TestFlight - iOS beta testing on the fly.
Microsoft BitLocker - BitLocker is a full disk encryption feature included with Windows Vista and later.
TestFairy - Painless Beta Testing
Paubox - Paubox provides HIPAA compliant email encryption without the hassle of extra steps.
TestApp.io - A platform that helps both mobile app developers and owners to easily share their apps with everyone to get feedback before reaching publicly to Google and App stores.
OpenSSH - OpenSSH is a free version of the SSH connectivity tools that technical users rely on.