Silence is no longer available on Google Play
The Google Play link on the website & README is dead and gives a 404: https://play.google.com/store/apps/details?id=org.smssecure.smssecure.
The Google Play link on the website & README is dead and gives a 404: https://play.google.com/store/apps/details?id=org.smssecure.smssecure.