I am considering building a tool for ecommerce website. Have lots of experience with woocommerce, little with shopify. Common wisdom would be to target woocommerce. But I wonder about market dynamics, relative size of market, and maybe other factors that could be relevant.
I know Shopify has an app marketplace that is frequently used. That should lower the CAC.
To answer part of my own questions, this article provides some interesting stats about market size of woocommerce vs shopify (22 vs 18pct of market):
https://barn2.co.uk/woocommerce-stats/
Despite WooCommerce having a larger market share, I think Shopify is a lot bigger when it comes to e-commerce sites that are actually making money.
Don't underestimate the increased Willingness-To-Purchase from site owners that are already paying a small amount to have their solution hosted.
These are 2 very good points, thank you!