Yes, you can choose a different size for your images other than square. You can select from:
Square (1:1 aspect ratio)
Landscape (4:3 aspect ratio)
Portrait (2:3 aspect ratio).
Please note that this feature is only available under the Photo Resize Pro plan.
Go to the Settings tab
Scroll down to view the Advanced Resize Options
Choose your preferred aspect ratio
Click Save
After clicking the Save button, the app will re-analyze your store again in preparation for the new settings you have chosen.