You can only send SMS thru the web dashboard. The app is quite barebones to be honest, haha, but still useful for quickly checking if you have signal or see the battery level. I hope they would add more features including changing network settings and sending SMS. That model isn't really a 4G one, just HSPA+ which Globe brands as '4G'. And, HSPA+ is 3G. It's P1,995 nalang on Globe, and I suppose you can unlock that for free as well.