How BlackBook protects your relationships
- No account. There is no BlackBook sign-up. Nothing to breach, nothing to sell.
- On your device and your iCloud. Contacts and notes stay on your iPhone and sync through your private iCloud container.
- No advertising SDKs. No ad networks inside the app.
- Never sold. Your relationship data is not sold.
- On-device AI. BlackBook AI uses Apple Intelligence on your iPhone (Pro, iOS 26). You review drafts before saving.
- You choose what to share. Only details you pick for your digital card or invitations are shared, for those purposes.
Read the full BlackBook privacy policy.
BlackBook facts
- Platform: iPhone, iOS 17.6 or later
- Price: free download; optional BlackBook Pro subscription (prices shown in the app)
- Free plan: 25 people, 2 notes per person, 30 days of interaction history
- Pro: unlimited people and full history, VIP reminders and insights, relationship notes with tags, duplicate detection, BlackBook AI
- AI: on-device via Apple Intelligence (Pro, iOS 26, compatible iPhone)
- Privacy: data on your device and private iCloud, no account, no ad SDKs, data never sold
- Developer: Preston Earnest / Earnestly Studios LLC
Frequently asked questions
Does BlackBook sell my data?
No. BlackBook includes no advertising SDKs and your relationship data is never sold.
Does BlackBook upload my contacts to a server?
Your contacts and notes stay on your device and sync through your private iCloud container. BlackBook does not require an account.
Is BlackBook AI private?
BlackBook AI runs on your iPhone using Apple Intelligence. It requires BlackBook Pro, iOS 26, and a compatible iPhone.
Keep your promises.
BlackBook is free to download for iPhone (iOS 17.6+). Start with 25 people—no account needed.
Get BlackBook – Personal CRM