
Infuse
In-App PurchasesDuo-native
Your own library, widescreen in a pocket.
The Duo becomes a ring box: open it to propose.
Insania Labs
On the Duo: Duo-native. Made only for the Duo by Insania Labs: the cover screen is the closed lid, the hinge angle opens the box, and the open Studio sets the box beside the ring steps, as its Duo simulator captures show. Version 1.0 is waiting for App Review. Checked October 7, 2026.

Anyone with a real ring box already: this is for the proposal story, not the jewellery.
Turns the iPhone Duo into an engagement ring box. Choose a ring, metal, velvet, diamond size and the message on the inside of the lid, arm the box and close the phone; when it opens, the lid rises with the hinge and the ring turns in real time on its cushion. The classic ring, a silver band, midnight velvet and the classic message are free; Studio Unlock, single ring designs and an Everything bundle are one-time purchases, with no subscription.
Version 1.0 is waiting for App Review and is not on the App Store yet.