Thanks OSS and CC
Refind would not be possible without the work of many others. Thanks!
Design
The human illustrations we use prominently are made with Pablo Stanley’s awesome design library Humaaans. We use many icons from Font Awesome and by individual designers found on the Noun Project, such as the robot by Aaron K. Kim, the message icon by Dinosoft Labs, the cog icon by Giannis Choulakis, the chevron left icon by Royyan Razka, the pen icon by Adrien Coquet, the font size icon by iconsmind.com, the check icon by James Kocsis, the heart icon by Shashank Singh, the notification icon by Yana Marudova, the notification off icon also by Yana Marudova, the ellipsis icon by David, the document icon by Ralf Schmitzer, the collection icon by Markus, the link icon by Kimmi Studio, the headphones icon by fizae, the plus icon by Three Six Five, the bell icon by creative outlet, the coin icon by romzicon, the quill icon by Hea Poh Lin, the sprout icon by Blair Adams, the list icon by Nur Jana, the image icon by Mohammad Iqbal, the moon icon by Deemak Daksina, and the sun icon by Andrey Vasiliev. Also, we love Raul Taciu's beautiful social icons. The firework effect at the bottom of the daily picks was made by Jack Rugile. The placeholder we use for links without image is based on Linea, the nice outline iconset colors. We also use Hero Patterns, an awesome collection of SVG patterns, for some of our backgrounds. And a special shout-out goes to Van Schneider—we use his beautiful color pairings for the colors you can use for posts.
Code
We write our backend mainly in Ruby and host on Heroku. We don’t use Rails but Sinatra, we use Postgres and Redis, and Sidekiq for background processes. We use a number of tools such as Librato, Skylight, Airbrake, and Logentries, and a host of gems, such as Twitter, Markio, and Pocket. Our crawlers are hosted on Joyent but we also use Mercury. For some high-performance tasks, we use Rust. We use CloudFront as our CDN and S3 for some parts.
We write our frontend mainly in Javascript (Coffee), Slim, and Sass. Sometimes we use Knockout, and we’re very happy with Gulp.
Our mobile apps are hybrid at this point: we write the native parts (share extension, offline access) in Swift for iOS (using many Pods) and in Java for Android. We’ll go all native down the road.
We use git and store (most of) our repos on Bitbucket.
Tools
We’re a tiny team that works mostly remote. We use Trello, Slack, Appear.in, and sometimes Google Docs.