This is great news! Such a big fan of the work you guys are doing at Whisper Systems. We are in the middle of an update to Umbrella App (which contains lessons

This is great news! Such a big fan of the work you guys are doing at Whisper Systems. We are in the middle of an update to Umbrella App (which contains lessons on digital and physical), so will add the latest Signal changes to it in the next few days. If anyone is interested in taking a look (free, open source, code reviewed, Android) please feel free: https://play.google.com/store/apps/details?id=org.secfirst.umbrella&hl=en_GB https://play.google.com/store/apps/details?id=org.secfirst.u...