KChat is a messaging service from Uney GmbH for private messaging, internet calling and communities, available as an app for Android and as a desktop app for macOS and Windows, with support for multiple devices. According to the provider, communication is end-to-end encrypted and the service does not store chat content on its servers. The Rust SDK that implements its encryption, based on the MLS protocol, is published as open source under Apache-2.0 or MIT. For organisations there is KChat Work, where the customer acts as data controller and signs a data processing agreement with Uney.
Uney GmbH is based in Zug, Switzerland. According to its privacy policy, personal data is primarily processed on servers in Switzerland, a country the European Commission has recognised as providing adequate data protection. The apps are offered under licence from Smart Artificial Intelligence L.L.C., a company in the United Arab Emirates, and the macOS app is operated by Nano Aspect Artificial Intelligence L.L.C. A European organisation considering KChat should include this licensing chain in its assessment.