Google has announced that it is now rolling out better filtering systems to counter fraudulent app rankings on the Play Store. The company says that these are violating the Google Play Developer Policy and will bring harm to the Android community. "From time to time, we observe instances of developers attempting to manipulate the placement of their apps through illegitimate means like fraudulent installs, fake reviews, and incentivized ratings," Google said on the Android Developers Blog. "Today we are rolling out improved detection and filtering systems to combat such manipulation attempts." Apps of developers who keep on using these methods may also be taken down from the Play Store completely.