How you mean "track when and where the 12% apr ends up"?
You have to claim it once per month (I can't find the option on "Ecency" mobile app, but for Peakd.com frontend):

How you mean "track when and where the 12% apr ends up"?
You have to claim it once per month (I can't find the option on "Ecency" mobile app, but for Peakd.com frontend):

Interesting. Been using ecency.com. No wonder I have been so confused. There is no interest claim button service here. Very surprised ecency has not put this feature high on their updates list.
Thanks for the response @xchng. Maybe I'll try a different front end to find the claimable interest.
You are welcome my friend!
I just checked the Desktop version of Ecency - they show the interest rate but not an "claim" option 😕
I can recommend Peakd.com!