Streaks 66 - Daily Habit AI is an iOS habit tracker that frames personal change as a 66-day challenge, based on the commonly cited notion that a new behaviour takes roughly two months of repetition before it feels automatic. You choose a habit, set your commitment level, and the app tracks each day of your streak while a built-in AI coach offers motivation, tips and reflection prompts.
The app is deliberately simple. It avoids overwhelming dashboards and instead focuses on a single, clear challenge loop: check in daily, watch your streak grow, and receive encouragement from the Habit Coach AI when motivation dips. Three difficulty modes - Perfect, Normal and Easy - let beginners and disciplined users set the bar where they want it, and reminders help prevent missed days.
Streaks 66 is free to download, with a free tier that supports one active habit and a small number of AI coach messages. A premium subscription unlocks unlimited habits and unlimited coaching conversations, with monthly, yearly and lifetime purchase options available through the App Store.
