Product Design
Kojitsu was a web application I designed and built in 2014 to combat the fear of missing out (FOMO) on social networks. Once hooked up to your Twitter and Facebook accounts Kojitsu would monitor your feed for any links shared by your friends. Every morning you’d wake up to a digest of the ten best links from the day before.
Building Kojitsu primarily for myself gave me the creative freedom to take the product in any direction I believed in.
I have always had a strong focus on simplicity and spent countless days working to ensure every aspect of Kojitsu was as simple and intuitive as possible.
One of my favourite features was the integration with Read it Later services Instapaper and Pocket. Once connected you could save a link simply by clicking a bookmark icon. This worked in both the web UI and daily summary emails and was one of the most used features within the app.
I’ve tried a number of these services: this is the first one that actually works. It consistently sends me an email with great links that I missed from my friends’ Twitter streams. Really valuable service from @mattantwest - Justin Jackson
Building Kojitsu allowed me to hone my Rails skills and experiment with different server setups. I designed the server infrastructure to scale horizontally, using Digital Ocean as my provider for affordable computing power. While simple on the surface, behind the scenes Kojitsu was running:
All of this paved the way for a scaleable server infrastructure but also considerably increased the cost of running the service.
By talking to users and examining the MixPanel and Intercom data I could see that Kojitsu was solving the problem it set out to tackle. The problem was that I had fallen into the trap of launching a product without any real business model. The more users I got, the more computing power needed to crawl feeds and ultimately the more money it was costing to run Kojitsu.
After a few failed attempts to monetise Kojitsu I shut the service down in July 2014. It had been an immensely rewarding experience but it was time to move on.
You can read more about my decision to shut down Kojitsu in my journal article: Killing Kojitsu.