Sketch on the cover screen, then open up for a bigger canvas.
Graphics & Design · iPhone Duo app
Clamshell
by William Smolen
A pocket letterpress: ink the plate, close the phone, open it to see the print.
iPhone Duo support
Confirmed
- Confirmed in
- App Store description, version 1.0
- Version released
- Price
- $2.99
- Last checked
Checked by hand against the App Store.
Screenshots
Clamshell on the App Store
Screenshots from the App Store. Tap one to see it full size.
On iPhone Duo
Clamshell on iPhone Duo
Clamshell is a pocket letterpress. Roll ink over your words, gently close iPhone Duo, then reopen it to reveal the impression; the hinge is part of the press.
- Developer
- William Smolen
- Category
- Graphics & Design
- Price
- $2.99
- Platform
- iOS · iPhone Duo
Does Clamshell support iPhone Duo?
Yes. iPhone Duo support is confirmed in the App Store description of Clamshell version 1.0, released Nov 5, 2026.
How much does Clamshell cost?
Clamshell costs $2.99 on the US App Store.
Who makes Clamshell?
Clamshell is made by William Smolen and is in the Graphics & Design category.
