Next-Generation Shared Contacts SaaS + PWA

One Shared Directory. Native Phone Sync. Zero Compromises.

Synchronize company contacts two-way into native iOS & Android phone dialers. Segmented with granular tag permissions, approval workflows, and strict multi-tenant isolation.

Native iOS & Android CardDAV
Tag-Level Add/Edit/Delete Grants
Admin Change Approvals
Device-Level Tag Filters
ContactsNX — Acme Corp Directory
CardDAV Sync Active
Enterprise DirectoryShowing 50 of 1,280 contacts
+ New Contact
AP
Aarav Patel
Tata Motors • VP Engineering
Enterprise ClientsiPhone • Two-Way
DAS
Dr. Ananya Sen
Apex Healthcare • Director
VIP PartnersAndroid • Read-Only
VM
Vikram Malhotra
Malhotra Logistics • Head of Ops
Field SuppliersTag Filter Active
PostgreSQL RLS Active • Non-Owner Isolation Verified
Universal Approval Queue: 2 Pending Decisions

Engineered for Modern Teams

Everything your team needs to manage, segment, and sync contacts.

No proprietary dialer apps or vendor lock-in. Real two-way synchronization directly into native iOS & Android operating systems.

Native Phone Two-Way Sync

Syncs seamlessly over CardDAV to Apple iOS Contacts and Android (DAVx5). Callers are instantly identified by name in your native phone dialer and WhatsApp.

CardDAV RFC Compliant

Tag-Segmented Permissions

Control exactly who can View, Add, Edit, Delete, or Share contacts on a per-tag basis. Bulk permission matrix controls allow instant policy updates across the whole team.

Bulk Matrix Toggles

Universal Approval Flow

Prevent rogue changes and accidental deletions. All contact creates, edits, and deletions made by members enter an approval queue for Tenant Admin review with side-by-side visual diffs.

Side-by-Side Visual Diff

Device Fleet & Tag Filtering

Restrict what physical devices sync. A field agent can have their phone restricted strictly to "Field Clients" so sensitive VIP phone numbers never download to mobile hardware.

Per-Device Tag Filtering

DPDP & Enterprise Security

Enforced by PostgreSQL Row-Level Security (RLS) under non-owner database connections. Built-in DPDP consent basis logging, granular audit trails, and trash retention.

DPDP Ready & Immutable Audit

Smart Merging & Offline PWA

Import CSVs and vCards with automated header mapping and duplicate detection. Works offline via a resilient Service Worker PWA with conflict resolution.

Field-Level Conflict Resolution
Zero Trust Multi-Tenancy

Role Boundaries: Platform vs Tenant vs Member

ContactsNX strictly separates roles at the database layer. Platform Admins manage system infrastructure and tenants only — with zero access to tenant contacts. Tenant Admins govern their company directory and approvals, while Members only touch contacts granted via fine-grained tag permissions.

Transparent Pricing

Plans built to scale with your team.

Every plan includes native CardDAV two-way sync, tag-based access control, and full PWA offline support.

Free Starter

For small teams and testing sync.

₹0 / month
  • Up to 1,000 Contacts
  • Up to 3 Team Seats
  • Up to 5 Sync Devices
  • Two-Way CardDAV Sync
  • Basic Tag Permissions
Get Started
Most Popular

Pro Business

For growing teams requiring approvals & tag filtering.

₹999 / month
  • Up to 25,000 Contacts
  • Up to 25 Team Seats
  • Up to 50 Sync Devices
  • Universal Member Approvals
  • Per-Device Tag Filtering
  • Audit Logs & Duplicate Merge
Start Pro Plan

Enterprise

For organizations needing high scale and priority support.

₹2,999 / month
  • Unlimited Contacts
  • Unlimited Team Seats
  • Unlimited Sync Devices
  • Dedicated CardDAV Service
  • DPDP Compliance Reporting
  • Priority 24/7 Support
Contact Sales