From their top up website:

Pricing

21 sat per message

Each satellite message costs 21 sat. Credits are deducted when transmitted.

Network Stats

Total Users

12

Messages Sent

143

What is BitSatRelay?

BitSatRelay enables uncensorable communications for everyone, everywhere. Whether you're living off-grid, facing emergencies, during natural disasters, or in areas with civil unrest - your freedom to communicate cannot be silenced.

Using amateur radio satellite communications combined with Bitcoin's Lightning Network and Nostr protocol, messages are transmitted through space beyond the reach of any government or corporation. True freedom of speech. Uncensorable. Unstoppable.