Lego, and compatible building bricks, have caused controversy and consternation for years. Parents’ worst nightmare is stepping on them barefoot. Should you keep sets together or have tubs of different colours and/or sizes? Can you use ‘a Lego’ as a noun or is it ‘a Lego brick’? And if you’ve lost all the instructions, what should you build?

As we know from 'The Lego Movie', there are purists who insist on following instructions robotically and then there are freewheeling, creative types. The Brickit app offers a third way.

The free app is available on iOS or Android. There’s also a Pro premium option. At the time of writing, there was a free seven-day trial of Pro, after which it costs £3.58 a month or £42.99 a year.

Once the app’s installed, spread out your bricks flat. Remove large base blocks first. Then spread out your Lego well, so every brick is visible.

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