I want to install an APK from PC to Android device. And because of user\'s Android and generally technical skills, I need to do it as automatically (silently) as possible. So ho
Airdroid , android market install the app on android then go onto the computer type in the address given, type in the password given (or scan the QR code). Go to settings and under security (if your running the new ICS or Jellybean) or go to settings->apps->managment and select unknown sources(for gingerbread) then click on (I think) speed install, or something along those lines. it will be on the top of the page slightly towards the left. drag and drop as many .apks as you want then on you android just tap the install buttons that appear. Airdroid is wonderful and does a lot more than just apks.
This procedure works even if ADB is not available.
adb install <path_to_apk>
http://developer.android.com/guide/developing/tools/adb.html#move
Just connect the device to the PC with a USB cable, then copy the .apk file to the device. On the device, touch the APK file in the file explorer to install it.
You could also offer the .apk on your website. People can download it, then touch it to install.
3 Ways to Install Applications On Android Without The Market
And don't forget to enable Unknown sources in your Android device Settings, before installing apk, else Android platform will not allow you to install apk directly