Napkin is available on App Store with a fee of $6 per month or $50 per year. You can also get a seven-day trial to test out the app.
The company says that the app doesn’t want to disrupt user flow so they don’t send any nudges or notifications to users. “We don’t want to add more noise to users’ lives. We would love to be an application in the background that is not screaming for attention, but rather a quiet place of retention for them,” Felsmann said.