KeyDB vs SingleStore Helios
| KeyDB | SingleStore Helios | |
|---|---|---|
| Free plan | No | Yes |
| Free trial | No | No |
| Paid from | — | $0.99/mo |
| Open source | No | No |
| Platforms | Linux, macOS, self-hosted | api, Web |
| Free plan | Yes | Yes |
| Deployment | self-hosted | — |
| Data persistence | Yes | — |
| High availability | Yes | Yes |
| SQL support | No | — |
| Vector search | No | — |
| Supported data models | strings, lists, sets, sorted sets, hashes, bitmaps, HyperLogLogs, streams | — |
Both are listed in Best In-Memory Databases. On Samsung Mobile US Press, SingleStore Helios scores higher on our published basis.