It's not really the same thing. Sentry is far more general purpose, and doesn't require GCE. If your language or framework lacks support, you can add it. Also h

It's not really the same thing. Sentry is far more general purpose, and doesn't require GCE. If your language or framework lacks support, you can add it. Also has a bunch more functionality. Google's offering is great on App Engine (I've used it a good bit), but that's the sweet spot.