Leaving aside the background technical infrastrutture, that I don't want to comment here, I appreciate the clean UI. Some suggestions:
  • Add an optional procedure to verify the seed, display a prominent alert on the main view until the backup is verified;
  • Manage the back button/gesture to go back from a section, otherwise you exit the web page;
  • Add a real-time sats-fiat converter and let users input in fiat;
  • Remove the bottom credits, the about section is enough ;)
Thanks for your suggestions.
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