Describe your app.Launch it today. Grow it as you go.
Meet Seth, Power Seth and Max Seth
Seth is the agent that builds your app. You choose how much of it gets built.
Builds what you ask for.
- Everything you name gets built, and works.
- Right for small apps and one change at a time.
- On every plan, the free one included.
Point at it, change it.
Click a word in the preview and rewrite it, or click an element to change how it looks. Changes you make by hand cost no credits.
Publish in one click.
Your app goes live on a web address of its own. Add your own domain on a paid plan, or take it to the app stores.
Run it from one place.
Visitors, data, accounts, emails, payments and your domain, all in Manage, beside Preview and Code.
Start small.Grow it as you go.
Setherion builds the frontend and the backend together. Every app that saves something or signs people in gets a backend on Setherion, with nothing to set up.
How the backend works- Contact form
- Sign-in
- Database
- Payments
- Emails
- AI assistants
Every app runs on the Setherion platform.
A backend, your integrations, your code and security, ready for every app.
Cloud backend
A backend, already there.
Cloud backend
A backend for every app that saves something or signs people in.
- Records you can browse, edit and export.
- Accounts for your visitors, and their letters.
- Logs and usage, to see what it did.
Integrations
Connect what you already use.
Integrations
More than 60 connectors, plus your own API or an MCP server.
- Connect a service once, use it in your apps.
- Switch off what each connection may do.
- No connector? Keep its key in Secrets.
Your code
Yours to take with you.
Your code
Every app is real React code, and it is yours to take.
- Every change kept as a named version.
- A ZIP, GitHub or GitLab on Pro and Business.
- Your data as SQL for your own Supabase, on every plan.
Security
Security you can check.
Security
Checks on your app, and on your account.
- Quick and deep scans that use credits, with a fix for each issue.
- A collection anyone can read closes in one click.
- Two-step sign-in with recovery codes.
More than a first draft.
Checked before you see it, ready for the app stores, and open to AI assistants.
Checked before you see it.
Every build and every change is opened out of sight first. One that crashes is repaired at no cost to you.
How a build runsOpen to AI assistants.
The people who use your app can connect it to ChatGPT, Claude or another assistant, and read or change their own data by asking. They sign in first, so an assistant can never do more than they could.
Agent integrationsGames, 2D and 3D.
Games that play in the browser and on phones: 3D with real models and physics, 2D with characters drawn for you. Most AI app builders make games from a prompt alone; Setherion adds a game panel, one of the most complete among AI app builders. A 2D game plays from the first build, so you judge it before you spend on art.
Build a gameReady for the app stores.
Any app can become one people install from Google Play and the App Store. Easy needs no code and is on every plan. Native, on Pro and up, is for developers and adds ads and in-app purchases. The stores charge for their own accounts.
Publish to app storesBring an app from elsewhere.
Rebuild an app you already have, from GitHub, a ZIP file or another builder, and change it here by asking. A Figma frame, a Canva design or a spreadsheet comes in too. Your first import is free.
Import an appYou see what it cost.
Each message in the chat shows what it cost in its menu. Extra credits never expire.
How credits work
Connect to more than 60 tools you already use.
Stripe
Notion
Shopify
Slack
Google Sheets
HubSpot
PayPal
Figma
Google Calendar
WhatsApp
Airtable
Salesforce
Microsoft 365
Telegram
WooCommerce
Mailchimp
Google Maps
Twilio
Frequently asked questions
Short answers, and the page to read when you want more.
Do I need to know how to code?
No. You describe what you want in your own words, in any language, and Setherion builds a complete app: pages and design, a database, sign-in for its users and connections to the services you use. You change it by writing what you want different. If you do code, every app is real React, and on a paid plan you can edit it by hand.
QuickstartCan I try it for free?
Yes. The Free plan needs no card and stays free. Each month it gives you credits for a whole new app and some changes to it, and you can publish it with a database, a login and email. A free app carries a small Built with Setherion label.
See the plansWhat can I build?
Websites, landing pages, web apps, mobile apps, SaaS products, online stores and games, 2D and 3D. Say which in your request, or pick one of the kinds above the box on the dashboard.
What Setherion buildsWho owns what I build, and can I take it with me?
You do. Your instructions, your content and the code Setherion writes for you are yours, and we claim no ownership of them. Every app is real React code. On Pro and Business you can send it to GitHub or GitLab, or download it as a ZIP, and on every plan its data exports as SQL ready for a database you own.
Export your codeWhere does my app live, and can I use my own domain?
Publishing takes seconds and is free on every plan. Your app goes online at an address of its own on setherion.app. On a paid plan you can put it on a domain of your own, and the domain stays yours whatever happens.
Publish to the webWhat if a change breaks my app?
Every build and every change is opened out of sight first, and one that crashes is repaired at no cost to you. Every change is also kept as a version, named by what it did, so you can go back to the one before it.
HistoryHow does pricing work?
By credits, not by the number of apps or people. Building and changing an app spends credits. Publishing, hosting and keeping your apps online do not. Each message in the chat shows what it cost in its menu.
See the plansBuild your app yourself right now.
Describe what you want. Setherion builds it, ready for the web and the app stores.
Get building for free