Most of the apps I’ve tried have a guest mode, but it only let’s you browse. I was hoping for something that had a guest mode that didn’t require you to log in, but still let you subscribe and make a personalized feed that was saved locally to the device rather than to an account. Looks like Eternity does let you do this! The only other functionality I was hoping for was to save posts and comments locally, but considering how no other app I’ve tried even let’s you subscribe locally, I’m not holding my breath! lol