BlackBook is a private personal CRM for iPhone that helps you remember the people in your life and follow up at the right time. Keep notes and conversations for clients, referral partners, friends and family, and get birthday and follow-up reminders. Pulse turns your notes, history and reminders into a clear next move. Free plan with room for 25 people; optional BlackBook Pro subscription. Private by design: no account required, data stays on your device and your private iCloud, no advertising SDKs, never sold. Requires iOS 17.6 or later.