Contact Book
7.3#5 in personal crm softwareFrom €100 a yearFree planWebAPI
VisitContact Book vs Contacts+ Personal CRM
Contacts+ Personal CRM
7.8#1 in personal crm softwareFrom $9.99 a monthFree planAndroidiOSWebAPI
VisitWhat both publish
| Fact | Contact Book | Contacts+ Personal CRM |
|---|---|---|
| Integrations | The integration surface includes GraphQL, WebSockets, outgoing signed webhooks, and client libraries for multiple programming languages. | Official integrations include Google Contacts, iCloud, Microsoft/Outlook, Zapier, LinkedIn, ChatGPT, Claude, Grok and an MCP connection. |
| Licence | The terms reserve the software and design as the operator's intellectual property and prohibit copying, resale or redistribution, indicating a proprietary service rather than open-source software. | Contacts Plus LLC states that it owns intellectual-property rights in the site, apps, integrations, APIs and content, indicating proprietary software. |
| Maker headquarters | The operator address is Lange Straße 14, 72461 Tailfingen, Germany. | The stated office address is 3636 S. Geyer Road, Suite 100, Saint Louis, Missouri 63127, United States. |
Contact Book plans
- FreeFree
- Standard monthly€10 a month
- Standard annual€100 a year
Contacts+ Personal CRM plans
- FreeFree
- Premium$9.99 a month
- Teams$12.99 a month
Pick Contact Book if…
It suits solo users who want to keep a personal CRM for friends, family, parents, professional networks, freelance contacts or volunteer relationships. It may also fit users who want follow-up reminders and data export.
Pick Contacts+ Personal CRM if…
Contacts+ Personal CRM suits solo professionals and people who want contact context and reminders in one address book. Teams and small businesses can use its shared address book plan.