Text editor meets calculator in a new app that quite literally solves all your problems. If you’re as maths-challenged as I am, you’ll have moments when you open up your iPhone’s calculator app to work out an everyday sum (tax, anyone?), only to draw a blank on how to actually calculate it. Finally, the app store has birthed a maths app that is intelligent enough to do all the sums without requiring its user to know anything remotely mathematical. Developers Acqualia have released the Soulver calculator app, a cross between a calculator and a version of Siri that actually works. Instead of having to remember how to calculate those tricky basic everyday maths sums like percentages, currency conversion or tax, Soulver does it all for you. To use the app, simply write out your whole question as a sentence. If you make a mistake along the way, you don’t have to start over again like you do with most calculators.

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Soulver Calculator App: A Simple Way to Solve Complex Sums