FreeNo adsNo sign-upsNothing collectedMade in the Blue Mountains

Ps and Qs

Telling apart the letters children reverse most — p, q, b and d

Ages 4-7 Letters and phonics Free, no sign-up

How it plays

The screen splits into patches, each one labelled with a letter. Letters drift about; your child drags each one into the patch it belongs to. When every letter is home, the level is won and the next one starts — a little gentler, in fact, because the drifting slows every five levels.

What it's for

Telling apart the letters children reverse most — p, q, b and d. Your child sets the difficulty on the first screen — how fast things move, how many there are — so the game meets them where they are rather than deciding they aren't good enough.

There is no score to lose, no timer running out on them, and no way to fail. A level ends when it's won. That's the only way it ends.

What it costs, and what we collect

Nothing, and nothing. There is no account, no advertising and no tracking of any kind. Which games have been played is remembered on your own device and is never sent anywhere. The full version is here, and it's short.

The p and the q were confusing the news, They'd swap themselves round just to muddle the clues, The b and the d were the worst of the crews — So come and sort out your Ps and Qs!

Where it lives

Ps and Qs lives in The Rustly Bush — letters and phonics. It works on a phone, a tablet or a classroom screen, and once it's been opened it keeps working with no signal at all.