kynetradb
One Rust binary: BM25 search + vector + KV + document + auth + files + realtime + agentic admin.
vs
Firebase
Google's managed backend: Firestore NoSQL, auth, cloud storage, realtime, Cloud Functions.
Feature comparison
| Dimension | kynetradb | Firebase |
|---|---|---|
| Full-text search | BM25 (parallel, 1.07 ms @ 100k) | None |
| Vector search | Brute-force cosine (2.21 ms @ 100k, no HNSW yet) | None |
| Auth | Built-in — email+password, refresh tokens, OTP/magic-link, OAuth (Google/GitHub), anonymous, /auth/v1 | Built-in |
| Row-Level Security | Built-in — auth.uid() DSL, per-row enforcement, SELECT/INSERT/UPDATE/DELETE | No |
| File storage | Built-in — buckets, public/private, signed URLs, object RLS, local + S3-compatible | Built-in |
| Realtime | WebSocket — postgres_changes (INSERT/UPDATE/DELETE), presence, broadcast; RLS-filtered | WebSocket |
| Edge Functions | Built-in — WASM /functions/v1, sandboxed, 10s timeout, SDK .invoke() | Yes |
| TypeScript SDK | @kynetra/client — supabase-js-compatible, from().select().eq() | Yes |
| KV lookups | Yes (point lookup by ID) | No |
| Document filter | Yes (JSON predicates) | Yes |
| LLM runtime | Yes (Anthropic + OpenAI + Ollama) | No |
| Outbound DB sync | Yes (12 sinks: Postgres, DynamoDB, BQ, Firestore, CF, Mongo, Redis, Pinecone) | No |
| Self-host | Yes (single binary) | No (managed only) |
| Single binary | Yes | No |
| License | Apache-2.0 | SaaS-only |
| Deploy targets | 18 (1-click) | 0 (1-click) |
| Free tier | Yes — Apache-2.0, self-host free | yes — Spark plan with limited Firestore + 5 GB storage |
When to pick Firebase
Deepest Google Cloud integration and the most battle-tested mobile auth SDK. The vendor lock-in is real; plan for it.
- You need deep Google Cloud integration and the most battle-tested mobile auth SDK.
- Your team is already invested in Firebase's SDK and ecosystem.
When to pick kynetradb
- You want Supabase's developer experience — the
@kynetra/clientTypeScript SDK, PostgREST REST API, GoTrue-shaped auth, RLS, realtime channels — running as a single binary on infra you own. - You need BM25 full-text + vector similarity search built in with no separate service and no CDC pipeline.
- You want to deploy to 18 targets (including 5 Indian providers) from one Dockerfile.
- You need outbound sync to 12 databases (Postgres, DynamoDB, BigQuery, Firestore, Cloudflare, MongoDB, Redis, Pinecone) with zero extra code.
- You want an agentic admin with 10 typed LLM-driven actions and a persisted audit trail.
- You want Apache-2.0 with a self-host path that doesn't require an ops team.
- You need to run on your own infra — Firebase is managed-only.
- You want a single binary with no runtime dependencies — no container fleet to operate.
Create a record — both APIs side by side
Insert a product record. These are documentation-accurate shapes, not runnable end-to-end examples.
kynetradb
// kynetradb — @kynetra/client TypeScript SDK
import { createClient } from '@kynetra/client'
const kdb = createClient('https://your.host', PUBLISHABLE_KEY)
const { data, error } = await kdb
.from('products')
.insert({ title: 'Aurora Espresso', vendor: 'Aurora', price: 2200 })
.select() Firebase
// Firebase — JavaScript SDK
import { collection, addDoc } from 'firebase/firestore';
const docRef = await addDoc(collection(db, 'products'), {
title: 'Aurora Espresso',
vendor: 'Aurora',
price: 2200,
});