Cubie Messenger, the namesake instant messaging app of Cubie Inc., has received another significant update.

When I posted about Cubie rival Line‘s latest update several days ago, I emphasized that Line is to Japan as WhatsApp is to the U.S., Viber is to Cyprus, and KakaoTalk is to South Korea. Now, in relation to Cubie’s new update, I’d like to extend the analogy by saying that Cubie, for its part, is to Taiwan.

But for all its functional similarity with the other popular international messaging apps, Cubie has a distinctive drawing feature. It’s why Cubie has been described as “WhatsApp meets Draw Something.”

But now, following its new update, Cubie may very well be described as “WhatsApp meets Draw Something meets Snapchat.”

If you can’t see the video embedded above, please click here.

Also a popular messaging app, Snapchat is dedicated to real-time “self-destructing” picture chatting. And it’s this stealthy feature that is the clear inspiration behind Facebook Poke and, now, Cubie’s new sexting, I mean, secret messaging feature.

Beginning with the new version of Cubie, you can send secret messages to your friends. When any of your friends receives a secret message, it will disappear (presumably forever) after a set time. Just tap the lock icon in the text box to switch from regular to secret messaging.

But Cubie’s latest update is not all about secret messaging. It also brings the ability to add text bubbles and stickers to your drawings and photos. Also included are sticker management and an improved voice messaging tool that lets you record continuously even while searching your chat messages.

Optimized for iPhone and iPod touch running iOS 4.3 or later, Cubie Messenger is available in the App Store for free.