Cost: Free Flickr, the photo-sharing site owned by Yahoo! ( YHOO), recently rolled out a new Android app lets users take photos, apply filters and upload them to sites like Facebook and Twitter. The app was fairly straightforward to use. After taking a photo, we could add a title, description and tag its location. We could also adjust privacy settings to have control over who could see the image. After uploading a photo (which worked relatively quickly), the app let us know if our friends had commented on it.