What is "upptalk"

Upptalk (formerly known as Yuilop) is a proprietary voice-over-IP service and software application that provides mobile phone numbers in the cloud and allows users to call or text any phone for free whether or not the device receiving the calls and texts has the Yuilop application.

Yuilop provided phone numbers can be accessed across any device on the internet (IP) and are reachable via regular phone calls (PSTN) from any landline or mobile phone, and SMS. Calls and chats to other users within the yuilop network service are free of charge. Unlike most other VoIP services, yuilop does not charge for off network communication. Calls and SMS to landline telephones and mobile phones use virtual credits that are earned for free through participating in promotional activities and using the app. Yuilop does not require credit for national calls and SMS in the U.S. Yuilop has additional features, including instant messaging, group chat, and location, and photo sharing. Competitors include Skype, Viber and Google Voice.