Redis 1.0 for Mac was available to download from the developer's website when we last checked. We cannot confirm if there is a free download of this app available. We recommend checking the downloaded files with any free antivirus. Redis for Mac relates to Developer Tools. This free Mac app was originally produced by antirez.
From the developer:
Redis is an open source (BSD licensed), in-memory data structure store, used as a database, cache and message broker. It supports data structures such as strings, hashes, lists, sets, sorted sets with range queries, bitmaps, hyperloglogs and geospatial indexes with radius queries.
You may want to check out more Mac applications, such as Redis Desktop Manager, iRedis or FastoRedis, which might be similar to Redis.
Database Tools