What would be the best accounting software for a massage therapy business?
If you're open to a more inclusive solution, there's an ERP called TheraOffice that is specialized for physical therapists, which might be up your alley. The Professional Edition offers a billing module to help you manage your accounts.
If you're open to a more inclusive solution, TheraOffice Pro is an ERP for physical therapy offices that might be a good fit for you. It has a billing module that can help you manage your accounts.