The Free plan lets you run a single non-highly available Redis database with up to 30MB and 30 connections, forever (or as long as you use it)! It lets you run Redis Enterprise Cloud in a selected region across all three major public clouds (Amazon Web Services, Microsoft Azure, and Google Cloud). You can use  all available Redis modules: RediSearch, RedisJSON, RedisGraph, RedisTimeSeries, and RedisBloom. Best of all, it’s totally free, no credit card required. 

https://redis.com/blog/new-pricing-for-redis-enterprise-cloud/