Touchnote (Web & Android) FREE Custom Postcards until August 31 (Normally $1.49 Each)
This was posted 9 months 29 days ago, and might be an out-dated deal
Touchnote apps have always been free, but now it is also free (normally $1.49each) to send physical postcards until August 31. Sponsored by Samsung.
Free from the Android App (latest Version). iOS users need to use the Web interface.