Hey there! Sentry is only used to detect errors automatically if they occur on your device. It is an opt-in feature, and you can disable it or enable it at any time. This information is useful for me to determine if there are any large scale issues that come up due to a recent release and allows me to quickly take actions which might otherwise take longer to detect.
I opted to include this as this is still a very early alpha release, and having this allows me to bring better and less error-prone releases to everyone! Eventually, as this app progresses from alpha to a more stable version, I will most likely remove it as it'll be less useful for me overall