Stay on Cliniko alone if you’re a solo or small allied health clinic, your patients find you via referrals, and the per-practitioner subscription is comfortable.
Custom-only rarely makes sense for medical / allied health — Cliniko’s clinical depth is hard to replicate and usually shouldn’t be.
Custom + Cliniko is the pattern most multi-practitioner clinics end up on. Branded patient-facing booking on your domain, Cliniko handling clinical records, two-way API sync. Best of both. Most cost-effective at 3+ practitioners.