Contact Book vs Nat
Contact Book
monicacrm.comNat
nat.appSide by side
| Figure | Contact Book | Nat |
|---|---|---|
| Price from | €8.33/mo | $8.08/mo |
| Free plan | Yes | — |
| Free trial | — | Yes |
| Open source | — | — |
| Web | Yes | Yes |
| API | Yes | — |
| Plans published | 4 | 2 |
| Spec score · Personal CRM Software | 9.1 (#4) | 7.6 (#21) |
| Audience | The product is built for solo users keeping a personal CRM, including people managing friends, family, networks, parents, freelancers, and volunteers. | Nat says its personal CRM is designed for consultants, company owners, and freelancers who value relationships. |
| Integrations | The integration surface includes GraphQL, WebSockets, outgoing signed webhooks, and client libraries for multiple programming languages. | The pricing FAQ lists Gmail, Google Calendar, and Google Contacts, and says Outlook integrations are not offered. |
| Support | The founders say they answer support emails themselves, and the imprint says monitored contact addresses are usually answered within one working day. | Nat says its founder provides 24/7 email support to Magic plan subscribers. |
Plans
Contact Book
- FreeFree
- FreeFree
- Standard monthly€10 a month
- Standard annual€100 a year
In their own words
Contact Book
Contact Book is a personal CRM for capturing contact details, logging interactions and keeping track of gifts, life events and follow-ups. Profiles can hold emails, phones, companies, addresses, birthdays, social links, food preferences, allergies and how you met someone. A shared screen brings together profiles, a relationship graph, a timeline, life events, gifts, follow-ups and a journal. Users can import and export information, export everything or delete an account through self-service settings. The service is available on the web and offers HTTP API, CLI and MCP access to the same data and access rules. The operator says its application servers and database are hosted in Germany. Public endpoints use TLS 1.3, database disks are encrypted at rest, and backups are encrypted before leaving the primary host. Daily database snapshots are retained for 30 days, stored in another physical location, and restore tests are performed quarterly. The operator says it does not sell user data or share it with advertisers. Contact Book has a free plan; Standard costs €10 per month or €100 per year. Email and calendar sync are not offered.