Replit Agent builds and hosts apps from a conversation: the AI writes the code, provisions a PostgreSQL database, and deploys on Replit. Luna Park also builds with AI, but the result is visual logic you can read and edit without code, compiled to a Vue and Node.js application you host anywhere.
At a glance
Both build and run apps with AI. The main differences: what the AI produces, AI costs, and hosting.
| Luna Park | Replit Agent | |
|---|---|---|
| How you build | Visual editor, with an AI assistant | Conversation with an AI, code workspace |
| What the AI produces | Components, logic graphs, routes, tables | Code, in any language |
| Editing without AI | Visually No code | In the code |
| Backend | Built-in Routes, crons, PostgreSQL | Built-in Managed PostgreSQL (source) |
| Code export | Vue + Node.js source (Pro) | GitHub, zip (source) |
| Hosting | Anywhere Managed hosting in late 2026 | Replit (source) |
| Pricing | Free, or Pro at €25/month or €300 once. AI on your own key | Plans + usage-based AI credits (source) |
| Platforms | Web PWA Desktop Android iOS | Web Android iOS |
Example: a waitlist form
Visitors enter their name, email, and favorite ride, and get a ticket number.
Luna Park
- Ask Sidekick for the form, or build it yourself.
- The result is a graph: read the fields, call the route, show the ticket.
- Sidekick tests it by calling the route and clicking through the preview. Test data is rolled back.
Replit Agent
- Prompt: "add a waitlist form that saves to the database".
- Approve the plan. The agent provisions PostgreSQL and writes the form and an API route.
- Test in the preview, then publish on Replit.
Code export
Both give you the code. Replit exports the generated project; Luna Park compiles the visual project to Vue and Node.js, so you can keep working visually or take the code.
Other differences
- Understanding the app. With Replit Agent, fixing a bug means reading generated code or prompting again. In Luna Park, components, graphs, and routes are visual, and the app map shows how they connect.
- AI costs. Replit bills the agent by effort, from credits that also pay for hosting. Luna Park uses your own key, a local model, or your coding agent through MCP. Editing without AI is free.
- Structure. Luna Park projects keep a fixed file structure and types shared by frontend and backend, whatever the AI changes.
Which one to choose?
Luna Park
- You want to understand and fix your app yourself.
- You want to choose your AI.
- You want to host your app where you want.
Replit Agent
- You want hosting and the database set up for you today.
- You want any language or framework.
- You are comfortable maintaining the generated code.
Before switching
- Sidekick needs your own API key or a local model.
- Until managed hosting launches in late 2026, you host the backend.
Based on Replit as of October 2026. See replit.com for current features and prices.
