Welcome to CNET Australia's App of the Day, where you can see some of the coolest, silliest and most useful apps in action.
As its name suggests, Lego App4+ is designed for the wee sprouts, and it's accordingly simple and sweet. You build a truck; then you drive said truck along a bumpy road to collect coins. If you meet the coin target, you get a new piece that you can use on your truck (our favourite was the legs that you put on in place of wheels) — and then you can build a Lego object. Not exactly a brain-bender, but it's great for those crotchety car rides or supermarket trips.