| Is a Next.js frontend with users around the world, or needs a preview URL for every pull request | Vercel | Vercel serves from a global network and builds a preview for each pull request. Antideploy runs next start as one process in one region and has no preview deployments. |
| Must handle heavy or spiky traffic, or its users are mostly in the Americas or Europe | Vercel | Vercel scales automatically. Antideploy runs one instance per app, in Singapore. |
| Runs a Celery or Dramatiq worker | Vercel | Vercel runs these as queue-triggered functions. Antideploy runs only the web process today. |
| Runs a server (Express, Fastify, Koa, Hono, NestJS, FastAPI, Flask, Django) that keeps state in memory, or holds WebSocket or Socket.IO connections open for longer than 5 minutes | Antideploy | It runs as one process. Antideploy sets no time limit of its own on a connection, and an idle WebSocket stayed open 330 seconds in our test. |
| Stores user uploads and has no storage bucket of its own | Either | Vercel Blob is built in. Antideploy creates a private S3-compatible bucket for the app in one API call, which any S3 client can use. |
| Is a Streamlit or Gradio app | Antideploy | Antideploy detects both and starts them with the right command, including the flags Streamlit needs behind a proxy. Neither is on Vercel's list of zero-configuration backends. |
Uses Postgres through Prisma, Drizzle, pg, postgres, @vercel/postgres, psycopg, asyncpg or Django, and has no database yet | Antideploy | The database is created during the deploy, DATABASE_URL is set, and migrations run before the new version goes live. |
| Earns money (payments, ads, paid client work) and should stay on a free plan | Antideploy | Vercel Hobby is for non-commercial use only. Antideploy's terms have no such clause. |
| Needs a scheduled job more often than once a day, on a free plan | Antideploy | Antideploy runs scheduled jobs as often as every 5 minutes on every plan. Vercel Hobby allows once a day. |
| Accepts request bodies larger than 4.5 MB, such as file uploads to its own server | Antideploy | Vercel Functions reject payloads over 4.5 MB. Antideploy accepts request bodies up to 100 MB. |
| Is a static site | Either | Both host static sites for free. Antideploy never counts static sites against a plan's limits. |