速いのわくわくするけど$50/月は考えちゃうよなあ -- Choosing the Right Heroku Postgres Plan | Heroku Dev Center https://devcenter.heroku.com/articles/heroku-postgres-plans
devcenter.heroku.comChoosing the Right Heroku Postgres Plan | Heroku Dev CenterUnderstand the differences between the various Heroku Postgres plans and how to choose which one is most appropriate for your use-case.