This version of the app would work on old Android versions. A new and improved version is available in the store.
You can install the new version:
1. You can look for "Recent Apps - Shake & Run"
2. You can use this link that will take you to the new app: https://play.google.com/store/apps/details?id=smlm.app.recentapps4
Support API Level < 20
9Apps 4.9
