Savvy

Savvy

Savvy is an innovative voice-over-IP calling app using WebRTC. It was built with Xamarin Platform in C#, which allowed us to share about 80% of source code between the iOS and Android version.

In addition to the English version, Savvy was also localized in Spanish, Chinese, Korean, and Vietnamese.

The backend of Savvy featured API for user registration, billing, rate lookup, call routing, push notification, in-app purchase, as well as purchase with credit card. The communication layer was constructed with Prosody XMPP server, FreeSWITCH, and OpenSIPS.


Savvy on iTunes
Savvy app on iTunes

Savvy on Google Play
Savvy app on Google Play

Savvy onboarding assistant, Spanish version
Savvy onboarding assistant, Spanish version

Calling rates by country, in the Spanish localized version
Calling rates by country, from the Spanish version

Contact detail, from the Chinese version
Contact detail, from the Chinese version

Savvy Caller ID
Savvy allows users to use their numbers as the Caller ID, or use random phone numbers

Savvy account management
Savvy user account management