I use Heroku while building out or testing applications - the first dyno is free and additional are $36/month. You can handle a decent amount of traffic on 2-3

I use Heroku while building out or testing applications - the first dyno is free and additional are $36/month. You can handle a decent amount of traffic on 2-3 dynos. To keep dyno time down, set up workers to run only when needed. It would be a good idea to plan ahead for your db needs - AWS is a good solution. Try to run you RDS in the same zone as Heroku.