1) Alby on desktop
2) Connect Alby to Zeus through LNDHub on mobile (Alby docs can guide them on how to do this)

This would let them have a consistent balance across both.

Primal is excellent yes, but they don't have deep-linking (being able to zap someone on Amethyst with my Primal wallet on mobile) so I won't recommend it. 

 This is a good point. Primal doesn't advertise itself to the operating system as a wallet. 

 I went down this path a number of weeks ago.
Alby no longer supports LNDHub or lightning for US based customers. Primal seems only option? sad as WoS was great. 

 hey, can you send me an alby invite code? i need that to start using alby 😟