To say that there are a lot of app switchers and launchers available is an understatement. We've covered a few ourselves, including Loopr and Switchr. But why not check out one more?
Quickr (apparently Es aren't popular with devs) allows you to switch quickly between recent apps and system apps on your Samsung Galaxy S3 or other Android device. You can download the APK from the app creator, leducbao, in his XDA forums thread.
Once the APK is on your phone, you can install it by choosing your preferred installer. Grant permission access, hit install, and the app should be ready to go... more