The most obvious being the top 3

Satsman teaches Bitcoin fundamentals while you earn real sats on Lightning. Perfect for stacking while you're here on Nostr. Takes 1 min/day. Already at 25 sats. Start today

Satsman

Satsman — Free Bitcoin Education App

Complete 3 short daily missions, learn how Bitcoin works, and earn real satoshi rewards. Free to join. Registered in Cyprus.

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