Basics
What is a habit tracker? A simple guide with examples
A habit tracker shows you which days you did a habit. How it works, the different types and how to start in five minutes, with research on why it helps.
The Habit Tracker Blog
What makes habits stick: real numbers, current research and practical guides that work in everyday life.
Science
How long does it take to form a habit? (Spoiler: not 21 days)
The 21-day rule is a myth. What the research actually found, why it takes some people 18 days and others over 250, and what that means for you.
Comparisons
The best habit tracker apps in 2026: an honest comparison
Habitica, Loop, Streaks, Habitify, TickTick or Everlo? We compare the best-known habit trackers and say who each one is right for.