We specialise in User Interface Design.

You Know Who is the small design studio run by Sarah Parmenter. We’re based in England and specialise in attractive, intuitive interfaces for iOS and the web.

Since 2003 we've been designing, developing and consulting on some of the best websites and mobile apps around.
We'd love to see if we can help you too.

Get in touch
iPad & iPhone User Interface Design
We've worked with...
  • National Breast Cancer Foundation
  • Blackberry
  • News International
  • Scottish TV
  • Computer Arts
  • Pixelmags
From the blog
A handy list of CRM’s

The other day, we asked twitter to come up with a list of the best CRM’s and we promised to share that with the world. Here we are.

Tuesday, February 26, 2013

What we do.

  • User Interface Design

    Design of your native apps or web apps. We have experience with iOS, Android and Blackberry as well as designing responsively for the web. We don't just build pretty pictures, we craft functional, usable interfaces that are a delight to use.

  • General Consultancy

    Whether you need a fresh set of eyes, some user experience help or some creative direction for your app or website, we're happy to consult. We charge consultancy on an hourly, half day or day basis, providing you with actionable tasks at the end of each session.

  • iOS Design & Development

    iOS Design is our thing. We also have a fantastic in-house developer who will take our plans and make them a reality. We have years of experience with this platform and are able to hand-hold on every aspect from start to finish.

    Many of our apps have been featured on the app store in "New and Noteworthy" throughout the years.

    Sarah also teaches iOS Design at various worldwide workshops and consults for many leading brands both in the UK & abroad.

  • Web Design & Development

    HTML & CSS is our forté but we also love WordPress and ExpressionEngine for dynamic sites. We also have experience with e-commerce and large web apps.

  • Copywriting

    Your site is only as good as the content inside it. We regularly do rewrites to make you sound less like a machine and a little more human in your communication. Contact us about this service.