---
title: Data Sync
description: Introducing Couchbase Lite's Peer-to-Peer Synchronization feature
pubDate: 2026-08-17T09:53:44.266Z
antora:
  editUrl: https://github.com/couchbase/docs-couchbase-lite/edit/release/3.0/modules/objc/pages/landing-replications.adoc
  xref: xref:3.0@couchbase-lite:objc:landing-replications.adoc[]
---

[Consult the llms.txt file for a full list of contents](/llms.txt)
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# Data Sync

# [](#data-sync)Data Sync

###### [](#)

Couchbase Lite for Objective-C provides functionality that supports the flexible and secure replication and synchronization of data whether locally, centrally or at the edge.

###### [](#-2)

![docs listener diagram](../_images/docs-listener-diagram.png) 

## [](#-3)

### [](#locally)Locally

You can replicate local databases _on-device_ — see: [Intra-Device](dbreplica.md)

### [](#centrally)Centrally

You can sync with a centralized Couchbase Server database using Sync Gateway — see: [Remote Sync Gateway](replication.md)

### [](#at-the-edge)At the edge

You can sync directly with other edge devices, peer-to-peer, using a listener to interact with the Couchbase Lite replicator — see: [Peer-to-Peer Sync](#objc:landing-p2psync.adoc)