In the early days, before the invention of calculators, people used various methods for addition and subtraction. Primitive humans used hands and toes to calculate things, which was the simplest way to calculate anything. As people became more civilized, hands and toes were not enough. Merchants used seeds and stones to count and keep track of big numbers. Then came the Abacus, a hand-operated mechanical calculator that comprised a frame and beads that could be slid along the rods. Though Abacus was the perfect device to do calculations, it was not pocket-friendly. Hence people had to improvise.
Later came various other devices, namely the Arithmometer, Grant Mechanical Calculating Machine of 1877, Comptometer, and many more. Each new invention was superior and advanced compared to an earlier version. The early 1970s witnessed the rise of the very first calculator in a chip. But they were too costly for most buyers. By the end of 1980, calculators reached the form we recognize today.
With the advancement in technology, calculators started entering our smartphones in the form of play store apps. At some instance or the other, everybody requires a calculator. From calculating your tip at a restaurant, verifying a grocery store bill total, to doing the algebra, we need a calculator for all. We are so accustomed to calculators that even to perform some basic addition; we turn to our smartphones, don’t we?
“CalcKit: All-In-One Calculator” by CalcKit is a play store app that is a collection of calculators that you will ever need. CalcKit features 150 FREE Calculators and Unit Converters, packed with a highly customizable Scientific Calculator. With this calculator installed on your smartphone, you can right away uninstall all other calculators that perform only a function or two.
While the scientific calculator yields instant results, it supports the copy-paste function with the help of an editable cursor and input. The scientific keypad is customizable, has memory buttons, can show advanced calculation history and a floating calculator widget.
150 free calculators include Algebra, Geometry, Electronics, Finance, Unit Converters, Date Calculator, Time Calculator, Analytical geometry, and many more. The inbuilt currency converter converts as many as 180 currencies and crypto in a jiffy and is available offline for you. “CalcKit: All-In-One Calculator” has a smart search enabling you to locate a specific calculator at ease. You can also create shortcuts on the home screen.
If you wish to create a customer calculator, CalcKit provides you that option too. Build your own calculator by adding up to 25 custom variables. A detailed tutorial will help you in doing so, with examples. CalcKit can help your kid in calculating all the necessary formulas related to 2D and 3D shapes. Starting from Prime number checker, Greatest common factor & Least common multiple, Combinations, and permutations, to complex Matrix calculations, CalcKit has it all. You can also convert one unit to another using CalcKit.
Though you can use a particular calculator only by clicking on the CalcKit widget and then selecting from the list, CalcKit is worth the hype.