Azendoo - Azendoo is a collaborative task management solution that helps companies to get work done easily and in teams.
GetBadges - GetBadges is a gamification platform which allows developers to play and compete while using software development tools.
Taskade - Make lists, organize your thoughts, and be inspired to get things done. Taskade is a collaborative space for your tasks.
Goals & Challenges by Fini - A social way to gamify goals and habits with challenges
Trello - Infinitely flexible. Incredibly easy to use. Great mobile apps. It's free. Trello keeps track of everything, from the big picture to the minute details.
HabitScript - Gamify your coding time