# Amazon Simple Storage Service (S3), Cassandra vs Redis Software Comparison | | Amazon Simple Storage Service (S3) | Cassandra | Redis Software | |---|---|---|---| | **Star Rating** | 4.6 out of 5 | 4.1 out of 5 | 4.5 out of 5 | | **Total Reviews** | 948 | 35 | 134 | | **Largest Market Segment** | Enterprise (39.3% of reviews) | Enterprise (48.5% of reviews) | Small-Business (55.0% of reviews) | | **Entry Level Price** | No pricing available | No pricing available | No pricing available | --- ## Top Pros & Cons ### Amazon Simple Storage Service (S3) Pros: - Scalability (9 reviews) - Features (7 reviews) Cons: - Pricing Issues (6 reviews) - Complex Features (3 reviews) ### Cassandra **Not enough data** ### Redis Software Pros: - Useful (2 reviews) - Cost Efficiency (1 reviews) Cons: - Data Size Limitations (1 reviews) - Expensive (1 reviews) --- ## Ratings Comparison | Rating | Amazon Simple Storage Service (S3) | Cassandra | Redis Software | |---|---|---|---| | **Meets Requirements** | 9.2 (681 reviews) | 8.3 (29 reviews) | 8.9 (111 reviews) | | **Ease of Use** | 8.7 (685 reviews) | 7.8 (29 reviews) | 8.8 (111 reviews) | | **Ease of Setup** | 8.6 (341 reviews) | 8.2 (18 reviews) | 8.5 (36 reviews) | | **Ease of Admin** | 8.5 (315 reviews) | 7.9 (16 reviews) | 7.8 (31 reviews) | | **Quality of Support** | 8.6 (605 reviews) | 7.5 (24 reviews) | 7.8 (78 reviews) | | **Has the product been a good partner in doing business?** | 9.0 (299 reviews) | 7.4 (13 reviews) | 8.6 (22 reviews) | | **Product Direction (% positive)** | 9.0 (639 reviews) | 6.9 (26 reviews) | 8.2 (104 reviews) | --- ## Pricing ### Amazon Simple Storage Service (S3) #### Entry-Level Pricing No pricing available #### Free Trial Yes ### Cassandra #### Entry-Level Pricing No pricing available #### Free Trial No information available ### Redis Software #### Entry-Level Pricing No pricing available #### Free Trial No information available --- ## Features Comparison By Category ### Key Value Databases | Product | Score | Reviews | |---|---|---| | **Amazon Simple Storage Service (S3)** | N/A | N/A | | **Cassandra** | N/A | N/A | | **Redis Software** | 8.5/10 | 20 | #### Data Management | Feature | Amazon Simple Storage Service (S3) | Cassandra | Redis Software | |---|---|---|---| | **Data Model** | Not enough data | Not enough data | 8.6 (17 reviews) ✓ Verified | | **Data Types** | Not enough data | Not enough data | 9.1 (18 reviews) ✓ Verified | #### Availability | Feature | Amazon Simple Storage Service (S3) | Cassandra | Redis Software | |---|---|---|---| | **Auto Sharding** | Not enough data | Not enough data | 8.2 (13 reviews) ✓ Verified | | **Auto Recovery** | Not enough data | Not enough data | 8.1 (14 reviews) ✓ Verified | | **Data Replication** | Not enough data | Not enough data | 8.8 (12 reviews) ✓ Verified | #### Performance | Feature | Amazon Simple Storage Service (S3) | Cassandra | Redis Software | |---|---|---|---| | **Integrated Cache** | Not enough data | Not enough data | 8.8 (14 reviews) ✓ Verified | #### Security | Feature | Amazon Simple Storage Service (S3) | Cassandra | Redis Software | |---|---|---|---| | **Role-Based Authorization** | Not enough data | Not enough data | 7.9 (14 reviews) ✓ Verified | | **Authentication** | Not enough data | Not enough data | Feature Not Available | | **Audit Logs** | Not enough data | Not enough data | 8.5 (13 reviews) ✓ Verified | | **Encryption** | Not enough data | Not enough data | 8.6 (14 reviews) ✓ Verified | #### Support | Feature | Amazon Simple Storage Service (S3) | Cassandra | Redis Software | |---|---|---|---| | **Multi-Model** | Not enough data | Not enough data | Feature Not Available | | **Operating Systems** | Not enough data | Not enough data | 8.8 (15 reviews) ✓ Verified | ### Document Databases | Product | Score | Reviews | |---|---|---| | **Amazon Simple Storage Service (S3)** | N/A | N/A | | **Cassandra** | N/A | N/A | | **Redis Software** | 8.5/10 | 9 | #### Data Management | Feature | Amazon Simple Storage Service (S3) | Cassandra | Redis Software | |---|---|---|---| | **Data Model** | Not enough data | Not enough data | 8.3 (5 reviews) | | **Data Types** | Not enough data | Not enough data | 8.3 (7 reviews) | | **Built - In Search** | Not enough data | Not enough data | 7.6 (7 reviews) | | **Event Triggers** | Not enough data | Not enough data | Not enough data | #### Availability | Feature | Amazon Simple Storage Service (S3) | Cassandra | Redis Software | |---|---|---|---| | **Auto Sharding** | Not enough data | Not enough data | 9.3 (5 reviews) | | **Auto Recovery** | Not enough data | Not enough data | Not enough data | | **Data Replication** | Not enough data | Not enough data | Not enough data | #### Performance | Feature | Amazon Simple Storage Service (S3) | Cassandra | Redis Software | |---|---|---|---| | **Query Optimization** | Not enough data | Not enough data | Not enough data | #### Security | Feature | Amazon Simple Storage Service (S3) | Cassandra | Redis Software | |---|---|---|---| | **Role-Based Authorization** | Not enough data | Not enough data | Not enough data | | **Authentication** | Not enough data | Not enough data | Not enough data | | **Audit Logs** | Not enough data | Not enough data | Not enough data | | **Encryption** | Not enough data | Not enough data | 8.7 (5 reviews) | #### Support | Feature | Amazon Simple Storage Service (S3) | Cassandra | Redis Software | |---|---|---|---| | **Multi-Model** | Not enough data | Not enough data | Not enough data | | **Operating Systems** | Not enough data | Not enough data | 8.8 (7 reviews) | | **BI Connectors** | Not enough data | Not enough data | Not enough data | ### Graph Databases | Product | Score | Reviews | |---|---|---| | **Amazon Simple Storage Service (S3)** | N/A | N/A | | **Cassandra** | N/A | N/A | | **Redis Software** | N/A | N/A | #### Data Management | Feature | Amazon Simple Storage Service (S3) | Cassandra | Redis Software | |---|---|---|---| | **Data Model** | Not enough data | Not enough data | Not enough data | | **Data Types** | Not enough data | Not enough data | Not enough data | | **Built - In Search** | Not enough data | Not enough data | Not enough data | | **Event Triggers** | Not enough data | Not enough data | Not enough data | | **Query Language** | Not enough data | Not enough data | Not enough data | #### Availability | Feature | Amazon Simple Storage Service (S3) | Cassandra | Redis Software | |---|---|---|---| | **Auto Sharding** | Not enough data | Not enough data | Not enough data | | **Auto Recovery** | Not enough data | Not enough data | Not enough data | #### Performance | Feature | Amazon Simple Storage Service (S3) | Cassandra | Redis Software | |---|---|---|---| | **Query Optimization** | Not enough data | Not enough data | Not enough data | #### Security | Feature | Amazon Simple Storage Service (S3) | Cassandra | Redis Software | |---|---|---|---| | **Role-Based Authorization** | Not enough data | Not enough data | Not enough data | | **Authentication** | Not enough data | Not enough data | Not enough data | | **Audit Logs** | Not enough data | Not enough data | Not enough data | | **Encryption** | Not enough data | Not enough data | Not enough data | #### Support | Feature | Amazon Simple Storage Service (S3) | Cassandra | Redis Software | |---|---|---|---| | **Multi-Model** | Not enough data | Not enough data | Not enough data | | **BI Connectors** | Not enough data | Not enough data | Not enough data | | **Operating Systems** | Not enough data | Not enough data | Not enough data | ### Wide Column Database | Product | Score | Reviews | |---|---|---| | **Amazon Simple Storage Service (S3)** | N/A | N/A | | **Cassandra** | N/A | N/A | | **Redis Software** | N/A | N/A | #### Storage | Feature | Amazon Simple Storage Service (S3) | Cassandra | Redis Software | |---|---|---|---| | **Data Storage Method** | Not enough data | Not enough data | Not enough data | #### Scalability | Feature | Amazon Simple Storage Service (S3) | Cassandra | Redis Software | |---|---|---|---| | **Database Scalability** | Not enough data | Not enough data | Not enough data | | **Auto Sharding** | Not enough data | Not enough data | Not enough data | #### Security | Feature | Amazon Simple Storage Service (S3) | Cassandra | Redis Software | |---|---|---|---| | **Order Preserving Encryption** | Not enough data | Not enough data | Not enough data | #### Support | Feature | Amazon Simple Storage Service (S3) | Cassandra | Redis Software | |---|---|---|---| | **Data Types Support** | Not enough data | Not enough data | Not enough data | | **Different Operating Systems** | Not enough data | Not enough data | Not enough data | | **Multi model Database Support** | Not enough data | Not enough data | Not enough data | #### Agentic AI - Wide Column Database | Feature | Amazon Simple Storage Service (S3) | Cassandra | Redis Software | |---|---|---|---| | **Decision Making** | Not enough data | Not enough data | Not enough data | ### Object Storage Solutions | Product | Score | Reviews | |---|---|---| | **Amazon Simple Storage Service (S3)** | 9.2/10 | 65 | | **Cassandra** | N/A | N/A | | **Redis Software** | N/A | N/A | #### Functionality | Feature | Amazon Simple Storage Service (S3) | Cassandra | Redis Software | |---|---|---|---| | **Versioning** | 9.1 (60 reviews) | Not enough data | Not enough data | | **Scalability** | 9.6 (58 reviews) | Not enough data | Not enough data | | **Speed of access** | 9.3 (57 reviews) | Not enough data | Not enough data | #### Reliability | Feature | Amazon Simple Storage Service (S3) | Cassandra | Redis Software | |---|---|---|---| | **Redundancy** | 9.2 (53 reviews) | Not enough data | Not enough data | | **Availability** | 9.7 (58 reviews) | Not enough data | Not enough data | #### Security | Feature | Amazon Simple Storage Service (S3) | Cassandra | Redis Software | |---|---|---|---| | **Encryption** | 9.3 (54 reviews) | Not enough data | Not enough data | | **Auditing** | 8.6 (52 reviews) | Not enough data | Not enough data | | **Access control** | 8.8 (58 reviews) | Not enough data | Not enough data | #### Compatibility | Feature | Amazon Simple Storage Service (S3) | Cassandra | Redis Software | |---|---|---|---| | **Infrastructure compatibility** | 9.2 (52 reviews) | Not enough data | Not enough data | | **Interoperability** | 9.1 (50 reviews) | Not enough data | Not enough data | ### AI Search & Retrieval Infrastructure Platforms | Product | Score | Reviews | |---|---|---| | **Amazon Simple Storage Service (S3)** | N/A | N/A | | **Cassandra** | N/A | N/A | | **Redis Software** | N/A | N/A | #### Retrieval intelligence - AI Search & Retrieval Infrastructure Platforms | Feature | Amazon Simple Storage Service (S3) | Cassandra | Redis Software | |---|---|---|---| | **Advanced relevance tuning** | Not enough data | Not enough data | Not enough data | | **Query understanding & expansion** | Not enough data | Not enough data | Not enough data | | **Multistage retrieval & re-ranking** | Not enough data | Not enough data | Not enough data | | **Context-aware & personalized search** | Not enough data | Not enough data | Not enough data | #### Embedding & model management - AI Search & Retrieval Infrastructure Platforms | Feature | Amazon Simple Storage Service (S3) | Cassandra | Redis Software | |---|---|---|---| | **Embedding versioning & lifecycle management** | Not enough data | Not enough data | Not enough data | | **Multimodal search support** | Not enough data | Not enough data | Not enough data | | **Pluggable embedding & LLM providers** | Not enough data | Not enough data | Not enough data | #### LLM retrieval & RAG optimization - AI Search & Retrieval Infrastructure Platforms | Feature | Amazon Simple Storage Service (S3) | Cassandra | Redis Software | |---|---|---|---| | **Retrieval pipeline orchestration** | Not enough data | Not enough data | Not enough data | | **LLM-aware retrieval optimization** | Not enough data | Not enough data | Not enough data | | **Hybrid retrieval strategy optimization** | Not enough data | Not enough data | Not enough data | #### Data Enrichment & Index Intelligence - AI Search & Retrieval Infrastructure Platforms | Feature | Amazon Simple Storage Service (S3) | Cassandra | Redis Software | |---|---|---|---| | **Incremental & streaming index updates** | Not enough data | Not enough data | Not enough data | | **Built-in data enrichment** | Not enough data | Not enough data | Not enough data | #### Security & governance - AI Search & Retrieval Infrastructure Platforms | Feature | Amazon Simple Storage Service (S3) | Cassandra | Redis Software | |---|---|---|---| | **Fine-grained access controls** | Not enough data | Not enough data | Not enough data | | **Data residency & retention policies** | Not enough data | Not enough data | Not enough data | | **Audit logs & retrieval traceability** | Not enough data | Not enough data | Not enough data | #### Operations, observability & reliability - AI Search & Retrieval Infrastructure Platforms | Feature | Amazon Simple Storage Service (S3) | Cassandra | Redis Software | |---|---|---|---| | **Search analytics & relevance debugging** | Not enough data | Not enough data | Not enough data | | **High availability & disaster recovery** | Not enough data | Not enough data | Not enough data | ### NoSQL Databases | Product | Score | Reviews | |---|---|---| | **Amazon Simple Storage Service (S3)** | N/A | N/A | | **Cassandra** | N/A | N/A | | **Redis Software** | N/A | N/A | #### Database Features | Feature | Amazon Simple Storage Service (S3) | Cassandra | Redis Software | |---|---|---|---| | **Storage** | Not enough data | Not enough data | Not enough data | | **Availability** | Not enough data | Not enough data | Not enough data | | **Stability** | Not enough data | Not enough data | Not enough data | | **Scalability** | Not enough data | Not enough data | Not enough data | | **Security** | Not enough data | Not enough data | Not enough data | | **Data Manipulation** | Not enough data | Not enough data | Not enough data | | **Query Language** | Not enough data | Not enough data | Not enough data | --- ## Categories **Unique to Amazon Simple Storage Service (S3) (1):** [Object Storage Solutions](https://www.g2.com/categories/object-storage-solutions) **Unique to Cassandra (2):** [Wide Column Database Software](https://www.g2.com/categories/wide-column-database), [Key Value Databases](https://www.g2.com/categories/key-value-databases) **Unique to Redis Software (4):** [Key Value Databases](https://www.g2.com/categories/key-value-databases), [Document Databases](https://www.g2.com/categories/document-databases), [Graph Databases](https://www.g2.com/categories/graph-databases), [ AI Search & Retrieval Infrastructure Platforms Software](https://www.g2.com/categories/ai-search-retrieval-infrastructure-platforms) --- ## Reviewer Demographics ### By Company Size | Segment | Amazon Simple Storage Service (S3) | Cassandra | Redis Software | |---|---|---|---| | **Small-Business** | 29.3% | 18.2% | 55.0% | | **Mid-Market** | 31.4% | 33.3% | 25.6% | | **Enterprise** | 39.3% | 48.5% | 19.4% | ### By Industry #### Amazon Simple Storage Service (S3) - **Information Technology and Services:** 19.7% - **Computer Software:** 17.8% - **Financial Services:** 6.7% - **Internet:** 4.2% - **Marketing and Advertising:** 3.1% - **Insurance:** 2.5% - **Education Management:** 2.5% - **Banking:** 2.0% - **Hospital & Health Care:** 2.0% - **Telecommunications:** 2.0% - **Other:** 37.5% #### Cassandra - **Information Technology and Services:** 30.3% - **Internet:** 18.2% - **Computer Software:** 12.1% - **Retail:** 9.1% - **Computer & Network Security:** 6.1% - **Telecommunications:** 3.0% - **Research:** 3.0% - **Political Organization:** 3.0% - **Marketing and Advertising:** 3.0% - **Higher Education:** 3.0% - **Other:** 9.1% #### Redis Software - **Computer Software:** 28.7% - **Information Technology and Services:** 20.2% - **Internet:** 12.4% - **Computer Games:** 3.9% - **Telecommunications:** 3.1% - **Higher Education:** 3.1% - **Computer & Network Security:** 3.1% - **Gambling & Casinos:** 2.3% - **Financial Services:** 2.3% - **Hospital & Health Care:** 2.3% - **Other:** 18.6% --- ## Alternatives ### Alternatives to Amazon Simple Storage Service (S3) - [Google Cloud Storage](https://www.g2.com/products/google-cloud-storage/reviews) — 4.6/5 stars (599 reviews) - [Akamai Cloud Computing](https://www.g2.com/products/akamai-cloud-computing/reviews) — 4.6/5 stars (406 reviews) - [Azure Blob Storage](https://www.g2.com/products/azure-blob-storage/reviews) — 4.6/5 stars (109 reviews) - [DigitalOcean Spaces](https://www.g2.com/products/digitalocean-spaces/reviews) — 4.4/5 stars (45 reviews) - [MinIO AIStor](https://www.g2.com/products/minio-aistor/reviews) — 4.3/5 stars (17 reviews) - [zStorage](https://www.g2.com/products/zstorage-2025-10-01/reviews) — 4.3/5 stars (26 reviews) - [Cloudian HyperStore](https://www.g2.com/products/cloudian-hyperstore/reviews) — 4.7/5 stars (13 reviews) - [Wasabi Object Storage](https://www.g2.com/products/wasabi-object-storage/reviews) — 4.4/5 stars (65 reviews) - [IBM Cloud Object Storage](https://www.g2.com/products/ibm-cloud-object-storage/reviews) — 3.9/5 stars (28 reviews) - [IDrive Online and SaaS Backup, Object Storage e2](https://www.g2.com/products/idrive-online-and-saas-backup-object-storage-e2/reviews) — 4.4/5 stars (1924 reviews) ### Alternatives to Cassandra - [ScyllaDB](https://www.g2.com/products/scylladb/reviews) — 4.5/5 stars (427 reviews) - [Amazon DynamoDB](https://www.g2.com/products/amazon-web-services-aws-amazon-dynamodb/reviews) — 4.4/5 stars (530 reviews) - [Arango](https://www.g2.com/products/arango/reviews) — 4.6/5 stars (115 reviews) - [Azure Cosmos DB](https://www.g2.com/products/azure-cosmos-db/reviews) — 4.2/5 stars (68 reviews) - [Couchbase](https://www.g2.com/products/couchbase/reviews) — 4.3/5 stars (150 reviews) - [OrientDB](https://www.g2.com/products/orientdb/reviews) — 3.9/5 stars (60 reviews) - [Aerospike](https://www.g2.com/products/aerospike/reviews) — 4.4/5 stars (83 reviews) - [Azure Table Storage](https://www.g2.com/products/azure-table-storage/reviews) — 4.3/5 stars (16 reviews) - [Cloudera Data Platform](https://www.g2.com/products/cloudera-cloudera-data-platform/reviews) — 4.1/5 stars (136 reviews) - [Amazon ElastiCache](https://www.g2.com/products/amazon-elasticache/reviews) — 4.5/5 stars (87 reviews) ### Alternatives to Redis Software - [Arango](https://www.g2.com/products/arango/reviews) — 4.6/5 stars (115 reviews) - [Aerospike](https://www.g2.com/products/aerospike/reviews) — 4.4/5 stars (83 reviews) - [Azure Cosmos DB](https://www.g2.com/products/azure-cosmos-db/reviews) — 4.2/5 stars (68 reviews) - [Amazon DynamoDB](https://www.g2.com/products/amazon-web-services-aws-amazon-dynamodb/reviews) — 4.4/5 stars (530 reviews) - [Couchbase](https://www.g2.com/products/couchbase/reviews) — 4.3/5 stars (150 reviews) - [MongoDB](https://www.g2.com/products/mongodb/reviews) — 4.5/5 stars (554 reviews) - [ScyllaDB](https://www.g2.com/products/scylladb/reviews) — 4.5/5 stars (427 reviews) - [MongoDB Atlas](https://www.g2.com/products/mongodb-atlas/reviews) — 4.5/5 stars (370 reviews) - [Algolia](https://www.g2.com/products/algolia/reviews) — 4.5/5 stars (451 reviews) - [Neo4j Graph Database](https://www.g2.com/products/neo4j-graph-database/reviews) — 4.5/5 stars (133 reviews) --- ## Top Discussions ### Amazon Simple Storage Service (S3) - Title: [What type of storage is Amazon s3 used for?](https://www.g2.com/discussions/what-type-of-storage-is-amazon-s3-used-for) — 2 comments, 1 upvote > **Top comment:** "S3 is a object type and highly scalable storage service. We can access the s3 content from anywhere and provides the high availability and high performance." - Title: [How are other S3 users solving business problems?](https://www.g2.com/discussions/how-are-other-s3-users-solving-business-problems) — 2 comments, 1 upvote > **Top comment:** "The price is quite expensive " - Title: [Cost plans](https://www.g2.com/discussions/cost-plans) — 1 comment, 1 upvote > **Top comment:** "https://aws.amazon.com/s3/pricing/" ### Cassandra No discussions available for this product. ### Redis Software - Title: [What is Redis used for?](https://www.g2.com/discussions/what-is-redis-used-for) — 1 comment > **Top comment:** "Distributed cache" - Title: [Is there any way to store JSON by not converting into string](https://www.g2.com/discussions/is-there-any-way-to-store-json-by-not-converting-into-string) — 1 comment, 1 upvote > **Top comment:** "G2 is not honest. I wrote 4 detailed reviews because I should win a $10 Amazon gift card for each review. According to G2 dashboard, my reviews reached..." --- **Source:** [G2.com](https://www.g2.com) | [Comparison Page](https://www.g2.com/compare/amazon-simple-storage-service-s3-vs-cassandra-vs-redis-software)