ContextSync is a service layer that seamlessly synchronizes user context and history events across your entire application ecosystem. One unified experience, everywhere.
Everything you need to keep your users' context perfectly synchronized across every touchpoint.
Sub-millisecond synchronization ensures your users experience zero lag when switching between applications.
Military-grade encryption protects all context data in transit and at rest. Your users' privacy is guaranteed.
Complete audit trail of all context changes with time-travel capabilities. Debug issues effortlessly.
Integrate in minutes with our lightweight SDKs for JavaScript, Python, Go, and more. Just 3 lines of code.
Gain deep insights into user behavior patterns across your application ecosystem with real-time analytics.
Deploy to 200+ edge locations worldwide. Context syncs from wherever your users are, instantly.
A simple three-step process to unify your user experience across all applications.
Install our SDK and configure your applications in minutes. No infrastructure changes required.
import { ContextSync } from '@contextsync/sdk';
const sync = new ContextSync('api-key');
Specify what context data to sync: user preferences, session state, activity history, and more.
sync.defineContext({
user: { theme, lang },
session: { page, cart }
});
Context changes propagate instantly across all connected apps. Users enjoy a seamless experience.
// Syncs to all apps
sync.update({ theme: 'dark' });
From startups to enterprises, ContextSync powers seamless experiences across industries.
Sync shopping carts, wishlists, and browsing history across web, mobile, and in-store kiosks.
Maintain user workspace state, preferences, and draft content across browser tabs and clients.
Sync read receipts, notifications, and conversation context across all devices seamlessly.
Keep filter states, date ranges, and custom views synchronized across team members.
Start free, scale as you grow. No hidden fees.
Forever free
per month
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Comprehensive guides, API references, and examples to get you up and running in minutes.
import { ContextSync } from '@contextsync/sdk';
// Initialize the client
const sync = new ContextSync({
apiKey: process.env.CONTEXTSYNC_KEY,
appId: 'my-web-app'
});
// Subscribe to context changes
sync.subscribe('user.preferences', (data) => {
console.log('Updated:', data);
applyTheme(data.theme);
});
// Update context (syncs to all)
await sync.update({
'user.preferences.theme': 'dark'
});Join thousands of developers building seamless cross-application experiences. Start your free trial today.
No credit card required. Start syncing in under 5 minutes.