays accurately, but this can be confusing and annoying.
by si*****, 2023-11-06
View all user reviews ›

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