Free iOS app fans the QWERTY keys out from the bottom corner, so that you can easily type with one hand. (Ronald McLaren)

Are you a one-armed bandit on your phone? For those who still type mostly with one thumb, there’s a keyboard out there for you — Thumbly.

This custom keyboard fans the familiar QWERTY layout from the bottom corner of your phone, so you can type with one hand easily.

The app works for righties and lefties, and the ambidextrous can switch between the two with a simple toggle.

Sure, it’s a niche product. But if that’s the way you type, it’s an instant ergonomic upgrade.

And if you want to type the normal way or if you lend your phone to someone, the normal keyboard is only another tap away. Free, for iOS devices.

Hayley Tsukayama