Visit your phone's mobile app store to access free applications. If you have an Android device, open the Google Play Store, or if you have an iOS device, open the Apple App Store. Type "free" into the search field in each app store, or select the free category.
While some mobile applications are free to download, beware of in-app charges or recurring subscription payments. The Google Play Store and Apple App Store both offer users the ability to sort free and paid apps. Each month, both Google and Apple showcase paid applications available to download for free for a limited time, as of 2015.