All children love a good session with a blackboard and chalks, but they’re not exactly the most portable of items. So, if you’re out and about, you could do worse than invest in Bord, an app that recreates the experience (without the dust – yay!). You can choose from a black or green background, six different coloured chalks, three sizes and, of course, the ubiquitous board rubber, although you can delete the whole image by shaking the screen. Great for practising writing, drawing and playing schools on the move. 69p, The App Store.