If you have ever ordered any items from SuperMemo Store, you can now upgrade directly to SuperMemo 16 for Windows. In particular, if you have ordered SuperMemo freeware items, you can now upgrade immediately and directly to SuperMemo 16.
You will receive a new unlock password within a business day.
Important! If you plan to upgrade to SuperMemo 17 or newer, you will need SuperMemo 16 as an intermediary step. SuperMemo 17 cannot import collections created with older SuperMemos except for SuperMemo 16.