Contact Book vs Kinu
Contact Book
monicacrm.comKinu
kinu.careSide by side
| Figure | Contact Book | Kinu |
|---|---|---|
| Price from | €8.33/mo | $5.83/mo |
| Free plan | Yes | Yes |
| Free trial | — | Yes |
| Open source | — | — |
| Web | Yes | Yes |
| iOS | — | Yes |
| Android | — | Yes |
| API | Yes | — |
| Plans published | 4 | 4 |
| Spec score · Personal CRM Software | 9.1 (#4) | 8.2 (#10) |
| Encryption | Public endpoints use TLS 1.3, database disks are encrypted at rest, and backups are encrypted before leaving the primary host. | When backup or sync is enabled, data is encrypted on the device before it leaves and remains encrypted in transit and at rest. |
| Headquarters | Germany | Velenje, Slovenia |
| Integrations | The integration surface includes GraphQL, WebSockets, outgoing signed webhooks, and client libraries for multiple programming languages. | Apple and Google are listed for account sign-in; the maker pages opened do not state integrations with other productivity or contact-management products. |
| Privacy | The operator says it does not sell user data, share it with advertisers, or run third-party analytics or session recording on logged-in pages. | Relationship data is stored locally by default, and users can optionally enable free encrypted backup or paid encrypted sync. |
| Reminders | Follow-up tasks are attached to contacts with a due date, message and completion state. | Kinu gives gentle reminders when dates come around or it has been a while since you reached out. |
| Support | The founders say they answer support emails themselves, and the imprint says monitored contact addresses are usually answered within one working day. | Kinu says its support team typically responds within 24 hours. |
Plans
Contact Book
- FreeFree
- FreeFree
- Standard monthly€10 a month
- Standard annual€100 a year
Kinu
- FreeFree
- Kinu Plus (monthly)$6.99 a month
- Kinu Plus (yearly)$69.99 a year
- Founding Member Lifetime$149.99, paid once
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.
Kinu
Kinu is a private personal CRM for remembering details and important dates about friends and family. It can remind users when a date arrives or when they have not been in touch for a while. For each person, users can keep moments, private and voice notes, dates, and rituals. It is designed for personal relationships rather than sales contacts or a larger social network, and has no feeds, followers, likes, or public profiles.
After sign-in, Kinu works offline and saves changes to the device first. Relationship data is local by default; users can enable free encrypted backup or paid encrypted sync. When either is enabled, data is encrypted on the device before it leaves and remains encrypted in transit and at rest. Voice notes stay on the device on every plan, and data can be exported at any time. Kinu is available on Android, iOS, and web. The free plan supports up to 10 people; Kinu Plus adds unlimited people and encrypted sync for $6.99 per month or $69.99 per year.