Android owners are being warned to delete certain apps that have been found to slow down a phone’s hardware performance and drain its battery life.

It’s believed the apps have been downloaded 20 million times.

The full list of apps:

• BusanBus
• Currency Converter
• EzDica
• EzNotes
• Flashlight+
• High-Speed Camera
• Instagram Profile Downloader
• Joycode
• K-Dictionary
• Quick Note
• Smart Task Manager

Image: Getty