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Contact Book vs Cloze: which one fits a solo professional?

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

Personal CRM
Solo work
Julia Yukovich
Julia YukovichCo-Founder + CEO
·March 7, 2026·
1 min read

At a glance

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.

Contact Book vs Cloze: feature comparison

When to pick which

Pick Contact Book when

You don't want a tool that reads your email - even if it would surface useful prompts.
Manual entry suits you - typing in what mattered is the moment that helps you remember.
Hosted in Germany matters; you don't want US-headquartered infrastructure for your inbox-adjacent data.

Pick Cloze when

You'd genuinely use the AI suggestions and want a tool that watches your channels.
Sales-style relationship scoring helps you prioritise.
Inbox + calendar + social ingest is the killer feature for you.

Try Contact Book

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

Julia Yukovich

Written by

Julia Yukovich

Co-Founder + CEO

Julia is one of the Co-Founders. She handles design, product direction, and most of the support replies that arrive in the morning.

julia.yukovich at aicuflow dot comLinkedIn