GlitchTip collects errors reported by your app and puts them all in one place for you to see. It can use Sentry's open source SDKs to receive error data from your application.
It's also open source, so you can view, modify, and use the code as you see fit. Run it on your server, or let us host it for you. All you need to do is register with your email and password. Then, select the subscription that works best for you.
GlitchTip is the right choice if you value simplicity, affordability, and the freedom provided by open source, especially now that Sentry is no longer an open source option.