The subscriber count was always off by 1 for me, but now that the 9.99 and 24.99 tiers are available, total subscribers should be separate from subscriber points in separate streamlabs text files. The main goal for twitch streamers right now is subscriber points, due to that being the case under which you open more features for your account. An auto-updating option for the launcher would be nice, too.
The subscriber count being off is an issue with the Twitch API.
Currently awaiting Twitch to add data for the subscriber points as we currently cannot pull it from them.