We needed to update our quantity field to account for the increments (case packs) we sell for our commercial line (I wanted a customer to hit the quantity plus button and have the quantity increase from 25 to 50 instead of by 1 unit). Shopify Plus Catalogs provides this, but only if you require log in for customers and we wanted customers to be able to find us and shop our products without already having an account. Extendons was extremely easy to implement - it is very intuitive and when I wanted to ensure the look matched our theme completely I reached out to customer support and got an immediate response that was exactly what I was looking for - so happy with this app so far and their kind assistance!

QTY app is becoming more and more compatible, better and better now. It's appreciated that it has the function to set different qty starter numbers, and intervals for each product, quite good for wholesale business. Most importantly, it's low cost too