Donations to support PSS delivery

It costs around USD $800 per month to provide cloud-based servers and storage for your use of these systems.  These costs can only be funded sustainably by those who use the systems since the operational delivery of these systems cannot be funded under research grants and contracts.

If you make educational, research or charitable use of them please donate what you can (as little as £1) towards these costs through PayPal's express payment button below. Note that PayPal will take 1.4% + 20p of your donation, we will receive the rest.

A donation does not provide you with any kind of data or software license or warranty. For professional and commercial uses you must buy the appropriate license.