Silverback is a user-centered design consultancy based in Brighton, UK, and they have developed a remarkable product known as Silverback 3. This innovative software allows users to conduct guerrilla usability testing effortlessly on Mac devices. However, as of May 1, 2019, Silverback is no longer available for download or purchase.

Nonetheless, Clearleft, the parent company of Silverback, will continue to provide support to existing customers for six months following the retirement of the software. Although the decision to retire Silverback has been made, it's important to note that the software has served its purpose by promoting usability testing within the design community. Now, there are numerous exceptional usability tools available with dedicated teams working towards their support and advancement.

Clearleft is sincerely grateful to all their customers who supported Silverback for the past decade. So, thank you and happy testing!