If the app is just a WebView wrapper around the application, then the challenge page would load and try to be evaluated.

If it’s a native Android/iOS app, then it probably wouldn’t work because the app would try to make HTTP API calls and get back something unexpected.

https://forum.syncthing.net/t/discontinuing-syncthing-android/23002

According to this post, it was partly that and lack of maintainers. Given there’s maintainers for a fork, I’m curious why they didn’t bring them into the main project.

Reason is a combination of Google making Play publishing something between hard and impossible and no active maintenance. The app saw no significant development for a long time and without Play releases I do no longer see enough benefit and/or have enough motivation to keep up the ongoing maintenance an app requires even without doing much, if any, changes.

We’re sort of in this situation because the official project decided not to continue providing an official Android app, yet people want to use it on Android forcing unofficial versions to be created and maintained.

I get that they don’t want to deal with Google Play anymore, but somebody has to deal with it and them not owning the app is putting users at risk.

With Plex, you’re getting the easy ability to grant access to users. You get a single pane that can search across multiple Plex instances, and NAT traversal/port forwarding. Jellyfin makes you figure that out yourself.