It’s time for some quirky engineering on your iPhone as we round up some of the best engineering applications available for the device.

No 10. Engineer’s calculator

Fittingly, we start off with the most basic requirement of an engineer with this handy calculator. This engineering calculator practically has no size limits and displays numbers in engineering notations. This calculator also features some good number of mathematical functions.

Click here to learn more about this app and its price

No 9. Pipe sizer

Input the flow rate and velocity of the flow and this calculator will give you the exact internal pipe diameter required. Works in both metric and imperial unit systems.

Click here to learn more about this app and its price