How do you show anybody how you created something? It’s about teaching someone how you achieve the goal. Showing how you created an android application over and over for each one is old days. You can create your application and record how you created that using some sort of screen recorder. You will get many option to select such screen recorder application. Any such application will do your job but it is better to choose which one satisfy your need.
Recording what you do on your computer by external camcorder and transferring them back to computer are things of old days. If you are still doing this on this time then you are far behind from current IT development. Why should you record the video from external cam recorder if you can do that right from your computer? This will save your time by reducing the time to transfer recorded video back to computer. The quality of the recorded video is also greater by this method. You can choose if you want to record your voice over or just screen recording is fine for you.
You may have already known about fraps which is most famous among youtubers who creates awesome game play videos. If you asked some of the guys then they will surely give you the name of fraps. By watching those game play videos you can imagine what this fraps tool can do for you. Fraps is free to try but it has paid version to use all features of the software. You can always use fraps cracked if you are short of money. But I highly recommend you to use paid version as this is worth to buy. You can use fraps as bench-marking software. What about screen shooting your videos. Yes this all can be achieved with single software which is fraps. Head over to official site and download fraps trail first to give it a try. If you think you are bound by some limitation on trial then you can try fraps crack as well.