[pixelman32]

I've also experienced some production issues with Realm. I've been using it for an App Store mac app since before 1.0 (Quite risky, yes, but it's for a simple use case). In the worst cases, it caused data corruption for end users.

Over the past year, it's become a lot more stable and I've seen far fewer user reported issues with it. As others have pointed out, it's also a very nice API and very simple to get set up.

The Realm team has also been very helpful in my experience and usually have responded to my support requests almost immediately, despite the fact I'm using their free product and not the DB-as-a-service they recently shipped.

[BoorishBears]

I wouldn't take exception to it's stability if they didn't call it ACID compliant. I was about to use it in a setting where failure to be ACID complaint would be fairly expensive (but not safety critical). In just 24hrs of testing I managed to end up with a corrupt DB. In the same tests SQLite's been running for almost a year without corruption...