Stealthy: Secret Messenger - Chat anonymously with friends & strangers
Notopass - Share your accounts without giving username/password
Berkanan - Chat with people nearby. Even offline, on an ✈️.
ShareAccount - Share your account without giving out your password
Roomvine - Chatrooms for real life venues, neighborhoods and events
1Password - 1Password can create strong, unique passwords for you, remember them, and restore them, all directly in your web browser.