--- title: "redis vs UStore" type: "comparison" canonical_url: "https://www.graphcanon.com/compare/redis-redis-vs-unum-cloud-ustore" tools: ["redis-redis", "unum-cloud-ustore"] --- # redis vs UStore *GraphCanon updated Jul 11, 2026* ## Verdict Pick redis when redis is primarily C; UStore is C++; pick UStore when uStore is primarily C++; redis is C. [redis](http://redis.io) reports 75k GitHub stars, 25k forks, and 2.9k open issues, last pushed Jul 10, 2026. [UStore](https://unum.cloud/ustore) has 635 stars, 36 forks, and 29 open issues, last pushed Sep 1, 2023. Figures are from public GitHub metadata via [redis's repository](https://github.com/redis/redis) and [UStore's repository](https://github.com/unum-cloud/UStore). | | [redis](/tools/redis-redis.md) | [UStore](/tools/unum-cloud-ustore.md) | | --- | --- | --- | | Tagline | Redis is a preferred cache, data structure server, and document & vector query engine for real-time applications. | Multi-Modal Database replacing MongoDB, Neo4J, and Elastic with 1 faster ACID solution, with NetworkX and Pandas interfaces, and bindings for C 99, C++ 17, Python 3, Java, GoLang 🗄️ | | Stars | 75,394 | 635 | | Forks | 24,718 | 36 | | Open issues | 2,867 | 29 | | Language | C | C++ | | Adopt for | Redis is an in-memory database designed as a versatile cache and data structure store with advanced features such as JSON operations and vector searches, making it suitable for real-time applications. | - | | Persona | - | - | | Runtime | - | - | | License | Other | Apache-2.0 | | Categories | Vector Databases, Data & Retrieval | Vector Databases, Data & Retrieval | ## Trust and health _Sourced signals - not a safety guarantee. No winner column._ | | [redis](/tools/redis-redis.md) | [UStore](/tools/unum-cloud-ustore.md) | | --- | --- | --- | | Maintenance | Very active (96%) | Dormant (18%) | | Days since push | 0d | 1043d | | Open issues (now) | 2.9k | 29 | | Full report | [trust report](/tools/redis-redis/trust.md) | [trust report](/tools/unum-cloud-ustore/trust.md) | ## Decision facts: redis - **Adopt for:** Redis is an in-memory database designed as a versatile cache and data structure store with advanced features such as JSON operations and vector searches, making it suitable for real-time applications. ## Choose when ### Choose redis if… - redis is primarily C; UStore is C++. - License: redis is Other, UStore is Apache-2.0. - Tags unique to redis: cache, json, nosql, in-memory. - You need high-speed access to frequently used data due to Redis's in-memory nature. ### Choose UStore if… - UStore is primarily C++; redis is C. - License: UStore is Apache-2.0, redis is Other. - Tags unique to UStore: apache-arrow, big-data, arrow, dataloader. ## When NOT to use redis - Your project has limited memory resources since Redis relies on in-memory storage, which could lead to high costs or operational challenges with large datasets. - You prioritize persistence over speed; while Redis offers persistence options, its primary design is for real-time access and not robust disk-based backup solutions like traditional SQL databases. - Your application workload does not benefit from the fast read/write capabilities and rich data structure support offered by Redis, possibly implying that a less specialized database would suffice. ## When NOT to use UStore - Last GitHub push was 1044 days ago (dormant maintenance, Sep 1, 2023). Validate activity before betting a new project on UStore. - Vector Databases: Don't reach for a dedicated vector DB under ~100k vectors; pgvector on your existing Postgres is simpler to operate. - Data & Retrieval: Skip a heavy ingestion framework when your corpus is small and static; a script plus the embedding API is enough. ## Common questions ### What is the difference between redis and UStore? redis: Redis is a preferred cache, data structure server, and document & vector query engine for real-time applications.. UStore: Multi-Modal Database replacing MongoDB, Neo4J, and Elastic with 1 faster ACID solution, with NetworkX and Pandas interfaces, and bindings for C 99, C++ 17, Python 3, Java, GoLang 🗄️. See the comparison table for live GitHub stats and shared categories. ### When should I choose redis over UStore? Choose redis over UStore when redis is primarily C; UStore is C++; License: redis is Other, UStore is Apache-2.0; Tags unique to redis: cache, json, nosql, in-memory; You need high-speed access to frequently used data due to Redis's in-memory nature. ### When should I choose UStore over redis? Choose UStore over redis when UStore is primarily C++; redis is C; License: UStore is Apache-2.0, redis is Other; Tags unique to UStore: apache-arrow, big-data, arrow, dataloader. ### When should I avoid redis? Your project has limited memory resources since Redis relies on in-memory storage, which could lead to high costs or operational challenges with large datasets. You prioritize persistence over speed; while Redis offers persistence options, its primary design is for real-time access and not robust disk-based backup solutions like traditional SQL databases. Your application workload does not benefit from the fast read/write capabilities and rich data structure support offered by Redis, possibly implying that a less specialized database would suffice. ### When should I avoid UStore? Last GitHub push was 1044 days ago (dormant maintenance, Sep 1, 2023). Validate activity before betting a new project on UStore. Vector Databases: Don't reach for a dedicated vector DB under ~100k vectors; pgvector on your existing Postgres is simpler to operate. Data & Retrieval: Skip a heavy ingestion framework when your corpus is small and static; a script plus the embedding API is enough. ### Is redis or UStore more popular on GitHub? redis has more GitHub stars (75,394 vs 635). Stars measure visibility, not whether either tool fits your constraints. ### Are redis and UStore open source? Yes - both are open-source projects on GitHub (redis: Other, UStore: Apache-2.0). ### Where can I find alternatives to redis or UStore? GraphCanon lists graph-backed alternatives at [redis alternatives](/tools/redis-redis/alternatives) and [UStore alternatives](/tools/unum-cloud-ustore/alternatives) ([redis markdown twin](/tools/redis-redis/alternatives.md), [UStore markdown twin](/tools/unum-cloud-ustore/alternatives.md)), ranked by typed relationship edges rather than popularity votes. ### Is there a machine-readable version of this comparison? Yes. The markdown twin at [this comparison](/compare/redis-redis-vs-unum-cloud-ustore.md) mirrors this page for agents and LLM crawlers, with the same stats table and FAQ answers. ### Which is better maintained, redis or UStore? redis: Very active. UStore: Dormant. Compare maintenance labels, days since push, and release cadence in the trust section below - stars alone do not measure maintenance. ### Where are the full trust reports for redis and UStore? GraphCanon publishes per-repo trust reports with dated maintenance, provenance, and scan summaries: [redis trust report](/tools/redis-redis/trust); [UStore trust report](/tools/unum-cloud-ustore/trust). --- **Machine-readable endpoints** - JSON: [`/api/graphcanon/graph?tool=redis-redis`](/api/graphcanon/graph?tool=redis-redis) - LLM index: [/llms.txt](/llms.txt) - Full corpus: [/llms-full.txt](/llms-full.txt) _GraphCanon - The knowledge graph for AI development. https://www.graphcanon.com/_