I don't have a smart phone... I've been using just a spot meter for the last 10 years so I'm with you on the plus sides of reflected meters.
However, I plan to use this particular camera in a different way. I'm not going to be metering each picture. At night I go by experience. For 'with me all the time / on the fly' pictures I'm going to use Sunny 16 or just take an incident reading where I am and use what brain power I have to adjust from there. It's just how I want to work with this camera. A nice change of pace.