Alternatives to errProof

  • NaSC

    Its an app where you do maths like a normal person. It lets you type whatever you want and smartly figures out what is math and spits out an answer on the right pane. Then you can plug those answers in to future equations and if that answer changes,…

    Open Source Free Linux

  • Calcbot

    Calcbot is a simple and beautifully designed calculator for your iPhone, iPod touch and iPad. You’ll never open the built-in Calculator app again.

    Freemium Apple Watch Mac iPad iPhone

    Calcbot icon
  • Precise Calculator

    Programmable scientific calculator which has more than 150 mathematical functions and all of them return as many digits as you need. It can calculate with real numbers, complex numbers, fractions, vectors, matrices. Commands if, goto and print can b…

    Open Source Free Windows

    Precise Calculator icon
  • CalcTape

    CalcTape is a revolutionary new kind of pocket calculator. With CalcTape, also extensive calculations remain clearly structured. CalcTape makes the arithmetic process visible - you can generate intermediate results and subsequently correct or change…

    Freemium Windows

    CalcTape icon
  • SpeQ Mathematics

    SpeQ is a small, extensive mathematics program with a simple, intuitive interface. All calculations are entered in a sheet. In there you can freely add, edit and execute calculations. SpeQ supports all common functions, constants, and units. Further…

    Free Windows

    SpeQ Mathematics icon
  • Try It Online (TIO)

    TIO is a family of online interpreters for an evergrowing list of practical and recreational programming languages.Simply pick a programming language, and start typing. Once you click the run button, your code is sent to a TIO arena, executed in a s…

    Open Source Free Self-Hosted Web-Based

    Try It Online (TIO) icon
  • MyScript Calculator

    With MyScript Calculator, perform mathematical operations naturally using your handwriting. Easy, simple and intuitive, just write the mathematical expression on the screen then let MyScript technology perform its magic converting symbols and number…

    Free Android Tablet iPad iPhone Android

    MyScript Calculator icon
  • PasteOnline

    Pasteonline is a website where you can store any text online for easy sharing. The website is mainly used by programmers to store pieces of sources code or configuration information, but anyone is more than welcome to paste any type of text. The ide…

    Free Web-Based

    PasteOnline icon
  • Maya

    Maya is a slim, lightweight, GCal-syncing GTK+ Calendar application written in Vala, specifically for elementary OS . Also looks and works great on other GTK+ desktops. In elementary OS, Maya is known as Calendar.

    Open Source Free Linux

    Maya icon
  • Calculator

    The built in Calculator on the iPhone. Calculator is two calculators in one: rotate it to landscape to transform it from basic to scientific.

    Free iPad iPhone

    Calculator icon
  • galculator

    galculator is a GTK 2 / GTK 3 based calculator with ordinary notation/reverse Polish notation (RPN), a formula entry mode, different number bases (DEC, HEX, OCT, BIN) and different units of angular measure (DEG, RAD, GRAD). It supports quad-precisio…

    Open Source Free Xfce BSD Linux

    galculator icon
  • Random Number Generator

    Randomly generate millions of integers or floating point numbers in the desired radix (base), format, and numeric range. Generated random numbers may match any one of the 17 built-in probability distributions. - Specify numeric range with lower and …

    Freemium Windows

    Random Number Generator icon
  • Calculator by Xlythe

    Calculator is a simple 4 function calculator, with a panel that has more advanced functions when you need them. It includes history, real time graphing, base conversion, and more. It also comes with a lockscreen widget, a floating calculator, and a …

    Open Source Free Android Wear Android

    Calculator by Xlythe icon
  • HEXelon MAX

    HEXelon MAX is a science calculator. It solves math expressions like: Sin(Pi)-Root(-8;3)+3. Exchange rates table and currency converter are update from Internet by one click. Units converter makes easier to convert various units,14 categories of uni…

    Free Windows

    HEXelon MAX icon
  • Multi Share Calculator

    Multi Share Calculator is a portable tool that allows anything to be shared proportionally!

    Commercial Windows

    Multi Share Calculator icon
  • Calculator plus1

    Features a calculator:Standard arithmetic.The calculation of trigonometric functions in degrees radian.Calculation of the exponential function, the natural logarithm, logarithm.The calculation of power functions (x to the power y, x squared, the squ…

    Free Android Tablet Android

    Calculator plus1 icon
  • is a minimal pasting or note writing site. Features :- Custom Code Templates For Different Programming Languages- Clippr Voice To Read Texts For You- Markdown Syntax Supported To Make Your Text Supported- Completely Ads Free- Free & No…

    Free Web-Based icon
  • Random-Required

    A random string generator that can take numbers, letters, symbols, Chinese characters and arbitrary input as source to generate random string or text based on custom settings.

    Open Source Free Self-Hosted Web-Based

    Random-Required icon
  • Leon's Random Generators

    Several random generators for creating songs, poems, band names, and comic strips

    Free Web-Based

  • GNU Units

    The Units program converts quantities expressed in various scales to their equivalents in other scales. The units program can handle multiplicative scale changes as well as nonlinear conversions such as Fahrenheit to Celsius or wire gauge. Units com…

    Open Source Free Linux

    GNU Units icon