AIOD BOGO Gift Volume Discount

We used this app primarily for tiered level discounts: ie buy 6 get 10%, buy 12 get 15%. Sometimes the discount applied at checkout..and sometimes it didnt, the developers although responsive upon first installation (this is second star or i would have given 1) they could not figure out why the discount would not go through on some orders. this app also means you cannot use shopify discounts on ...

I can’t install it and always report an error 500. If I can install it and use it normally, I might actually use it. Maybe it’s because the product is being updated, but now I can’t use it

very hard to understand settings and totally incompetent support chat. total waste of time even trying it.
It only is 2 stars and not 1 because support was able to point out how to do a clean uninstall without code left.