Tango Card - Tango Card bundles an awesome catalog of e-gift cards and other e-rewards with easy-to-use technology and expert program support.

Wickr - Wickr is a free end-to-end encrypted text, video, picture and voice messenger with full sender...

Rybbon - Send digital e-gift cards as marketing incentives or rewards with Rybbon, which integrates with Marketo, HubSpot, SurveyMonkey, and Qualtrics.

Burn Note - Burn Note is the name of a continuous private messaging utilizing which you can have an ongoing private discussion with your companions or any individual who is at Burn Note.

Giftbit - Buy, send and track digital gift cards for your reward and incentive programs.

Signal - Fast, simple & secure messaging. Privacy that fits in your pocket.