Contrack vs Nextcloud Contacts

Contrack vs Nextcloud Contacts

Compared in October 2026: Contrack 2.0.0 and Nextcloud Contacts 8.9.1.

Nextcloud Contacts is the standard address book app for Nextcloud. It stores vCard records and syncs phone numbers, emails and addresses across devices over CardDAV.

Contrack goes beyond a static address book to work as a relationship manager: it pairs your contact list with chronological interaction timelines, stay-in-touch cadences, automatic email and calendar sync, local semantic search across notes, a world map, web enrichment and a built-in MCP server, all inside a single Node.js container and a single SQLite file.

At a glance

Area	Contrack 2.0.0	Nextcloud Contacts 8.9.1
Primary job	Proactive personal and professional relationship manager (CRM)	CardDAV address book inside a Nextcloud server
Stack and deployment	1 Node container and 1 SQLite file (curator.db)	Requires a full Nextcloud server (PHP, MariaDB/PostgreSQL, Redis, web)
Backup	One SQLite snapshot (VACUUM INTO), automatic daily backups, or one click in Settings → Backups	Nextcloud database dump + data directory snapshot, or .vcf export
Personal context	Rich timelines, birthdays, anniversaries, custom dates, gift ideas in notes, tags, lists, @mentions	Static vCard fields (phone, email, address, birthday, single Note box)
Professional context	Role, company, experience, education, cadence, relationship score, web research and pre-meeting briefs	Basic vCard title and organization fields
Interaction history	Chronological timeline of notes, calls, meetings, emails and attachments per person	None (only a single plain-text NOTE field per contact)
Getting data in	Google Contacts, Gmail, Google Calendar, IMAP, ICS, vCard/CSV/JSON import, and Add from text	CardDAV sync and vCard (.vcf) import
Keeping up	Opt-in tracking per person, custom cadence, Pulse morning page, overdue and upcoming milestones	Optional birthday calendar events; no stay-in-touch cadences or scores
Search	Local hybrid search (FTS5 + sqlite-vec embeddings + local cross-encoder reranker) and Notes mode	Substring search on contact name and vCard fields
Map	Built-in MapLibre world map with clustering, box/lasso selection, saved views and custom pin placement	None in Contacts app
AI and web enrichment	Optional provider-backed or SearXNG web research with cited sources, plus Ask Contrack	None
MCP server	Built in at /api/mcp (18 tools, personal tokens and OAuth 2.1)	None

A living relationship timeline vs a static vCard form

An address book answers "What is Alex's phone number?" A relationship manager answers "When did I last talk to Alex, what did we discuss, and who am I losing touch with?"

• Nextcloud Contacts models each person as a vCard with fields for phone, email, physical address and a single static NOTE box. There is no timeline of past conversations, no way to log a call or coffee with a follow-up date, and no cadence tracking.
• Contrack gives every person a full dossier and chronological timeline (see Contacts):
  • Log rich Markdown notes, calls, meetings and emails with file attachments, @mentions that cross-link connected people, and a Next follow-up date.
  • Turn on Track for the friends, family members and professional contacts you want to stay close to. Pulse computes a relationship health score from 0 to 100 and shows who is overdue alongside upcoming birthdays, anniversaries and custom milestones.
  • Use Add from text (Smart Paste) to paste a quick note, such as "Met at Sarah's wedding, loves natural wine, kids are Leo and Maya, catch up every quarter" or "Partner at Sequoia, follow up next Tuesday on seed round", and let Contrack extract the contact's fields, tags, custom facts and dated interactions automatically.

Automatic email and calendar context

• Nextcloud Contacts does not automatically attach your email threads or calendar meetings to a contact's history.
• Contrack includes background connectors for Gmail, Google Calendar, Google Contacts, any standard IMAP mailbox (including mail hosted alongside Nextcloud) and any ICS calendar feed (including a Nextcloud Calendar ICS URL). Emails and meetings automatically appear on the matching contact's timeline and update their last-contacted date (see Import, sync and export).

Local hybrid search, world map, web enrichment and MCP

• Search by meaning, not just exact spelling. Contrack indexes every contact, note, interaction and custom fact in SQLite FTS5 and embeds them locally on CPU using bge-small-en-v1.5 (sqlite-vec) with ms-marco-MiniLM-L-6-v2 cross-encoder reranking. Search "fintech", "wine" or "Who did I meet at the conference?" across both people and Notes mode with no external API key (see Search and Ask Contrack).
• Interactive world map. View your network on a MapLibre Map, select a city with a rectangle or lasso tool to build a trip list, or fine-tune any pin.
• Web enrichment with citations. Fill in a contact's work history, education, bio and links using web research that cites every source URL and can be reverted in one click with Not this person (see AI and research).
• MCP server. Connect Claude Desktop, ChatGPT or Cursor to /api/mcp to search your CRM or log notes from your AI assistant (see MCP server).

Standalone single-file SQLite deployment

Even if you do not run Nextcloud, Contrack deploys in seconds as a single Node.js container backed by one SQLite file (curator.db). And if you already run Nextcloud, Contrack runs happily alongside it on a tiny memory footprint with zero database server contention (see Self-hosting).

When Nextcloud Contacts might still fit better

• You only want a CardDAV server to sync names and phone numbers with the built-in Contacts and Phone dialer apps on iOS or Android.
• You already run Nextcloud and do not need interaction timelines, stay-in-touch cadences, semantic search or a network map.

Using Nextcloud with Contrack (or moving over)

Many self-hosters use both or migrate in three steps:

1. In Nextcloud Contacts, click Contacts settings (bottom left), click the ⋯ menu next to your address book, and select Download to export a .vcf (vCard) file.
2. In Contrack, open Settings → Import (or press ⌘K and type Import), drop the .vcf file onto the page, and let the duplicate check merge any overlapping contacts.
3. Optional: copy your Nextcloud Calendar's private ICS link and your mail server's IMAP credentials into Settings → Connectors in Contrack so meetings and emails flow onto your contact timelines automatically.