Precious "We're a period and ovulation tracking service company"
It's important to differentiate between a service and software product.
Just like you would say, I love to cook, therefore I'm a chef. In this case, "We own a period tracking app, therefore we're a Software as a Service company."
An agency would say "We offer design services to clients in New York"
Correction:
"We're a period and ovulation tracking software company"