alt Hacker NewsI would say:
We both offer a real-time queries out of the box. I am not 100% sure, I but think Convex also set up a multi-tenant database; so they can offer a good number of free projects well.
The way I would differentiate Instant:
With Convex you write your queries as Javascript functions. This means you have to do joins for example imperatively. With Instant, you can write queries declaratively.
As of today Convex doesn't work offline, and you have to write optimistic updates manually. Instant can run offline and comes with optimistic updates out of the box.
Both Convex and Instant support files out of the box. But with Instant you can write CASCADE delete rules, and you also get other services, like presence and streams.
Congratulations on your launch! 4 years of work is certainly remarkable perseverance.
The sync engine feature looks very interesting to me. There have been quite a few products available on the market today, but none has achieved a dominant share yet. So if this is your main strength, I'd like to see more demos built local first.
Curious if you considered shipping the engine itself as a standalone infra piece.