This is a free app for iPads and iPhones.
Toolbox is a great way to introduce lots of measuring devices into a wide range of lessons from science to PE, geography to maths.
In one app, there is a whole range of digital, accurate and engaging tools to enhance many areas of the curriculum.
Time needed to learn how to use it and get going:
What the SkyPaw says about Toolbox:
"Toolbox" is a set of 14 handy and elegant measuring tools. It turns your smart device into a swiss-army-knife that measures everything you will ever need.