I'm James Potter, a maker, founder and full-stack developer from the UK.

I'm currently working full-time on building Rephonic.

Rephonic is a podcast outreach database with estimated listeners, social reach and contacts across 2.5m+ podcasts.

November 2020 React Django Dramatiq Elasticsearch

Rate This Podcast lets you create a short, memorable link to read on-air that gets you more ratings and reviews for your podcast.

January 2020 React Django

Wikiscope uses your current location to find Wikipedia articles tagged to the world around you and overlays them on to your phone's camera.

Featured by Apple in APAC.

October 2019 React Native Three.js

Jackfruit is a bot for remote teams that adds an always-on video room to your Slack channels.

Acquired in November 2019.

July 2019 Django React Redux WebRTC

I crossed the United States coast-to-coast in Georgia, a converted cargo van. The trip spanned 3400 miles across 11 states.

May 2019

QTIME is a Wi-Fi connected HDMI cable and smartphone app that lets parents set daily time limits for their kid's games console. I created it with my dad and we manufactured it in China.

June 2017 Django React Native C Firebase

Lokasi combines your Moves location history with Google Street View imagery to create an automatic visual diary.

Moves shut down so this is offline while I find a new provider.

July 2017 Django Moves API Street View API

Stretch is a bit like Uber. Except that it's free, there is only one vehicle available (a limousine) and it could be literally anywhere in the United States at this moment.

May 2017 React Native Django

The Limo Diaries was an expedition to drive a 28-foot Lincoln stretch limousine to all of the 'lower 48' contiguous US states.

It took us three months, 15000 miles of driving and three visits to a mechanic.

March — June 2017

Siphon was an attempt to create a Heroku-like workflow for publishing React Native apps.

Oct 2015 — July 2016 React Native Go Python Django Objective-C Java

Tradewave was an algorithmic trading platform for cryptocurrencies that let you write trading strategies, backtest them and trade live. All in the browser.

Raised seed funding and scaled it to 30+ trading/backtesting servers and $1m+ monthly trading volumes at its peak.

2014 — 2015 Django Python/Cython Backbone RabbitMQ Pandas

GuestSort was a viral guest list and event registration app for iPhone and iPad. Freelance project for a client.

November 2013 Objective-C iPhone SDK

Poster Montage was an iPad app that let you rotate, arrange and zoom your photos any way you like, to create poster-sized collages.

July 2013 Objective-C iPhone SDK

Color Scheme for iPhone lets you extract a palette of colours from any scene. Simply snap a picture or select an existing image from your gallery.

July 2012 Objective-C iPhone SDK

I spent the summer of 2011 interning at InboxQ, a Y Combinator company based in San Francisco.

I built a native iPhone app to bring their service to mobile. It was my first production app for iPhone.

July 2011 Objective-C iPhone SDK

Color Scheme for Android was my first attempt at building a native Android app and somehow it's still live and actually works.

It lets you extract a palette of colours from any scene. Simply snap a picture or select an existing image from your gallery. 40,000+ downloads.

May 2011 Java Android SDK