Features 2FA authentication Devise authentication with email confirmations, password resets, and a more secure two-factor authentication with OTP codes. Teams Team support with distinct team roles and an invitation system. Let invited users join with a registration or accept invitation after signing in. Subscriptions There is no revenue unless you charge money. Business Class implements team subscriptions that team owners can start, stop, resume, and cancel. Internationalization Support new languages by providing the YAML translation files. English translation is provided and users can choose their timezone and locale. Admin interface A custom-built admin area to manage everything. Assign admin privilages for your support staff, admins, and super admins. API API boilerplate with token-based authentication and throttling.