The free System Usability Scale service
Run a free System Usability Scale survey and get valuable insights of the usability and learnability of your
product. The response form is multilingual and works in French, English, German, Spanish and Swedish.
How QuickSus works
Running a System Usability Scale survey in QuickSus is easy! The System Usability Scale (SUS) is a simple, ten-item attitude questionnaire giving a global view of subjective assessments of usability. The System Usability Scale has been widely used in the evaluation of a range of products over the eyars and has been shown to detect differences at smaller sample sizes than other questionnaires.
With as few as 8-12 respondents you will get valuable insights on your product's usability and learnability.
Benefits of the System Usability Scale (SUS)
Reliable
Users respond consistently to the scale items, and SUS has been shown to detect differences at smaller sample sizes than other questionnaires. *
Valid
SUS measures what it purports to measure, providing accurate and meaningful insights into your system's usability.
Comprehensive
SUS measures both learnability and usability, giving you a better picture of your products's user experience.
* Journal of Usability Studies, Vol. 8, Issue 2, February 2013
The System Usability Scale
In systems engineering, the system usability scale (SUS) is a simple, ten-item attitude Likert scale giving a global view of subjective assessments of usability. It was developed by John Brooke at Digital Equipment Corporation in the UK in 1986 as a tool to be used in usability engineering of electronic office systems.
The SUS has been widely used in the evaluation of a range of systems. Bangor, Kortum and Miller have used the scale extensively over a ten-year period and have produced normative data that allow SUS ratings to be positioned relative to other systems.
SUS in research:
- SUS: A Retrospective, John Brooke, Journal of Usability Studies, 2013
- System Usability Scale Benchmarking for Digital Health Apps: Meta-analysis, JMIR Mhealth Uhealth. 2022
- Item Benchmarks for the System Usability Scale, James R. Lewis, Ph.D, Jeff Sauro, PhD, Journal of User Experience, 2018
- Determining What Individual SUS Scores Mean: Adding an Adjective Rating Scale, Aaron Bangor, Philip Kortum, James Miller, Journal of User Experience, 2009.