Habitica - Habitica is a free habit building and productivity application.
Calendly - Say goodbye to phone and email tag for finding the perfect meeting time with Calendly. It's 100% free, super easy to use and you'll love our customer service.
LifeRPG - Automatically prioritize your goals and gain XP for achieving them. Features:
Acuity Scheduling - Automate your client bookings, cancellations, reminders & payments using the worlds friendliest online scheduling software.
Hapit - Hapit is a habit tracking app that helps you take your procrastination state and convert it into actual habits.
Doodle - Make meetings happen. With Doodle, scheduling becomes quick and easy.