Calculator of Formulas

Name: Calculator of Formulas
Rating: 3 (1 reviews)
Author: Robert Fraczkiewicz

By: Robert Fraczkiewicz

Includes graphical plots

Features & Capabilities

This app is focused on calculating and graphing mathematical formulas for everyday life and work. What distinguishes it from many other RPN calculators available at the App Store? Some of them allow for formula coding, do graphs, and are free, too. Unfortunately, most of these apps feature formulas of only one variable. In most real life applications, however, mathematical formulas have multiple variables! This app does all of the above plus the following:

Programs mathematical formulas with up to six variables.
Is simple to use.
Plots graphs with respect to a chosen single variable while keeping all other variables fixed.
Plots graphs when all the variables are changing along a user-prescribed vector. This relatively new concept of "ray plotting" enables user to probe a function in n dimensions by looking at its 1-dimensional slices.
Does graph tracing and enables graph manipulation with a simple set of intuitive touch gestures instead of button/pop up controls.
Saves most used formulas along with detailed description for later use.
Creates tables of calculated results that can be pasted into other applications.
Has an exhaustive set of help files and tutorials.

User Growth & Download Statistics

App

By:

Robert Fraczkiewicz

Rating:

3.00

(1)

Version:

2.5 Last updated: 2026-01-25

Version code:

881149820

Creation date:

2012-06-28

Compatible devices:

Size:

3.90MB

URLs:

Full description:

Source:

Apple Apps Store

Data ingested on:

2026-06-30

Compare stats and ranking:

Ranking

# 1,017,199 ▼ 11,386

Other rankings

#53 in include keyword 19 ▼ 4

For Developers

Monetize with App Pass Boost with Extension Booster

Contact the developer

Chrome-Stats does not own this Apple app. Please use these information below to contact the Apple app developer.

Developed by:

Robert Fraczkiewicz

Apple Apps Store

https://apps.apple.com/in/app/calculator-of-formulas/id536945435

User Reviews

Awesome app!!! I build race cars and run race teams for a living so I need to do lots of calculations all the time. I wanted to learn reverse polish notation and be able to program the formulas into memory. I searched for apps and came upon this one. I did not realize how great it was at first, which is a compliment to the author in its simplicity. The author totally hit the nail on the head. I love this app!! Now I have lots of calculations at my fingertips, ready to use and play with. When you get used to the way to graph functions in the app and the ability to change any variable and see it in the graphs, you can “see through the forest and actually see the trees”. I find myself playing with simple everyday relationships, putting them into some kind of mathematical statement and being able to “mix it up” and gain an understanding of something that was easy to miss without the ability to analyze it “fast and easy”. It would be nice to be able to label the variables. That would make it easier to enter the values. Having to remember which variables are which with different formulas makes it a challenge. Great job! Great app!

by wa*****, 2016-07-01

This app tried to re-invent the wheel and it failed horribly. Made zero sense.

by Mo*****, 2015-07-20

In summary, skip this one. There are much better rpn calculator apps out there. The calculator is very powerful, however if you press the help button, you can forget it. There is absolutely no way to return to the application. What programmer forgets such a simple thing as a means to return to the application? Was this app not tested? Forget about finding any contact info as this programmer doesn't provide any support. Nothing, nada, zip. So, you either need to know how to use a powerful rpn calculator or look for an app with programmer support, which is my suggestion.