Perhaps the most versatile photo manipulation app for Android. This app is like mini Photoshop. The best part about SketchBook Express, which is manufactured by Autodesk, is that it has the capability of using layers – albeit only up to three. That is still a huge deal, especially because the free version of Adobe’s Photoshop app and the Lightroom app still has a lot of room for improvement. SketchBook Express looks and feels much like Photoshop or Corel Draw – you can free transform images, crop them asymmetrically, use a brush tool, create collages, add text – the possibilities are endless! it does not let you make light or color based adjustments to your standalone photos, but you can export edited photos through Snapseed and make quick banners and ads!