After having used various currency converter applications that are
available on the App Store either free or paid, I found that these
were either too complex, unintuitive, or yet to be updated to new
iPhone screen sizes. Very often these apps have walkthroughs to
explain the complex interactions, navigation or features they
can provide to the user, instead of being simple to use.
I designed Currency to be the simplest and most intuitive currency
converter in the App Store, that would look perfect on any iPhone
The final design focuses on doing one job well: converting a foreign
currency into the customer’s home currency. Features such as currency
fluctuation graphs, in-app settings and notifications were not necessary
for this job.
One of the most unique aspects of Currency is the formatting of the
currencies, with the correct symbol, correct number of decimal places,
decimal divider and group dividers.
The icon is designed to fit perfectly with iOS, presenting Currency as
if it is part of the operating system.
Most currency apps use country flags to illustrate the different
currencies. But some currencies like Bitcoin or the Euro don’t belong to
a specific country. For this reason I instead used currency symbols and
correct currency formatting, along with currency codes to correctly
represent the different currencies.
Some early sketches displayed multiple currencies on the main screen
and used country flags. One of the early designs uses a blue and dark
visual style that I later on retired. When I started development and
showed the app to my friends they seemed confused about which number
they were editing, so I added a text input blinking cursor.
The final design is bright and shows activity indicators when the
currency exchange rates are being updated. Other settings were added
via the iOS Settings based on user request.
This was the first app I developed for iOS, and my first time writing
Swift. The entire development of the application took about 3 months,
with most of it being bug fixes and improvements to the code quality.
The source is available publicly on
The application, website and marketing material was localized to the
US, the UK, Japan, China, Hong Kong, Taiwan, Latin America, Spain
and Portugal. Three months after release, 76% of the downloads came
from the Asia/Pacific region.
Six months after release, Currency was downloaded over 6,000 times and
has an average rating of 4.5 stars. You can download it for free on the
one-to-one personal styling and access to a powerful clothing
Thread is an online
styling service, currently only for men in the UK, that joins the
world’s best fashion stylists and Artificial Intelligence in a single
platform to give users personal styling for free. Thread is a
YC’11 start-up founded by
Benjamin Phillips and
I joined the team in 2014 as a product designer and worked alongside
some of with the smartest people I’ve met so far.
At Thread, we defined the long term vision for the company and broke it
down into product, operations, styling and marketing goals. While I was
part of the Thread product team, I would take on one of these challenge
every week and set it as a weekly goal.
A typical week at Thread would include brainstorming and sketching on
Monday, visual design and critics on Tuesday, prototyping and testing on
Wednesday, development and testing on Thursday and Friday. Every Friday
we would demo the work done and some of these solutions would be shipped
on Monday the following week.
Thread users visit Thread from their mobile more and more over time
devices, however internally we always had the habit of designing
thinking on the desktop browser first. So in this project we looked
at what the ideal mobile experience would be like and how we could
reshape our design and development process to fit a mobile-first
We started by tackling this challenge by designing a native iOS
experience of Thread. We built a wireframe prototype and asked users
to visit our office to use it. After a few interviews, everyone in the
team felt like this was an improvement over the current experience.
We also explored a different direction, that focused on systematizing
our web experience to be more modular and targeted for mobile browsers.
We called this new system Thread Whitechapel. It included new type
styles, new touch interactions, new guidelines for flows and page
content, and a new set of standard HTML components.
This resulted not only in a better mobile experience, but it also
allowed us to design and develop faster while keeping our visual
Thread has a powerful recommendation engine that helps match the outfits
each stylist makes to each client preferences, but when the stylists are
away we can’t generate these recommendations for the users. So how
should Thread work when this is the case?
At the time, stylists could use the Thread engine to find clothing items
and users could receive recommendations from stylists. But a channel
between the user and the Thread engine was missing. During the first
week, myself and Dan Palmer explored how an experience of using Thread’s
engine without having the stylist involved would look like to users.
We developed the concept of a curated store. Imagine a clothing line,
made of the amount of items a person can realistically own. A curated
wardrobe. We wanted an experience similar to walking to a clothing store
and seeing only new items that you would love. This became Thread
Thread has thousands of items and there are thousands of online stores
with thousands of items that are irrelevant to their users. Thread
Browse is the curated shopping experience for when your personal
stylist isn’t available. Designs show the items categorized by outer to
inner-most clothing, and a limited number of results is displayed below.
All matching the user preferences.
Thread has been growing steadily over the last few years and I’m
incredibly proud of all the work we have done together.
Thread will be available worldwide in the near future. If
you’re looking for menswear styling in the UK,
sign up here.
If you’re interested about working at Thread, see their
Other projects involve branding, photography, and software development.
A Year in an Instant
For my first 365 days living in Japan I took an instant photo every day
and published it online. This was a successful Kickstarter project where
the 80 backers get to claim their favorite photo from the blog for
Read the diary here.
15 Days in Japan
One of my most popular side-projects. A travel blog where I documented
my experience traveling completely on my own in a country where I
didn’t speak the language. All photos were taken with a Fuji X100.
See the story here.
A side-project where travelers document their trip on a day-by-day
photo diary. This project was an opportunity to give me more experience
developing Ruby on Rails applications.
Sign up here.
The Scientist is a scientific papers aggregator and reader for iOS. The
design shines in its focus on incredible legible typography.
Get it on the App Store.
Identity and web design project worked on alongside
Marta Dos Santos.
Stylize/d is a fashion blog eager to show the final fashion editorials
and the process in making them. This modernist identity stays away from
most amateur fashion blogs with pink tones and cursive typefaces.
I worked on a rebrand concept for ustwo entirely inspired by the candid
and daring company culture. This included a new logo, website design,
typeface and tone of voice. After some refinement, this became the
studio’s new identity.
See it here.
Logo design for Marili André, a fashion photographer and filmmaker.
Fellow student at Central Saint Martins, London. The connected shapes
try to represent the motion in her work, while clearly following the
style of high end fashion brands.
Thank you for reading. If you would like to discuss more, share feedback
or ask any questions, please get in touch.