StreakFlow is a habit tracker with a twist: a dedicated mode for quitting bad habits, not just building good ones. Quitting smoking isn't a checkbox — it's a clean-day counter you protect. Flexible scheduling (day-of-month, every N days), mood tracking, 30-day challenges, streak repair, Apple Watch and interactive widgets. No account, data stays on your device. 14 languages. One-time purchase, no subscription trap.