Zanda, the rebrand of long-running Power Diary, is a practice management system serving psychology and allied health clinics across the US, UK, and Australia. It covers calendar management, SMS/email reminders, clinical notes with a large template library, telehealth, invoicing and payments, client portal booking, and US insurance claiming, and has introduced AI-assisted note tools to speed documentation. Pricing is quoted per practitioner per week with a sliding scale by team size, frequently undercutting US-native competitors for groups, and generous data-import help eases switching. Its psychology heritage shows in mental-health-appropriate templates and outcome measure support. The US billing stack is younger than TherapyNotes-grade systems, which is the main caution for insurance-heavy practices; cash-pay and hybrid practices, especially multi-clinician ones, tend to find it excellent value with responsive support.