Tried few things and never bothered to backup keys. This plebstr app is the first android app that feels good enough to invest in!
Discussion
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don't invest too much on this identity if you don't know what's being done with your key behind the scenes š¤·āāļø
Amethyst is great and nostr:npub1gcxzte5zlkncx26j68ez60fzkvtkm9e0vrwdcvsjakxf9mu9qewqlfnj5z is a machine š
Iām afraid not unless going Amish. 
The whole point of Pkarr is to only be anxious about the security of one key that is rarely used.
Also, while not part of the spec, I never store the keys anywhere, rather generate it in memory by hashing a passphrase which is secure enough and easily memorable. (Rhe CLI implemented this, and the web demo will have it soon).
So I guess if anyone cares, they can check my key and find out my current npub
https://pkarr.nuh.dev/?pk=o4dksfbqk85ogzdb5osziw6befigbuxmuxkuxq8434q89uj56uyy