High Voltage vs Spree: What are the differences?
What is High Voltage? Easily include static pages in your Rails app. Write your static pages and put them in the RAILS_ROOT/app/views/pages directory.
What is Spree? A complete open source ecommerce solution for Ruby on Rails. The Spree storefront offers a full feature set and is built on common standards, so you don't have to compromise speed to market, efficiency or innovation. The modular platform allows you to easily configure, supplement or replace any functionality you need, so that you can build the exact storefront that you want.
High Voltage belongs to "Static Site Generators" category of the tech stack, while Spree can be primarily classified under "Ecommerce".
High Voltage and Spree are both open source tools. Spree with 9.84K GitHub stars and 4.32K forks on GitHub appears to be more popular than High Voltage with 2.93K GitHub stars and 157 GitHub forks.