I've been using it everyday on mobile and desktop. It may not work on old browsers. Strange behavior working only in incognito mode. It isn't made to be used in incognito mode though cause such mode wipes local caches on every reload.
There's a long description here
https://github.com/44Billion/.github/blob/main/profile/REβ¦
Summary: On the outside it is similar to spring browser. But 44b has some important differences such as it caches the apps (aka "installation") so the app dev can't force an app update on user installed apps. It also has a novel approach to signer concept that is the easiest option for non tech savy users, yet totally secure. The platform doesn't store the apps, the user write/outbox relays do, there is no server-side dependency. There's an app store to help with discovery. Apps pust be fully client-side (static websites) like Shakespeare's apps are; perfect fit.
I can answer any question and help you with whatever you need if you're interested in making it a deploy target. No hard feelings if not. DM inbox is open. I've been using Jumble, if that helps for DMs to work on both sides.
Note: there are minor bugs. It's in beta, and there's much work to do, thus why I tried the grant. But as I said, I've been using it everyday myself, like now to reply here.