I've made a proper solution for AddGoals. addgoals.com/goal/go-ziplinin…
So how this works is that you need to implement something that's called "parallel states". This way the modal can be opened from anywhere and can load anything you want behind as well.
When opened from a specific location it will remember what's behind.
Freshbooks, freeish - www.freshbooks.com/
Harvest, also freeish - www.getharvest.com/
There are google sheets templates which will serve the purpose as well. I like them because of the simplicity.
I'm creating an extremely straightforward invoice app (with a time tracker straight on the invoice). Let me know what you picked.
The starter pack for $9/month, right?
Yeah that'll probably do you well. My team is on a higher package.
This should be good www.freeinvoicecreator.com/