Passive Income reads today's activity from Apple Health. When it shows nothing:
1. Check the permission properly. Open the Health app, tap your photo top right, then Privacy, then Apps, then Aura. Every category you want to earn from needs its own switch on. Granting some but not others is the most common cause, and it's easy to do by accident on the first prompt.
2. Health needs something to read. Step counting comes from your phone's motion sensors, so if you carry it in a bag rather than a pocket, counts are patchy. An Apple Watch fixes this for every metric.
3. Pull down to refresh on the Passive Income screen.
4. Give it a few minutes. Workouts recorded in other apps sometimes take a while to reach Health, and Aura can only read what's there.
Turning a permission off and back on again resolves most stubborn cases.
The rates, for reference: Run / Walk pays 8 per km, Exercise Minutes 1 per active minute, Mindful Minutes 1 per mindful minute, Steps 3 per 1,000, and Calories Burned 6 per 100 kcal.