Better Stack is an observability platform whose components cover tracing, log management, infrastructure monitoring, error tracking, incident management, status pages, uptime monitoring and real user monitoring. Its error tracking works with the Sentry SDKs, so existing Sentry instrumentation can keep running. The platform is aimed at development and operations teams and is consumed as SaaS.
The privacy policy names Better Stack, Inc., a Delaware corporation, as the controller, and the terms state that the service is governed by and operated under United States law. The policy says personal data is processed "primarily in the European Union", while transfers outside the EEA are possible on the basis of adequacy decisions or standard contractual clauses. For telemetry, the vendor's changelog says you pick a data region: US East, US West, Germany or Singapore; storing data in your own S3 bucket is also possible. A European organisation would be well advised to select the Germany region, review the data processing agreement and its subprocessor list, and take the US legal entity into account.