66 is the household name in 66 streaks, but it's far from the only option. We track 243+ alternatives and competitors on iOS — many free, many higher-rated than you'd expect.
This app helps you build lasting habits through a focused 66-day challenge. Track your progress with simple check-ins, visual grids, and reminders. It's designed for real-life goals with no clutter or accounts required.
This app transforms self-improvement into a game by turning your goals into daily quests, rewarding you with XP and streaks. It offers personalized habit programs, gamified progress tracking, and a suite of tools to support your journey.
This app helps you build positive habits and break negative ones by tracking your daily progress. Achieve consecutive day streaks for up to 24 tasks, with iCloud syncing, reminders, and health app integration.
What We Love
👍 Simple and intuitive interface
🚀 Highly motivating for habit building
💡 Customizable icons and themes
🔓 No subscription required
👍 Seamless Apple Watch integration
🚀 Helpful for tracking progress and maintaining streaks
66-Day Habit & Streak Tracker tops our 66 streaks apps ranking as of July 2026, with a 5.0-star average from 1 App Store ratings, and it's free to download.
Are there free 66 streaks apps for iPhone?
Yes — 19 of the top 66 streaks apps we rank are free to download, including 66-Day Habit & Streak Tracker and Life Reset: 66 Day Habit.
Does 66-Day Habit & Streak Tracker have ads or in-app purchases?
66-Day Habit & Streak Tracker has no ads and has no in-app purchases, according to its App Store listing as of July 2026.
How many 66 streaks apps are on the App Store?
We track 243+ 66 streaks apps on the iOS App Store as of July 2026, ranked by rating, recency, and analysis of real user reviews.
What is the 66-Day Habit Tracker?
The 66-Day Habit Tracker is a focused daily routine builder designed to help users establish lasting habits through a 66-day challenge. It offers simple check-ins, visual progress tracking, and reminders without any clutter or account requirements.
How does the 66-day challenge work?
The app is built around the concept that habit change takes repetition, with 66 days providing a clear beginning, visible momentum, and a finish worth celebrating. This structured period encourages commitment to fewer, impactful goals.