PreOrder Me

best pre-order app for our specific use case. it is the only app at the moment that lets you define preorder rules on a per-variant base, which is exactly what we were looking for. you can also define prompt messages regarding delivery times, etc. on a per-variant base. easyshop's support has been fast replying and really helpful with some tunings and enhancements we asked for. totally recommend this app to anyone who needs finesse in their pre-order operations!