How to zoom in on product images before clicking on them?

[nylasammimoos]

Is there any apps that will allow people to hover over products on your store and it then zooms in BEFORE they click through to the product page.  I want to know because I like the look of showing the product versus only the design on my page, but sometimes the designs are hard to see. 

[qalo834]

If you are looking for best app for your store you can visithere and see some ideas about your field then decide to make an app.