That's why I've developed Drylendar, an iOS app translated in French (I'm French) and English that allows people to track their drink every day in a beautiful calendar. To help people staying motivated, I've added medals to unlock and possibility to add friends to share calendars and positive energy.
My app is available on App Store for 10 days, and it's been 215 days that I didn't drink alcohol at all, I've never felt healthier & happier!