Hosting my app in to a production supported site

Hi
I am about to launch my app to my customers and I would like to initially have my app hosted in a free but stable environment but later if my customer wishes to buy the product, I want to productionize it. Pls let me know what option I have.

Thanks

Why not just use the free hosting from meteor?

Otherwise a $5 digital ocean droplet can host a simple app comfortably.