The short answer: there is no single best. For a non-coder who needs logins and a database, start with Lovable. For someone who can read code and wants control, Bolt.new. For a polished React interface, v0. For an internal tool with the backend hidden, Base44. For everything in one workspace, Replit. These are the seven tools our pricing index covers; the sections below sort them by job, then cost, then how easily you can leave, which are the three things that decide whether you regret the pick.
Pick by job
| Your job | Start with | Why | Read next |
|---|---|---|---|
| A customer-facing SaaS with logins, database and payments | Lovable | Backend handled (its Cloud, or your own Supabase); code in GitHub | Lovable review |
| An internal dashboard, CRM or portal | Base44 | Managed backend; cheaper per credit than Lovable on paper | Base44 vs Lovable |
| A prototype you will hand to a developer | Bolt.new | Real Node environment; GitHub and any host | Bolt.new alternatives |
| A landing page or UI-heavy front end | v0 | UI-first; Vercel deployment | v0 alternatives |
| An all-in-one workspace, comfortable with variable billing | Replit Agent | IDE, database and hosting together | Replit pricing |
| A content, directory or affiliate-style site | Atoms.dev | Credit tiers; includes SEO and analytics agents (per Atoms’ own description) | Atoms review |
| You are on a small budget | Any free plan first | See the free-tier limits | Best free AI app builder |
| A brochure site or portfolio, not an app | A website builder | Different category | Best AI website builder |
For the direct three-way comparison see Lovable vs Bolt vs v0.
What it costs to start
Entry paid plans from each vendor’s page, checked 28 to 29 September 2026 and recorded in the pricing index. The billing unit differs, so these are entry fees, not like-for-like costs.
| Tool | Free plan | Entry paid plan | Billing unit |
|---|---|---|---|
| Lovable | 5 daily credits, up to 30 a month | Pro $25 a month ($21 billed annually) | Credits |
| Bolt.new | 300K tokens a day, 1M a month | Pro $25 a month | Tokens |
| v0 | $5 of credits, 7 messages a day | Plus $30 per user | Dollar credits |
| Base44 | 25 message plus 100 integration credits | Starter $16 a month billed annually | Message and integration credits |
| Replit Agent | Free Mode within limits | Core $20 a month ($18 annually) | Dollar credits plus effort-based billing |
| Atoms.dev | 15 credits a day, 25 a month | Pro $20 a month for 100 credits | Credits |
| Softgen | Not confirmed | Starter $25 for 500 credits | Credits |
Softgen’s plan cards render client-side; the figures were read in a browser on 29 Sep 2026 and no annual price is stated. The gap between entry price and real cost is the reason to read building a SaaS with AI and the per-tool pages: Lovable, Base44 and Replit.
What happens when the money or credits stop
This is where builders differ most and the vendors say least. Lovable’s docs say apps on its built-in Cloud backend can pause at zero credits while the published pages keep serving. Base44’s docs say any action that needs integration credits (email, AI calls) fails with an error, and do not say whether the app itself stays up. Bolt and v0 stop generating. The nine-tool table is in what happens when AI builder credits run out.
How easily can you leave
Code leaves easily from all of them, through GitHub or a zip. The database and backend are the real lock-in. Lovable on your own Supabase and Bolt with GitHub give the most standard exits; Base44 needs the backend re-pointed; v0 is tied to Vercel for deployment. The cell-by-cell version is the lock-in and export matrix.
About these recommendations
Lovable publishes its own comparison guides, and a vendor guide reasonably favours its own product. This site is independent research: we read vendor pricing pages and docs, cite each number, and say what we could not verify. Three tools here have affiliate programmes, Atoms.dev, Base44 and Softgen; they are placed by the same criteria as the others, and a link costs you nothing extra. Our affiliate disclosure has the detail. We have not built the same app on every tool, so nothing here ranks output quality. You do not need separate hosting to publish (Replit bills deployments separately); a custom domain is optional.
Once you have chosen, the route from prototype to launch runs through connecting Supabase, Lovable authentication, Stripe billing and the production readiness checklist. Writing the code yourself instead? See best AI code editor.
Backend and payment services that pair with these builders are on the backend tools page: Supabase, Neon, Stripe and Hostinger.
Method
Researched from vendor pricing pages and documentation, checked 28 to 29 September 2026. No scores or ratings: the table criteria are job fit, listed price and exit route, each sourced. We have not tested output quality across tools. Re-checked every 30 days.
Common questions
What is the best AI app builder for beginners?
Lovable is the most guided for non-coders, with the backend handled. See Lovable getting started. Watch the credit balance once real users depend on the app.
What is the best free AI app builder?
Each free plan has a different limit: Lovable 5 daily credits, Bolt 300K tokens a day, v0 $5 a month, Base44 25 message credits a month. What you can finish on each is covered in our free-tier guide.
Do I need separate hosting or a custom domain?
No. You do not need to buy separate hosting to publish: each builder runs the app itself, though Replit bills deployments separately (data transfer and compute). A custom domain is optional and available on paid plans on several of them.