Resizely it's very cool tool for resize and compress images for iOS and MacOs applications.
To publish your app to Apple, resources are needed in at least two dimensions: @1x and @2x. Ideal even have a size of @3x. And do not always have at hand all the necessary amount of resources when you designs a prototype or final application. Perhaps the designer is not available, to ask him to make the desired image size. In this case we have created Resizely. This service will help to get the necessary size of the graphics to develop for iOS or the Mac: @1x, @2x, @3x.
To all the images after resizing looked great, the original image size should be the size @3x. But if you designs a prototype, believe me, using @1x schedule as a starting point, the device will look satisfactory.
In addition to resize functions, the service will help you optimize the size of any PNG file. Image Optimization can reach 90% without any loss in image quality!