Is Scripture Box worth the annual fee?

It’s only $5 annually so maybe i should just risk it, but does anyone use Scripture Box for their SCM-style scripture memorization? I was hoping for an app that didn’t need the Internet, but that’s just a minor hang up. I haven’t done the 30-day free trial, but thought I’d get check here for opinions because I remember it being discussed at one point.

https://www.scripturebox.com