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Cloze is a comprehensive AI-driven relationship platform. We're a focused personal CRM. Here's where each one is the right call.

Cloze ingests your email + calendar + social and uses AI to surface contacts you should reach out to. Contact Book is the opposite - it expects you to log meaningful interactions deliberately, and trades AI surfacing for a calmer, more private system. If you want a relationship intelligence engine that watches your inbox, Cloze is the obvious pick. If you want a personal CRM that does not read your email, that's exactly what we are (see how private your contact data really is).

Free plan, no credit card. We host in Germany. You can export and delete everything self-serve.

Written by
Co-Founder + CEO
Julia is one of the Co-Founders. She handles design, development, product direction, and most of the support replies that arrive in the morning.
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| Ours Contact Book | Theirs Cloze | |
|---|---|---|
Reads your email | ||
Reads your calendar | ||
Manual logging | ||
AI relationship scoring | ||
Conversation log | ||
Stay-in-touch cadence | ||
Hosted in Germany / EU | ||
Free tier | ||
Price | From €1/mo (free tier too) | $19.99-$29.99/mo |