Unsub is fully open source, built and supported by the nonprofit Our Research. We're funded in part by a gran from Arcadia - a charitable fund of Lisbet Rausing and Peter Baldwin, but we also rely on support from Librarians Like You.

Our support model is based on the size of your library's current annual budget for materials (print and electronic serials, books, and so forth).

Here are the pricing tiers:

Library materials budget (USD)

Cost (USD)

$0 - 500,000


$500,000 - 1,000,000


$1,000,000 - 1,500,000


$1,500,000 - 2,000,000


$2,000,000 - 2,500,000


$2,500,000 and above


If you're not able to determine your library materials budget, use your best estimate. If you're on the border between two tiers, feel free to pick the lower one.

If your budget isn't in US Dollars, just convert it from your local currency into USD and then use the chart above as usual. Some folks like to use the average exchange rate over the last year, while others prefer to use today's rate; either is fine by us.

If you're looking to get a quote a consortium, rather than a single institution, then please get in touch with us, either by email (team@ourresearch.org) or the blue button at the bottom right of your screen.

If you'd like to request and invoice and get started with Unsub, you can do that on our purchase page here.

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