After using Sunday Lawn Care for a year, I can offer some pretty good information on its benefits and drawbacks. At the time I started Sunday Lawn Care program, my grass was struggling a little bit. Without really knowing anything about lawn care, I decided to give it a try.
There were no detectable bare patches or dead areas. This organic lawn care plan service is delivered right to your doorstep 3-4 times per year and very easy to apply. I show the application as well. If you're really not into lawn care, but want a green lawn with minimal effort, one of several Sunday Lawn Care programs might be for you. However, if you're serious about your lawn, in my opinion, it's best to learn about your lawn, its needs and wants, watering schedule, research products, then apply as your lawn needs it.
Liquid - https://www.lawndork.com/lawn-calculators/liquid-fertilizer-calculator
Granular - https://turf.purdue.edu/fertilizer-calculator/