andOTP - andOTP is a two-factor authentication App for Android 4.4+
Toggl - Toggl is an online time tracking tool. It features 1-click time tracking and helps you see where your time goes. Free and paid versions are available.
Aegis Authenticator - Aegis Authenticator is a free, secure and open source app to manage your 2-step verification tokens...
Harvest - Simple time tracking, fast online invoicing, and powerful reporting software. Simplify employee timesheets and billing. Get started for free.
OTP Auth - The app for calculating one-time-passwords on iPhone and iPad.
RescueTime - Time management software that shows you how you spend your time & provides tools to help you be more productive.