Custom Sync Code vs Realm Sync

Developers should learn custom sync code when building applications that need to operate offline and sync data when connectivity is restored, such as note-taking apps or field service tools meets developers should use realm sync when building applications that require real-time data updates across multiple devices, such as collaborative editing tools, chat apps, or iot dashboards. Here's our take.

Custom Sync Code

Nice Pick

Developers should learn custom sync code when building applications that need to operate offline and sync data when connectivity is restored, such as note-taking apps or field service tools

Pros

• It's also essential for real-time collaborative features like shared documents or multiplayer games, where immediate data consistency is critical
• Related to: real-time-data-sync, conflict-resolution

Cons

• Specific tradeoffs depend on your use case

Realm Sync

Developers should use Realm Sync when building applications that require real-time data updates across multiple devices, such as collaborative editing tools, chat apps, or IoT dashboards

Pros

• It is particularly valuable for mobile-first or offline-first applications where users need to work without a constant internet connection, as it provides automatic conflict resolution and efficient data synchronization upon reconnection
• Related to: realm-database, mongodb-realm

Cons

• Specific tradeoffs depend on your use case

The Verdict

These tools serve different purposes. Custom Sync Code is a concept while Realm Sync is a platform. We picked Custom Sync Code based on overall popularity, but your choice depends on what you're building.

The Bottom Line

Custom Sync Code wins

Based on overall popularity. Custom Sync Code is more widely used, but Realm Sync excels in its own space.