Notopass - Share your accounts without giving username/password
Aboardly - IFTTT for automated customer emailing
1Password - 1Password can create strong, unique passwords for you, remember them, and restore them, all directly in your web browser.
Intercom - Intercom is a customer relationship management and messaging tool for web businesses. Build relationships with users to create loyal customers.
SuperTokens - Open Source User Authentication - An Alternative to Auth0 / Firebase Auth / AWS Cognito
Customerjet - Resolve live chats faster by watching where users get stuck