Offer terminated: Get support memberships for 99 Euros + tax only! Limited offer!

As of November 24th 2022, and only for a limited amount of time, we are offering you a heavily discounted end of year sale of our Psychtoolbox paid support membership licenses, for a substantially reduced price of only 99 Euros (plus tax), instead of the regular 150 Euros for a 12 months membership license!

Buying such a license once a year is a good way to support Psychtoolbox continued existence and health, and also the potential needs of your lab for expert support.

Buy a discounted license: Psychtoolbox | Open source solution

For an overview of what larger improvements have been made to Psychtoolbox over the last two years, its continued popularity and importance to the field, and also about our urgent need for financial support by our users, please watch Celia Fosters talk from VSS 2022 under the following link: What's new with Psychtoolbox - talk at VSS 2022 - YouTube

As you can see from that presentation, in recent years the Psychtoolbox Team has worked hard to improve Psychtoolbox itself and its services on We also kindly ask you to fill out our current user survey if your lab has not done so already, so that we can better understand the needs and wishes of our community. So far participation has been too low. Your careful answers will help us to shape the future of Psychtoolbox.

Fill out our survey: Microsoft Forms

As a thank you for your valuable feedback, you will find an additional discount code for your “Psychtoolbox Support Membership license” purchase after submitting your answers.

Many Thanks for your support and stay healthy!
Mario, Dee, Celia, Ingo and Anna

P.S. Did you know that we’ve joined Twitter a while ago? Click here to follow us for more Psychtoolbox related tips for your next project.

Our christmas discount on the membership has turned into a new-year / winter discount. We’ll keep that up for the remainder of February to give labs a last chance to do the right thing for cheap, now that they should have their funding for 2023 available and decision makers may have recovered from potential christmas food coma. So far a disappointing number of only 30 labs have contributed, in line with disappointing sales from late 2020, 2021 and 2022, suggesting the whole membership program is another failure and this is not the way to financially sustain PTB.

Update: The offer is now over, no discount available anymore.

This was another disappointing failure. We sold a total of 45 support memberships in the time between mid-November and mid-March, which is a whopping 10% more than in the previous years, at a 34% reduced profit per license, resulting in a financial loss of 27% compared to the old pricing. What we would have needed for declaring this a success would have been way in excess of 1000 sold memberships instead of 45.

So the final conclusion after almost 2.5 years of trying all kind of incentives is that the paid support membership / community membership program is a failure and nothing we do can incentivize our users to behave decent, or even rational out of pure self-interest. This even after more than 1000 people confirmed in in-person VSS meetings and online surveys that this is what we should do and surely they will support us financially.

There just seems to be no meaningful capacity for rational mid- to long-term thinking in this field, at least not in the majority of over 99% of our users. Thank you to the ~ 0.5% of decent and supportive people out there though! Unfortunately not enough to save this soft win-win-win approach to funding PTB’s maintenance and development.

We will evaluate new options, but it is time to conclude that we are out of carrots to incentivize people in a soft way to behave in their own self-interest.