KLARA is cloud-based business software for Swiss small and medium-sized enterprises, aimed at invoicing and accounting. It is offered on klara.ch and operated by ePost Service AG, which presents KLARA as part of its own offering. The vendor's public pages do not describe a self-hosted or open-source version of the software.
ePost Service AG is based in Lucerne, Switzerland, and is a subsidiary of Swiss Post. The vendor states that customer data is stored exclusively in Swiss data centres and replicated across several sites in Switzerland, and that Swiss data protection law applies. The vendor's public pages do not mention the GDPR or a data processing agreement. For a European organisation, this means the data stays in Switzerland, outside the EU, so the contractual terms should be checked against its own requirements.