Amai Bulk Discount & Sales

works well, but the recent update makes scheduling sales a real pain... still works but i wish they'd bring back the dropdown for the time. also, the ipad mobile version needs some work as its not as stable. (developers... keep in mind a LOT of small retailers are operating almost exclusively on ipads now, not desktops or laptops, and having to wait till I'm home to finish work is seriously stressful)

not sure if the new updated version still allows you to pick and choose select varients to discount, but it used to, though it was highly unstable except on the desktop version. that was HUGELY helpful, though needed to be reliable in ipad too.