This is a fantastic web app that allows you to record your screen and create a screencast without the need to download any software programs. It is web based and you can start and record your screencasts instantly. All you need to do is to click the record button and then capture your screen video and your voice. It is fun and easy to do. Screenr allows you to record up to 5 minutes of video. Once you have your computer screen captured you can then share the video on your favorite sites right from Screenr. It allows allows you to signin with Yahoo, Google, Facebook and Twitter. Once your done recording your screencast you can then share it on Facebook, Twiter or YouTube. You can also publicly share it on Screenr or embed it on your own site.
This web app offers most functionality as all other screencast software and being web based there is no need for any installation. However you would need to have a fast enough internet connection to record your video properly. You can record on your PC or MAC and the videos you record can also be played on mobile devices. All you need to do is to click the record button and put the recording frame where you need it. Add your microphone and start. You can pause it an any time and then continue with your video. The screencast you record can also be played on an iPhone.