InstaCalc is described as 'An online calculator that allows the free form mixing of numbers and words, and saves calculations automatically' and is a Calculator in the education & reference category. There are more than 10 alternatives to InstaCalc, not only websites but also apps for a variety of platforms, including Windows, Mac, Android and iPhone apps. The best InstaCalc alternative is Numi, which is free. Other great sites and apps similar to InstaCalc are Soulver, OpalCalc, NoteCalc and Caligator.
Numi is a handy calculator app for macOS. It allows to describe tasks the natural way and instantly get an accurate answer. For example, $20 in euro - 5% discount or today + 2 weeks. Numi is not limited to simple calculations, it can solve expressions of any complexity, with...
Do you ever grab a calculator & the back of an envelope to work through an idea or problem that involves some math?
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.
A kickass, open-source calculator that lets you do calculations and unit conversions naturally, with features like:
CCCalc is a calculator with tape, you can correct any printed character with, and the tape recalculates everything itself.
For jotting down quick calculations. Mix free form text with calculations and see the results appear in the right hand margin as you type.
A web based calculator with a clean interface that allows commenting, creating variables and more. The website also provides more tools like converter, VAT calculator, and more.
CalculatePlus is the new way of performing your daily basic calculations, such as basic +/- or percentage calculations on the Web.
Qlate is a combination of a calculator and a notepad for dynamic calculations. It's more powerful than a simple calculator and more intuitive than an Excel sheet. All that power and intelligence is wrapped behind a beautiful, clean and minimal user interface.
Napkin is a unique mix between a notepad and a calculator. Doing quick calculations on your phone has never been easier!
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