Description: aTalk is an open source, cross-platform alternative to Skype focused on accessibility. It has text-to-speech and speech-to-text features to aid communication for people with disabilities.
Type: software
Pricing: Open Source
Description: Telegram is a cloud-based instant messaging and voice over IP service. It offers end-to-end encrypted video calling, file sharing, and several other features. Telegram clients exist for both mobile and desktop systems.
Type: software
Pricing: Free