This xPDFsuite is for academic licensees for 2-5 users. It is for people working on open academic research at, or for, an academic institution or similar non-profit. Any commercial use requires purchase of commercial license. It is a one-time fee and does not cover future major releases of the code. Minor releases with bug-fixes and small updates are included in the fee. Thank you for purchasing xPDFsuite. Funds from xPDFsuite help to support the development of easy-to-use user interfaces to our Diffpy codes.