SIMS - Video Call, Text & Voice Chat

With SIMS user can make FREE high quality video calls, voice calls, and send text messages to easily connect to friends and family around the world. Make clear and crisp video calls on a group video call. 

The Client

Hong Kong based Matrix asia pacific limited approached to develop an iOS based text and video chat application to serve as a messaging platform between their employees. The aim for the private messaging app is to secure the messages.

Business Need

The client was looking for a great way to share files, thoughts, and collaborate with people both inside and outside of an organization. 

Veltrod Solution

Veltrod developed SIMS app to send and receive messages, calls, photos, videos, documents, and Voice Messages. SIMS uses smart phone's Internet connection (4G/3G/2G/EDGE or Wi-Fi, as available) to let you message and call friends and family.

Technology footprint

  • XMPP (Extensible Messaging and Presence Protocol)
  • Openfire (Real time collaboration (RTC) server)
  • iOS

Top features

  • Free Video Calls, Voice Calls, and Texts – you and your friends can chat as much as you want. SIMS works with your Wifi network or data plan to make sure all your calls and texts are free.
  • Free Video Calls - up to 12 people in a high-quality video chat over 4G, 3G, LTE and WiFi without increasing data consumption. 
  • Amazing audio during a call – echo cancellation and crystal clear audio to make you always sound great. 
  • Free Voice Calls – talk to friends and family right next door or across the world, as long as you like.
  • Free Texts - send messages, photos and videos to your friends, even during a call.
  • Free Group Chats - enjoy group chats with integrated one-touch calling to easily move from a chat to video call. Change group name and picture.
  • Fewer dropped calls – our video technology automatically detects and adjusts for connection speed, which means less dropped calls on the same connection than other video chat apps.