Nutrition Coaches, How does your coaching program work?

Looking for some insight to how you guys run your nutrition coaching business. Do you charge monthly or per session? Do you put your clients onto a routine schedule? Do you put them on a macro plan? How often do you do your follow up sessions? What do you charge per session? What problems do you find that your clients need the most help with? Do you have pretty good customer retention long term? What softwares do you use to manage client relations? Anything else you might find important that you'd like to share..

Curious to hear some insight from the nutrition coaching community as I'm sure everyone does things a little differently. I'm sure many coaches can benefit from others insights..