Have you used Redis exclusively for data caching purposes?

Redis is often used as a cache, but its capabilities are much broader. Besides caching, Redis is used for:

• Storing user sessions in web applications
• Implementing message queues and publish/subscribe systems (pub/sub)
• Counting and aggregating real-time statistics
• Storing temporary data with TTL
• Implementing distributed locks

Thus, Redis is not just a cache, but a full-fledged data store with high performance and various data structures (strings, lists, sets, hashes, etc.).