Your day streak counts consecutive days of Morning Imprinting. It is a mobile app feature: log a Morning Imprinting entry each day and the streak grows.
What earns the streak
Only Morning Imprinting entries earn the streak. Evening Programming entries are valuable training and are logged the same way, but they do not affect your streak either way.
What the streak screen shows
Your current day count
The date your streak started
Your max streak
A This Week grid showing which days you've logged this week
Sometimes a percentile, such as "Top 5%"
Your longest run also appears as Your Best Streak on the Profile screen.
What happens if I miss a day?
Nothing punitive. There are no penalties, and nothing gets locked or taken away. Missing a day simply means your current count starts over with your next Morning Imprinting entry, and your best streak stays on record. Just pick the routine back up the next morning.