Reliably syncing database and frontend state: A realtime competitor analysis

Easily power any realtime experience in your application. No complex infrastructure to manage or provision. Just a simple API that handles everything realtime, and lets you focus on your code.

Easily power any realtime experience in your application. No complex infrastructure to manage or provision. Just a simple API that handles everything realtime, and lets you focus on your code.

Ably’s LiveSync product is now available as a public alpha release. LiveSync allows you to automatically keep data in sync across servers and clients, in realtime.

This is a hard distributed systems problem. In this post, we’re going to have a look at four existing solutions to realtime data synchronization, the different technical designs, and the tradeoffs they make. Then, at the end of the post I’ll describe the set of design choices we’ve taken at Ably for our LiveSync product.

Supabase has a feature called Postgres Changes, which is part of their realtime product offering. It allows you to listen to changes that happen in a single table, and send those changes to clients that are allowed to receive them.

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