What are the requirements for banners?

Platform supports PNG, JPG and GIF file formats. Animated GIF images can be used. We suggest always using PNG banners because they do not loose quality upon upload.
As for size – we suggest using large banner sizes. Some of the recommended sizes are – 970x550, 640x360, 600x600, 580x460.
Different images should be used for tablet and smartphone campaigns. For tablet campaigns recommended image sizes are - 640x360, 600x600, 580x460. Images larger than 700px in width should not be used.
For smartphone campaigns we recommend using images with size 320x320 or 320x480.