Apps similar to Sticky Calculator include SpeedCrunch, which is free and open source. Other options are Fossify Calculator, OpenCalc, CalcYou and NerdCalci. Calculators like Sticky Calculator are a crowded field, with more than 100 alternatives for Android, Windows, Mac, iPhone and Linux.
Kalk is a convergent calculator application built with the Kirigami framework. Although it is mainly targeted for mobile Linux platforms, it can also be used on the desktop.
Germany
EU
OpalCalc is a brand new type of calculator for the PC. As easy to use as Notepad or a word processor, OpalCalc allows natural language in the sum and multi-line support so you can go back and adjust your previous calculations on the fly.
Hissab is a simple and intuitive calculator, unit-convertor and productivity application.
Scientific calculator with arbitrary precision and portrait and landscape mode. Fraction and periodic numbers support. Looks like a real calculator! The calculator has up to 100 digits of significand and 9 digits of exponent.
SloveniaEU
Numby transforms how you calculate. Express math naturally, convert units and currencies, track your work, and share results beautifully - all in one place.
Hong Kong SAR China
As a kid, I loved playing with a calculator. Whether a calculator watch or a TI-89, it offered an intoxicating command over impossibly large numbers and could be hacked to share messages with friends. Somewhere along the way, the calculator became another boring tool.
United States
Introducing Best Loan Calculator, using methods trusted by financial professionals for years. It’s as easy to use as a regular calculator and helps with auto loans, mortgages, and other financing.
A text calculator for natural language expressions, variables & unit conversions, with a vim-style TUI. Inspired by Numi.
NumWorks designed an intuitive and evolutive graphing calculator to make learning maths easier.
FranceEU
Omni Calculator is a web/mobile calculator that solves concrete problems such as mortgage payment, gross margin, body mass index, break-even point, etc. It's very user-friendly, flexible and usable on web, mobile and as an embeddable web widget.
PolandEU
