The best alternatives to Rollbar are Sentry, Log Owl, and AppSignal. If these 3 options don't work for you, we've listed a few more alternatives below.
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Agree.com— Free e-signature for everyone with invoicing and payments!
Get the insights you need on how your IT services perform in production. Track errors with all the details you need to fix issues and get detailed user analytics, privacy-focused and all in one place.
Receive crash and error reports in real time for any project no matter your development stack, with official support for Android, ReactJS and PHP with many more to come into the future. If there's no official library, there's a simple custom submission API.