I want to update roblox without any app stores, is there a way to do that?
Technically, this is not allowed legally, due to the guidelines that both Apple and Android try to follow by:
Apps should be self-contained in their bundles, and may not read or write data outside the designated container area, nor may they download, install, or execute code which introduces or changes features or functionality of the app, including other apps.
I found this quote from Apple’s App Development Guidelines, and Googles has nearly the same guidelines as well.
I don’t believe so - however there are some videos online claiming you can play without updating. I won’t link any here because I don’t quite trust them. I suppose you could download it off of google play and technically wouldn’t have to update it via the App Store, but I don’t know if this would help in your scenario.