Mystery pictures
A picture stays a secret until someone connects the dots.
Friends send each other 16 × 16 pictures as a code. Try one here — no app needed.
Library
Mystery pictures to solve on your own. Connect the points; the answer comes at the end.
Messages to send
Solve one here. In the app, send it with your own words.
How it works
1Draw on a 16 × 16 grid, or pick a ready picture.
2Send it as a link. Your message waits behind it.
3Your friend connects the dots to see what it is.
Draw your own and send it
Free on iPhone, iPad and Mac.
Get Coordigo — free