TeleGuard is a messenger from Swisscows for mobile devices and Windows, macOS and Linux. Contacts connect through a TeleGuard ID or QR code rather than a phone number. Alongside text chats, it supports voice messages and audio and video calls. The provider describes conversations as end-to-end encrypted.
A password-protected backup lets you restore an account on another device; the provider recommends matching app protocol versions. Optional personalised IDs and calls to regular mobile or landline numbers cost extra, so these extras should be distinguished from the messenger itself.
Sources: Product overview
