I suggest you do not update Gear Manager as this will make Watch Styler unusable!! The update was only to make Gear Manager compatible with Gear S.
Watch Styler is compatible with Gear2! Well kinda, only the analog themes works. Digital and Analog/ Digital do not work! Multi-Watch is only for Gear 2, its not in Samsung Appstore for Gear1 yet. However Analog and Digital faces do work now! If you like a Watch face and there is a donate button, please show its designer some love...