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I've been using Sentry for most of my projects. Sentry works great on the backend, but I've never really liked how it worked on the frontend and mobile. Now I'm looking for alternatives.
I'm using Sentry on both front and backend. It's not great though - the volume of error reports makes it really hard to differentiate useful reports from low priority reports.
I'm curious what's not working for you about Sentry?
My experience is that half of the errors are very generic and it is almost impossible to reproduce based on the info in Sentry
I use Bugsink instead -- then again, I wrote Bugsink :-)