Games similar to Achiever include Loop Habit Tracker, which is free and open source. Other options are Habitica, Lunatask, Vikunja and Amazing Marvin. In total there are eight Habit Trackers like Achiever for Android, iPhone, the web, iPad and Windows.
Loop Habit Tracker (AKA uhabits) helps to create and maintain good habits in order to achieve their long term goals. Detailed graphs help you to better track the progress of your habits.
India
Transforms habit and task management into a gamified system with customizable avatars, in-game rewards, team quests, collectibles, and flexible input of habits, dailies, and to-dos. Track progress, join challenges, and access features on web and mobile.
United States
Lunatask is an all-in-one encrypted to-do list, habit tracker, journaling, life-tracking and notes app. It remembers stuff for you and knows what to work on next. Choose from a variety of productivity techniques like Kanban, Must/Should/Want Method, Eisenhower Matrix, or Time...
Czechia
EU
Think of Vikunja like the notebook you have with all your things to keep track of. But better.
GermanyEU
A comprehensive task management app that employs behavioral psychology to enhance productivity. Features include customization, task organization, planning tools, timers, habit tracking, visual timeline, focus mode, procrastination wizard, gamification, sync options, and mobile support.
Switzerland
Beeminder is goal-tracking with teeth. We plot your progress on a yellow brick road to your goal and if you go off track we take your money!
United States
Track all your goals & habits in one place, with flexible reminders to hold yourself accountable, and beautiful charts to keep you motivated.
stickK is the most motivating habit tracker out there that challenges you to stick(K) to your word, regardless of the goal!.
