I am currently using the Pause And Build plan.
I am also working on a Japanese/English site with Langify.
However, Langify doesn't translate all the pages well and I'm considering upgrading to the "Shopify" plan.
(1) If I upgrade, will I no longer be able to use the Pause And Build plan?
(2) I have not tried the plan "Shopify". Can't I try it for free?
Regarding your question on Shopify trial plans, I've found an informative article for you here: https://avada.io/shopify/docs/get-free-shopify-trial.html Hope it will help you!