Price: Free

Platform(s):Android

We won't call Google Drive a Dropbox killer—that would be premature. However, we do think Google Drive is a Dropbox bully. Formerly known as Google Docs, Drive is a cloud-based storage service that allows you to also collaborate in real-time on documents. While the iOS Google Drive app only lets you view documents, the Android version allows you to edit documents directly from your phone or tablet.