I was under the impression that Bitpie and Bither were released by the same developers?
Thats true.
From their FAQ:
Quote
Bither and Bitpie both belong to the same technical team, however Bither is the team’s early products and Bitpie is subsequently operated product. The main similarity between the two products: they all provide HD wallet management program;
@OP
AFAIK they are using the BIP39 scheme. So the words should at least be recognized by bither's app.
Do what HCP suggested and check whether all of your words are inside the BIP39 word list. It may be a typo. If one word is not in the list -> look for similar words which you might have written down wrong.
Unfortunately i can't say anything regarding the derivation path. Couldn't find anything related inside their documentation too.
