Send your app directly to your device
Testing in emulators can get you a long way, but most designers would like to
test their apps on an actual device prior to deploying it or sending it along for a final review. MobiOne includes a service called "AppSync" to keep your designs and your device connected.

With a quick click on the envelope icon in the Design Center, you can enter an email address or a text address, delivering your design right to your Android device, iPhone, iPad or other mobile device.
how can i do that without an app store?

Since Mobione utilizes the power of HTML5, CSS and JavaScript, the hybrid apps you're creating are based on Web technologies. Therefore, you can send links around to co-workers or friends letting them see your designs, but without the App Store hassles.
If desired, you can even look at your designs on your desktop using the latest browsers that support HTML5 technologies, such as Chrome or Firefox.