Martijn Otter – Freelance Product Designer

I am Martijn Otter, a freelance product designer running my own business as Appstronaut. Working with partners we build native iOS, Android and Web apps. More work on Dribbble.

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Do responsive sites have to be so tall on mobile?

Feb 20, 2017

A good read and a good thing to think about. Do responsive websites have to be so tall on mobile? The easiest way is to just display content as it is on your desktop, but smaller. Let's rethink responsive design.

Read the article


Design voor Google's Pixel XL

Feb 19, 2017

Dutch: Als je mobiele Android apps gaat ontwerpen is momenteel 360 x 640 pixels de meest gangbare maat. Er zijn natuurlijk voldoende devices die afwijken van deze resolutie, maar voor mijn test devices waar ik de designs op bekijk is dit de exacte afmeting. Althans...

Lees het artikel


Abstract is on Netflix!

Feb 13, 2017

Abstract: The Art of Design is a must see for people interested in design. It's finally live on Netflix! My personal favorite is the episode with Tinker Hatfield, the designer behind the Nike Air Max 1, Nike Jordans and plenty of other Nike sneakers.

Watch the trailer


Appstronaut stickers are here!

Feb 10, 2017

Woohoo! Appstronaut stickers are in. Thanks to Stickermule for the sticker printing and Jord Riekwel for the fantastic logo design.


Android instead of iOS

Feb 7, 2017

I am ditching my iPhone for at least a month and will use an Android device, just to understand the User Interface perfectly and get a better feeling about Android's users experience. I'm trying to find out what the most important differences are between both platforms, design and experience wise, which will help me with making new mobile designs in the near future.


Desktop dies on weekends

Jan 31, 2017

Web traffic from desktop computers plummets on weekends as people spend most of their time on mobile once they leave the office on Fridays, according to a study.

Read the article


Using science to make truly tappable user interfaces

Jan 25, 2017

You know that feeling even if you can’t name it — the mix of frustration and annoyance when you’re using a touch interface that you can’t quite get to work correctly. When you feel like you have to touch delicately just to trigger that command that’s right there in plain sight.

Read the article


Apple's UI Resources

Jan 19, 2017

Apple has finally released their own UI design kit. You can download the kits for both Sketch and Photoshop.

Download the resources


Test color blindness on your designs

Jan 19, 2017

From the perspective of a color blind person, some colors are impossible to distinguish. Sim Daltonism lets you visualize colors as they are perceived with various types of color blindness.

Download the app


Iemand App

Jan 5, 2017

I have been working on a new app called Iemand. It is a new home-cleaning booking app, in the Netherlands. It's live now but the design has been changed quite a bit, which I didn't do.

See more on Dribbble


Appstronaut Dribbble team

Jan 4, 2017

Yeah! We got our Appstronaut Dribbble team account. Be sure to give us a follow. We'll be updating our team account with more shots soon.

See more on Dribbble


Mobile Overview Report

Nov 11, 2016

40% of Android traffic comes from 185 models priced >$600. A quarter comes from 1438 models <$200.

See the reports


Tickee is live!

Oct 22, 2016

We launched our first version of our own app Tickee! Tickee allows you to share tickets with your friends.



Audi Asks Photographer To Photograph Their $160,000 Sports Car, He Uses $40 Miniature Toy Car Instead

Oct 17, 2016

When Audi commissioned photographer Felix Hernandez Rodriguez (previously here) to photograph their sports car Audi R8, we knew that something wasn’t right. Turns out, he shot the $160,000 car by using a $40 scale model!

See the results