For some apps auto rotation is good. But for some apps if we apply auto rotation, its really annoying. For example if you are viewing a photo in Gallery you may need both Landscape and Portrait. But in some apps you need only Portrait mode. But when we enable auto rotation on Android it automatically choose Landscape or Portrait mode according to the accelerometer readings.
What if we need to enable only landscape mode to apps or we need auto rotation in some apps or disable auto rotation to some apps. For all these we need a third party app called Smart Rotator. As the name says it is a smart application. Here is the download link and some screenshots.
Download Smart Rotator