If you have modest needs of it, just run it on the same machine.
The whole point of redis is low latency data queries, which running on some third-party service you lose.
The whole point of redis is low latency data queries, which running on some third-party service you lose.
And again, just because I can do it myself doesn't mean I should. I came into adulthood as a sysadmin. I can take a project from bolting racks into the floor to writing front-end code, but I don't. There are better ways.
Sometimes you don't have that option (e.g. Heroku).