ChompDuo

ChompDuo

Your iPhone Duo is a monster.

Eyes outside, a mouth inside. Fold the hinge and the jaws follow. Snap it shut and it CHOMPS, with a crunch and a thump you can feel.

An iPhone Duo opened like a laptop as the Cartoon monster's mouth: a purple face with rows of white fangs along the hinge

Coming soon to the App Store

Eyes outside.
A mouth inside.

Closed, a pair of silly eyes stares back at you from the cover screen. Tap them and they jump.

Open it, and the inside display becomes a mouth. Tap it to bite, or drag to squeeze it shut.

The Cartoon monster's googly eyes on the cover screen of a closed iPhone Duo

The same monster's wide-open mouth on the inside display of the open iPhone Duo

Fold it, and the jaws follow.

The Organic monster's slimy jaws apart on a half-folded iPhone Duo — Fold a littleThe teeth come together as the hinge closes.

The Mimic's teeth meeting as the iPhone Duo folds shut — Snap it shutCHOMP, with a crunch and a thump you can feel.

Pick your monster.

Every monster has its own eyes, teeth, sounds and insides. Tilt the phone and the face moves with you.

The Cartoon monster's eyes on a closed iPhone Duo

Cartoon Free

A big purple grin and googly eyes.

The Softie monster's eyes on a closed iPhone Duo

Softie

Buck teeth and rosy cheeks.

The Organic monster's eyes on a closed iPhone Duo

Organic

Slimy fangs and a swamp-green hide.

The Mimic monster's eyes on a closed iPhone Duo

Mimic

A treasure chest with teeth.

Cartoon is free. One purchase unlocks the others. No ads, no subscription, no account.

Inside the Mimic's mouth: a pile of gold coins and a purple tentacle

Some monsters hide treasure.

Open the Mimic and there’s gold inside. And something else.

The Softie monster's mouth: buck teeth and a pink tongue on a teal hide

Some are just adorable.

Softie would never bite. Probably.

ChompDuo

Coming soon to the App Store, for iPhone Duo.

No iPhone Duo? It works on any iPhone with iOS 27: tap the eyes twice and the mouth opens.