To send a Doodle on Viber, you can either tap the ‘Send Doodle’ button, and draw what you want, or you can use a photo, and then doodle on top of it. By default, any Doodles you send or receive are saved to your Camera Roll, but you can choose not to do this.
As well as Doodles, this latest update includes the following:
• “Seen” status lets you know when your messages have been seen
• Support for the Viber Desktop application on Windows and Mac
• Fun new emoticons
• Message performance improvements
• Bug fixes