QuietDesk — PREVIEW TESTING GUIDE Candidate: 0.12.5 build 43. Not a certified installer. No public app download or TestFlight invitation is currently available. Availability: https://quietdesk.me/preview Requirements: Apple Silicon Mac, macOS 15 or later. After an approved release is available: 1. Install only through the verified TestFlight invitation or signed, notarised installer. Do not disable macOS security protections. 2. Use synthetic data, never a real clinic database. 3. Sign in as a professional. Confirm that only permitted clients, services and appointments appear. 4. Review a fictional client message; prepare and review a reply. Copying is not sending, and sending is not acceptance. 5. Confirm a booking after explicit client acceptance and an availability check. Reschedule it and check that it is not counted twice. 6. Review personal financial results; keep currencies separate. The app does not collect clinic payments. 7. Repeat navigation in the permitted interface language. Report incomplete labels and keyboard or VoiceOver barriers. 8. Test backup and restoration only with synthetic data. 9. Share only limited optional diagnostics and fictional reproduction steps. Never send names, contacts, conversations, passwords or backups. Live: 19 September 2026, 19:00 Brasília (22:00 UTC). Planned launch: 26 September 2026, subject to audits, tests and Apple approval.