Hey @[email protected] - I'm sure you're swamped with the actual work of building the app, but have you considered building awareness for the app through a Pre-Registration release on Google Play?
Seems like it could be a great way to help people who are interested in a top-notch Lemmy client find Sync... and perhaps also help people who want to know when Sync for Lemmy releases, but don't want to share their emails on SyncApps.io