Convex vs Firebase: pricing, quotas & features (2025)

Convex

Firebase

Convex · 18 features

• Actions — Non-deterministic functions for external I/O (fetch, AI APIs, email). Cannot rea…
• Authentication — Convex Auth (built-in) or BYO provider (Clerk, Auth0, Kinde, WorkOS). ID tokens …
• Convex Agents — AI agent framework with durable memory, threads, tool use. Works with OpenAI / A…
• Convex Auth — First-party auth library: passwords, magic links, OAuth, phone — stored in your …
• Convex Components — Reusable backend modules (rate limiter, workflow, aggregate, action-retrier, etc…
• Cron Jobs — Recurring schedules defined in convex/crons.ts. UTC, cron-style patterns.
• Durable Workflows — Long-running multi-step workflows with retries and at-least-once guarantees.
• Exception Reporting — Auto-capture errors to Sentry, Axiom, Datadog.
• File Storage — Upload/download via storage API. Returns storage IDs referenced in documents.
• Full-Text Search — BM25 search index on table fields. withSearchIndex query helper.
• HTTP Actions — Expose public HTTP endpoints for webhooks, OAuth callbacks, third-party integrat…
• Log Streams — Stream function logs to Axiom, Datadog, Sentry. Pro+.
• Mutations — Transactional write functions. All reads + writes in one mutation are ACID; conf…
• Preview Deployments — Every Git branch gets its own isolated deployment. Integrates with Vercel/Netlif…
• Queries — Deterministic read-only TS functions. Automatically cached and re-run when under…
• Real-Time Subscriptions — useQuery auto-subscribes; server invalidates when data a query read changes. No …
• Scheduler — schedule.after / schedule.at — enqueue functions to run later. Durable, survives…
• Vector Search — Native vector index on tables. withIndex + filter fields. Up to 4096 dims.

Firebase · 20 features

• A/B Testing — Experiments on Remote Config params, FCM notifications, and Analytics events. Ba…
• App Check — Attestation service: only requests from authentic, untampered app instances reac…
• App Hosting — Managed hosting for modern web apps (Next.js, Angular, SvelteKit). Git-based dep…
• Cloud Firestore — Serverless NoSQL document database. Real-time sync, ACID transactions, offline p…
• Cloud Functions — Serverless functions (Node.js/Python). Trigger on HTTP, Firestore, RTDB, Auth, S…
• Cloud Storage — Object storage for user files. Built on GCS. Security rules + signed URLs. Resum…
• Crashlytics — Real-time crash reporting for iOS/Android/Unity/Flutter. Stack traces, breadcrum…
• Data Connect — GraphQL API backed by Cloud SQL for PostgreSQL. Type-safe SDK generation. Previe…
• Dynamic Links — Deep links that survive app install. NOTE: deprecated, shutdown Aug 2025 — migra…
• FCM Topics — Publish/subscribe messaging: devices subscribe to topic names; backend sends one…
• Firebase AI Logic — Client-side SDK to call Gemini models directly from mobile/web. Formerly "Vertex…
• Firebase Authentication — Drop-in auth: email/password, phone, anonymous, 10+ federated providers, custom …
• Firebase Cloud Messaging — Push notifications for iOS, Android, Web (APNs/FCM transports). Topics, device g…
• Firebase Extensions — Pre-packaged Cloud Functions + config: Stripe, Algolia search, image resize, tra…
• Firebase Hosting — Static + dynamic hosting with global CDN. Preview channels, atomic deploys, rewr…
• Genkit — Open-source AI app framework. Unified API for Gemini, OpenAI, Ollama; tools, RAG…
• Google Analytics for Firebase — Free unlimited event tracking with audience building. BigQuery export on Blaze. …
• Performance Monitoring — App startup, HTTP network, and custom traces. Integrates with Google Analytics e…
• Realtime Database — Low-latency JSON tree database with WebSocket sync. Best for high-frequency pres…
• Remote Config — Feature flags / parameterized config with conditional targeting (user property, …