S2
No written verdict yet. Here is what commenters said.
5recommend
1warn against
Nov 3, 2025first mention
Sep 15, 2026latest mention
Why people recommend it
“One alternative worth looking at is S2”
“I used S2 to make https://wherewords.id/ It was very pleasant to work with”
Show 3 more
“which has the very nice property that parent cells do indeed always contain their children”
“S2 has this property https://s2geometry.io”
“Also checkout https://s2.dev/blog/kv-store”
Caveats and dissent
“the visual distortion of S2 was quite a no-go”
From the makers not counted in the ranking
“I also wrote about it here: https://s2.dev/blog/distributed-ai-agents”
“We wanted S2 to be one API”
“At s2.dev (a serverless datastore for real-time streaming data)”
works at s2.devon “Flow: Actor-based language for C++, used by Foundati…”
Threads where it came up
- Show HN: PicoMQ – Durable Streams over HTTP, on object storage 2 mentions
- HEALPix 2 mentions
- How we made geo joins 400× faster with H3 indexes 2 mentions
- Show HN: S2-lite, an open source Stream Store 2 mentions
- Jepsen: NATS 2.12.1 2 mentions
- Harder, Better, Faster, Stronger Version of Uber H3 in Rust 2 mentions
Also written as S2 Geometry, s2. Data: s2.json. Quotes are verbatim; the verdict and theme labels are written by a model from these comments, and every clause links to its sources.
All comments 15
“One alternative worth looking at is S2”
“But S2 is not open source”
“I started to compare PicoMQ to https://github.com/s2-streamstore/s2”
“I did a poc using s2.dev and val.town”
“I used S2 to make https://wherewords.id/ It was very pleasant to work with”
“Google's S2 geometry - https://s2geometry.io/”
“which has the very nice property that parent cells do indeed always contain their children”
“S2 has this property https://s2geometry.io”
“KV store in Rust, backed by a disaggregated, replicated journal”
“Also checkout https://s2.dev/blog/kv-store”
“s2.dev could make a lot of sense as a serverless option”
“The cloud offering is self-serve, no need to get on a call at all”
“unlimited streams with the durability of object storage”
“the visual distortion of S2 was quite a no-go”
“much simpler S2 system: http://s2geometry.io/”