GO Product Page Gallery + Zoom by Galaxio lets you fully customize the look and feel of your images. You can set aspect ratio, size, and border configuration. That includes changing border color, radius, and configuring space between images. You also can create a product slider that can be scrolled or swiped in different directions. As for the image gallery, you can choose among different page layouts, as well as set up spacing, size, border color, shape, and image fit of thumbnails.
The app includes zooming functionality that allows your customers to open images in higher resolution on hover or click. These zooming types are called magnifier and lightbox, respectively, and you can choose either one of them or go with both.
This Shopify app is not limited to images. You also receive 3D model support with the possibility to customize autorotation. The app can help you configure videos as well: set autoplay or loop, embed videos from YouTube, etc.
If your store is on a Shopify Trial or Partner plan, then the app is free. The paid plan costs $2.99 per month and guarantees a fully customizable product image gallery with video settings, plus priority support.