"I have worked with Callum on multiple projects, and he is incredibly talented, meticulous, and reliable. I can always count on him to deliver fantastic designs in a reasonable timeframe. Working with him is always a pleasure, and I can't recommend him more!"
- Kenny Yu / CloudFish

"I had a chance to work with Callum on the redesign of our iPad application and was pleasantly surprised with his approach to work. To start with, all emails I received from Callum were sent during normal working hours – not a single one at 2AM! Together with his general punctuality of delivering project milestones, I consider Callum's time management to be very good. Callum has great capability to solve the problems that the design is intended to solve and is never afraid to generate ideas. I recommend working with this talented designer!"
- Sergey Mikhanov / Scalar iPad App

"It's always a joy to work with Callum. Not only is he a skilled designer, his professionalism and friendliness really sets him apart from other designers I have worked with."
- Jon Phillips / Spyre Studios

"I worked with Callum on a Picmix Store project; he was a pleasure to work with. His communication with me was spot on, he was always quick to respond to questions!"
- Tahgasa Bertram / Sweaty Eskimo

"Callum is a quickly rising star in the design world. His work in mobile and web design demonstrates ability to adapt his creativity to any medium in pursuit of the perfect pixel"
- Mark Hammonds / Mobiletuts+