GlitchTip Top pick
glitchtip.com$15 for 100k events vs $26 for 50k
GlitchTip hosted is $15 a month for 100,000 events (free to self-host) and works with Sentry's SDKs. Sentry Team is $26 a month for 50,000 errors.
You keep: Error tracking using your existing Sentry SDK; open source.
You give up: No session replay or profiling; smaller feature set.