For receiving transactions you can Use Bitcoin On Chain network, Lightning Network and LNURL at no cost. You can provide the following to receive an internal transaction:
- Your On Chain address (starts with bc1).
- Creating a Lightning invoice (lnbc1).
- Use the LNURL address which uses an email address form, (eg. usernameBBW@ln.bitcoinbeach.com).
For exclusive use of BBW users you can make internal transactions by username, as this name is not shared with other similar applications such as chivo or strike.