expiredTurn your iPhone/iPad in to a 2nd Mac screen w/ Duet Display: $10 (Reg. $20)

Duet turns your iPad or iPhone into the most advanced extra display for your Mac & PC”. And now, the regularly $20 app is on sale for $9.99. This is matching the lowest we have tracked since 2016. It has sat at $20 for a few months now so this is a great chance to pick up the ex-Apple engineered display app. Rated 4+ stars from thousands.