Convex vs Courier

Convex

Courier

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.

Courier · 13 features

• Chat — Slack, Microsoft Teams, Discord, Mattermost.
• Email — SendGrid, Postmark, Mailgun, AWS SES, Resend, SMTP.
• Inbox (In-App) — React/JS drop-in in-app inbox component.
• Lists — Segment recipients for bulk notification sends.
• Logs + Analytics — Per-message delivery timeline + engagement.
• Multi-channel Routing — Provider failover + preferred channel per user.
• Notification Designer — Visual editor for templates across channels.
• Preferences — Per-user notification preferences hub.
• Push — APNs, FCM, Expo, OneSignal.
• Send API — POST /send with template + recipients + data.
• SMS — Twilio, MessageBird, Vonage, Plivo, Telnyx.
• Templates + Versioning — Template brands, variants, localization, version history.
• Webhooks — Delivery + engagement event webhooks.