Hey!

From our FAQ:

"For all required chain data lookups, for each request we randomly select from a list of public Electrum servers which is currently made up of mempool.space, blockstream and bitaroo. In a future update, we will allow users to input a custom list of Electrum servers they would like Clams to use instead. This would allow for using a locally running instance to prevent any metadata from leaving your device. We also recommend using a VPN while using the app so that the public Electrum servers cannot correlate your personal IP address with transaction metadata."