I just want to say thank you for Voyager. This has become my go-to Lemmy app on Android for several months now and I'm loving the new features and fixes we're seeing with each release. Your dedication and hard work has not gone unnoticed!
I rate Voyager as being in a different class altogether, since it is free and open source. I will always choose FOSS over proprietary software, particularly for network-aware apps, whenever a viable solution exists.
I haven't tried Boost for Lemmy yet, but I didn't care for it on Reddit (my wife loved it though and used a lot of its moderator features). I used Relay for several years myself, and then Infinity for Reddit until I left the platform.
Boost comes with a lift y of bells and whistles, but in all honesty, voyager is pretty good out of the box. Not to mention the dev is honestly the most active I have ever seen.
I switched from Boost to Voyager. I even liked Boost enough to buy the ad free version, but I'd often find bugs and issues that never got fixed. I haven't run into any problems with Voyager.