Basic Server Setup (Heroku)

Heroku is a commercial cloud hosting provider. It is the simplest way to deploy oTree.

The Heroku free plan is sufficient for testing your app, but once you are ready to launch a study, you should upgrade to a paid server, which can handle more traffic. However, Heroku is quite inexpensive, because you only pay for the time you actually use it. If you run a study for only 1 day, you can turn off your dynos and addons, and then you only pay 1/30 of the monthly cost. Often this means you can run a study for just a few dollars.

Heroku setup

The recommended way to deploy to Heroku is to use oTree Hub, which automates your Heroku setup. It’s free for public projects.

The previous instructions for deploying to oTree through the command line and git are here.