SingleStore Helios vs VoltDB
SingleStore Helios
singlestore.comVoltDB
voltactivedata.comSide by side
| Figure | SingleStore Helios | VoltDB |
|---|---|---|
| Price from | $0.99/mo | Free |
| Free plan | Yes | Yes |
| Free trial | Yes | Yes |
| Open source | — | Yes |
| Web | Yes | Yes |
| Windows | Yes | — |
| macOS | Yes | Yes |
| Linux | Yes | Yes |
| API | Yes | Yes |
| Self-hosted | Yes | Yes |
| Plans published | 6 | 4 |
| Spec score · Distributed SQL Databases | 8.9 (#5) | 8.3 (#11) |
| Spec score · In-Memory Databases | 8.8 (#5) | 8.2 (#8) |
| Company headquarters | The headquarters is listed at 388 Market Street, Suite 860, San Francisco, California 94111. | LinkedIn lists headquarters in Burlington, Massachusetts, with company size of 11–50 employees. |
| Founded | 2011 | 2009 |
| Funding | Crunchbase lists 36 investors, including Prosperity7 Ventures and Goldman Sachs, and identifies a Series F round. | VoltDB announced a $10 million Series C funding round on October 23, 2019. |
| Headquarters | San Francisco, California, United States | Burlington, Massachusetts, United States |
| Integrations | Listed integrations include AWS Glue, Apache Beam, Apache Flink, Apache Spark, Azure Data Factory, Azure Event Hubs, Confluent Kafka, Fivetran, Informatica, Qlik, Tableau Prep, dbt, Datadog, New Relic and Terraform. | Documented integrations include Kafka, Kinesis, HDFS, JDBC/ODBC, Elasticsearch and RabbitMQ through import and export capabilities. |
| Rating on G2 | 4.5 out of 5 from 118 reviews. | 4.3 out of 5 from 6 reviews |
| Rating on Gartner Peer Insights | 4.4 out of 5 from 0 reviews shown on the currently rendered page. | 4.9 out of 5 from 9 ratings |
| Rating on TrustRadius | 8.2 out of 10 from 120 reviews and ratings. | 9 out of 10 from 1 review |
| Self-hosting | SingleStore can be deployed as a self-managed production environment or as a local Docker Dev Image. | VoltDB is distributed as installable tar archives and can be built from source on 64-bit Linux or macOS development systems. |
| Support | Paid Helios subscriptions include Standard support, with Silver and Platinum tiers offering faster response targets and expanded coverage. | Production support operates 8:00 am–6:00 pm Eastern Time, with 24×7 telephone coverage for severity-one production incidents. |
| What it does | SingleStore Helios is a managed distributed SQL database combining transactional, analytical, JSON, full-text, vector, time-series and geospatial workloads. | VoltDB is an in-memory, distributed relational database and real-time decisioning platform for high-throughput, low-latency transactional workloads. |
Plans
SingleStore Helios
- SharedFree
- Standard$0.99 a month
- Enterprise$1.49 a month
- StandardPriced on request
- EnterprisePriced on request
- BYOC StandardPriced on request
VoltDB
- Developer EditionFree
- Stream to Decision TrialFree
- Guided EngagementPriced on request
- Guided EngagementPriced on request
In their own words
SingleStore Helios
SingleStore Helios is a cloud database service available on AWS, Google Cloud, and Microsoft Azure. It handles transactional and analytical workloads in one database, with storage and compute scaled independently. Its data capabilities include relational records, JSON/BSON documents, vector and full-text search, time-series, geospatial, and key-value data. SingleStore Pipelines can ingest from sources such as Kafka, Amazon S3, and HDFS. For AI workloads, the service includes Jupyter notebooks, data integration services, and a compute service. Listed integrations include Datadog, Terraform, Apache Spark, AWS Glue, Azure Data Factory, dbt, and Fivetran. Helios is available through web and API platforms. The free Shared plan provides one workspace for evaluation, development, and non-production testing, with self-support. Standard is $0.99 a month for managed production workloads, with read replicas, database branching, 30-day monitoring, and support. Enterprise is $1.49 a month and adds online point-in-time recovery, Smart Disaster Recovery, audit logging, and customer-managed encryption keys. The listed availability commitments vary by configuration, reaching 99.99% across two availability zones on paid plans.
VoltDB
VoltDB is a distributed, in-memory database and real-time decisioning layer for data processing, stream ingestion, business logic, and AI integration. Its database partitions data and stored procedures so queries can run in parallel while maintaining ACID consistency. Volt Active Data says Volt is built to move from ingest to action in under 10 milliseconds. Clusters scale by adding nodes, with partitioning automated from the schema. Volt connects directly to Kafka or CDC streams and can expose decisions through SQL, REST, or Kafka topics. It supports on-premises, cloud Kubernetes or VM-based, and hybrid deployments. Production databases support Debian 12.11 or later, RHEL 8.8 or later, Rocky Linux 8.8 or later, and Ubuntu 20.04, 22.04, or 24.04; macOS 13 or later is supported for development. Enterprise Edition provides command logging, locally replicated partitions, and wide-area database replication. Authentication, role-based authorization, and TLS/SSL or Kerberos communications are available, but security is disabled by default. The free Developer Edition is not intended for production workloads. A free 30-day trial is listed for Confluent users; production pricing is on request.