MB Push Down Hide Out of Stock

This app can sort sold out products to the bottom of any collection AND move it back up to where it was when it is back in stock.

Sorting each collection is surprisingly fast, as is the updating when the product is back in stock.

Next up: Price. This app is actually quite a bit cheaper than some of the comparable apps I have seen as well.

Installation: A breeze. The app adds no scripts/css/fonts/other junk in your shopify header, and have zero negative impact on pagespeed from what I have seen.

Functionality: The app can be installed, tested, and removed again without hassle. Functionality is not too complex - It does exactly what it's supposed to, and it does it well.

Customer service: I emailed them on a Sunday, and got a response shortly after. I emailed them again monday, and got a (helpful) response within an hour.

Conclusion: Fantastic app to manage larger collections. We are already seeing a noticeable increase in conversion rate and add to cart rate.