As User said, celery is very advanced, and powerful with a lot of features, it also comes with complexity, you need more time to master it before using. read more
Broker support. Celery is the clear winner, RQ only supports Redis. This means less documentation on"what is a broker", but also means you cannot switch brokers in the future if Redis no longer works for you. For example, Instagram considered both Redis and RabbitMQ with Celery. read more