# App to compare two images.
There are four compare modes.
- Concurrent: Compare side-by-side.
- Slide: Compare by using a slider.
- Opacity: Compare by changing transparent/opacity.
- Difference: Compare by subtracting images.
- Express: Resize the image to screen width before processing.
- Original: Processing with the original scale. Itll take minutes to finish. *The images must be the same size.
- You can zoom in to see the details on the Slide, Opacity, and Difference views.
- You can export generated images on the Difference view.