You are using an TechniCalc Calculator Offers a Modern Interface and is Available for iOS and Mac February 3, 2021 No matter your Apple device, TechniCalc Calculator is a modern and powerful way to solve whatever math you’re needing to solve. Along with normal logs, sins, and cosines, the app supports more advanced functions like imaginary numbers, vectors, matrices, sums and products, and differentiation and integration. It’s also easy to convert between a wide variety of units that can be combined. There are more than 100 constants built in for engineering, physics, or chemistry. You can also add in your own constant and give it a custom symbol.