Primal on Browser: Lacks some useful features like bookmarks and collections.
Amethyst on Android: Annoying as fuck to log in due to the nsec being too large.
Discussion
Amethyst nsec is larger? You mean ncryptsec?
No, not that. It's just the general nsec is quite large to copy over without using some kind of manager. Although, trying #Amethyst again after this complaint, I managed to log in using the Nosta.me QR code instead of copying over the nsec.