DeepSpace vs. Supabase

DeepSpace is a full-stack SDK and hosting platform: one npm package gives a React + TypeScript app auth, a real-time database, presence, collaborative editing, file storage, and Stripe payments, and one command — npx deepspace deploy — ships the whole app to <name>.app.space. DeepSpace is laying the foundation for rebuilding the Internet in an AI-native way.

DeepSpace is designed for AI coding agents. New projects install an agent skill, the CLI is scriptable with --json output, and the decisions agents get wrong — permission checks, identity verification, payment flows — are made once inside the SDK instead of regenerated per project.

Supabase is an open-source backend platform built on Postgres. Every project gets a dedicated Postgres database with auto-generated REST and GraphQL APIs, plus authentication, file storage, edge functions, and real-time subscriptions, with access controlled by Row Level Security (RLS) policies written in SQL.

As of July 2026, new Supabase projects run Postgres 17, and the platform also offers vector storage, cron, queues, and database branching. The core stack is open source and can be self-hosted with Docker.

The main difference is scope: DeepSpace builds, hosts, and deploys your entire app, while Supabase provides the backend and leaves the frontend to another platform. DeepSpace trades Supabase's raw SQL power and self-hosting for a single integrated path from idea to live URL.

Neither is a superset of the other. Supabase gives you a real Postgres database with everything that implies; DeepSpace gives you a shipped product with collaboration, payments, and hosting already wired.

Yes, when you are shipping a complete app. npx deepspace deploy builds the frontend, provisions the backend, and puts the app live at <name>.app.space in one step — auth, database, and payments need no additional accounts or keys.

Supabase does not host frontends: as of July 2026 its official guidance points to platforms like Vercel or Netlify, so a complete app means at least two services, two configurations, and two dashboards. If you only need a database behind an app you already host, that scope is exactly right and there is nothing extra to deploy.

DeepSpace ships application-level collaboration primitives; Supabase ships transport-level real-time channels. In DeepSpace, shared records sync to React hooks automatically, and presence, live cursors, conflict-free (CRDT-based) collaborative text, and shared whiteboards are prebuilt — a Google-Docs-style feature is wiring, not architecture.

Supabase Realtime provides Postgres Changes, Broadcast, and Presence — solid building blocks, but you assemble the collaboration behavior yourself. Its capacity is also plan-based: as of July 2026 the free tier allows 200 concurrent connections and 100 messages per second, and the Pro plan allows 500 connections unless you disable its spend cap. For a multiplayer app, check those numbers against your expected concurrency early.

Both platforms include authentication; they differ in how you express permissions. DeepSpace ships sign-in with Google, GitHub, and email/password, with sessions handled by the platform, and permissions are role-based rules — viewer, member, admin — declared next to each collection's schema and enforced server-side.

Supabase Auth is broader: around 20 OAuth providers, SAML SSO, MFA, and 50,000 free monthly active users as of July 2026. Its authorization model is Row Level Security — SQL policies evaluated per row. RLS is more expressive than DeepSpace's role rules, and it is also more to get right: policies are hand-written SQL, and Supabase itself ships tooling for testing them.

DeepSpace has payments built in; Supabase does not have a payments product. In DeepSpace you declare subscription plans or one-time products in code, they sync to Stripe on deploy, and prebuilt hooks and components handle checkout and entitlements, with refund and cancellation helpers in the server SDK.

With Supabase you integrate a payment processor yourself: webhook handlers in edge functions, entitlement tables, and the RLS policies that protect them are your code to write and maintain.

DeepSpace is built agent-first; Supabase is adding agent tooling to a developer-first platform. A DeepSpace project ships with an agent skill, the whole stack sits behind one login and one CLI, and security-critical behavior is enforced by the platform rather than left to generated code — so an agent can take an app from prompt to live URL without a human wiring services together.

Supabase is investing here too: as of mid-2026 it ships integrations for AI coding agents such as Claude Code and Cursor. An agent can drive either platform — with Supabase it still has to coordinate a separate frontend host and payment integration; with DeepSpace there is simply less to coordinate.

Both are free to start. DeepSpace is free to start building and deploying, and paid plans add more deployed apps and usage as you scale.

Supabase's free tier, as of July 2026, includes 2 active projects, a 500 MB database, and 50,000 monthly active users — generous, though free projects pause after one week of inactivity. The Pro plan starts at $25 per month with metered overages for disk, egress, file storage, and (since July 2026) log ingestion. Supabase publishes detailed per-unit prices, which makes costs inspectable; DeepSpace's pricing has fewer knobs to model.

Choose Supabase when your product is built around Postgres. If you need raw SQL — joins, constraints, extensions — an existing Postgres toolchain, self-hosting for compliance, or auth at the scale of tens of thousands of monthly active users, Supabase is the stronger fit as of July 2026. It is also the natural choice when your frontend already lives on Vercel or Netlify and you only want a backend behind it.

Choose DeepSpace when the product is the app itself — especially a real-time, collaborative, or agent-built one — and you want auth, sync, payments, and hosting decided and shipped in one step.