The official Objectuve user guide
Six mechanics run the whole app. Pick one and watch it happen on a real screen — then read the page if you want the detail.

The core loop
Every habit due today sits in Today's practice with a ring beside it. Tap the ring — it fills green, the streak ticks up, 25 XP lands. That is the entire daily commitment.
What you'd tap
Today's practice, at the bottom of your dashboard
Grouped the way the app is.