PhotoDirector is a neat app filled with all sort of filters and tools for enhancing your pictures and making them stand out. Read more about PhotoDirector  

The app has features for adjusting HSL sliders and RGB color channels, as well as brightness, exposure and contrast on your pictures. You can create collages with multiple images, add filters, adjust frames and edit images in multiple ways. It applies filters in the camera mode and you can use the app to add mirror effects or adjust overlays on your photos.
HDR, photo effects and layer editing is available inside the app, you can add an extra image to your photo or remove an unwanted object from the image. The app can save images in Ultra HD 4K resolution and it comes with tools for sharing photos on social networks. It also has lots of stickers and text bubbles that you can add to images.