The service doesn't track you. Zero analytics.
Firebase is an excellent tool.
Also some of only have Junior college so typos are gonna be part of the deal.
But I don't advertise my services saying that user's info stays on device, because I know I'm sending their info to a 3rd party, be it their emails, phone numbers, IPs and all that jazz.
When Google gets a leak of user info and all your user's phone numbers get exposed, how are you going to explain to them that their personal information got out through a third party when you promised that "data stays on device" ?
phone number, statements, posters, events and that's it. only the pieces required to share.
I use no analytics. and store everything in static files. It all gets brought together on the phone.
Thanks for the feedback. This is exactly the kind of thing i was hoping to learn.
Maybe it would be nice to explicitly say what is sent out, to where and why. Sentences like that make me trust services more, even if I don't like what's being shared, I just appreciate the honesty.