The best free AI app builders in 2026
The best free AI app builder for a full-stack app is BerryBell — its free tier includes a welcome grant of AI and hosting credits (no credit card) and still generates a real backend. Bolt's free plan includes hosting (with Bolt branding) and databases, and v0's includes $5 of monthly credits; Replit's free Starter plan includes daily Agent credits and one published app. Here's how the free plans compare.
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At a glance
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| BerryBell | Bolt | Replit (Agent) | v0 (Vercel) | Lovable | Base44 | |
|---|---|---|---|---|---|---|
| Build approach | BerryBell Multi-agent (planner + specialist agents) | Bolt In-browser AI IDE | Replit (Agent) Chat-first AI agent + cloud code editor | v0 (Vercel) AI agent (full-stack Next.js) | Lovable Chat-to-code agent | Base44 AI generation (managed platform) |
| Database | BerryBell Managed Postgres per project, on request (all plans) | Bolt Bolt Database (Postgres) on all plans | Replit (Agent) Built-in PostgreSQL on all plans | v0 (Vercel) One-click integrations (Neon, Supabase, Upstash, Vercel Blob) | Lovable Managed Postgres via Lovable Cloud (all plans) | Base44 Built-in managed database (all plans) |
| Sign-in for your app's users | BerryBell Built in on paid plans (in your own database) | Bolt Built in (email, Google) on all plans | Replit (Agent) Built in (Clerk or Replit Auth) on all plans | v0 (Vercel) Generated in your code (Better Auth by default) | Lovable Built in via Lovable Cloud (all plans) | Base44 Built in on all plans; app SSO on Business |
| Code ownership | BerryBell Editable in-browser on all plans; GitHub sync + download on paid | Bolt Full (download or GitHub) | Replit (Agent) Full (ZIP download or GitHub sync) | v0 (Vercel) Full source; GitHub sync on every plan, or download | Lovable Git sync on all plans; ZIP download on paid | Base44 GitHub 2-way sync + ZIP download (Builder+) |
| Hosting | BerryBell 1-click, with SSL, on all plans (berrybell.app) | Bolt Built-in (bolt.host) on all plans | Replit (Agent) Built-in publishing on all plans | v0 (Vercel) One-click to Vercel, on your Vercel plan; or host elsewhere | Lovable Built-in (lovable.app) on all plans | Base44 Built-in (base44.app) on all plans |
| Custom domain | BerryBell Paid plans (Pro, from $25/mo) | Bolt Pro ($25/mo) and up | Replit (Agent) Paid plans (not on the free Starter plan) | v0 (Vercel) Via Vercel; connect one or buy it from the v0 chat | Lovable Paid plans (Pro, from $25/mo) | Base44 Starter ($20/mo) and up |
| Team features | BerryBell Business: owner, admin, editor and viewer roles; SSO (OIDC or SAML) | Bolt Teams plan ($30/member): roles; SSO on Enterprise | Replit (Agent) Core: up to 5 builders; Pro: 15; SSO on Enterprise | v0 (Vercel) Per-user Plus plan for teams; roles and SAML SSO on Enterprise | Lovable Roles on Pro and up; SSO on Business | Base44 Unlimited members on all plans; SSO on Business |
| Security scanning | BerryBell Dependency + code scans on all plans; deep scan on paid | Bolt Code + database audit on Pro/Teams; DB check on all | Replit (Agent) Free dependency + pre-publish scans; Agent code scan paid | v0 (Vercel) Automatic checks on generated code; flags vulnerable React/Next.js | Lovable Free scan on every publish, plus on-demand deep scan | Base44 Security scan on all plans; code scan on Builder+ |
| Free tier | BerryBell 20 credits + $5 hosting to start, then 5 credits a day; badge | Bolt 300K tokens a day (1M/mo); public sites with badge | Replit (Agent) Free Mode (daily cap); 1 published app for 30 days | v0 (Vercel) $5 of one-time credits for new users; 7 messages a day | Lovable 5 credits a day (up to 30/mo) + 20 Cloud credits/mo | Base44 25 message credits a month (5 a day); 5 public apps |
| Pricing from | BerryBell $0 free · from $25/mo Pro | Bolt $0 free · from $25/mo Pro | Replit (Agent) $0 free · from $20/mo Core | v0 (Vercel) $0 free · from $30/user/mo Plus | Lovable $0 free · from $25/mo Pro | Base44 $0 free · from $20/mo Starter |
| Best for | BerryBell Founders, makers, agencies wanting a full-stack app + ownership | Bolt Fast in-browser prototypes & developers | Replit (Agent) Agent-built apps with a full cloud IDE alongside | v0 (Vercel) Designers/devs building React/Next.js apps | Lovable Quick, polished web-app prototypes | Base44 Internal tools on a managed stack |
Pricing and features change frequently — every product here, BerryBell included, reflects our best understanding as of October 2026. Verify on each product's own site before relying on specifics; BerryBell's current plans are always on /pricing.
How we ranked these
We compared each tool on what it builds, its backend (database and sign-in), code ownership, hosting and custom domains, and price, using each product's own pricing and documentation pages. Disclosure: BerryBell makes this roundup and ranks its own product first. Each entry says what that tool does best, so you can judge the fit for yourself.
BerryBell
Our pickFree tier with AI and hosting credits and a real generated backend — no card. Source download and GitHub sync are on paid plans.
Describe an app in plain English and a team of specialised agents (code, design, database, deploy, QA, debug) builds, tests and ships a full-stack app — with a Postgres database and hosting included, code you own, and end-user auth and custom domains on paid plans.
Free in-browser builds, hosting and databases (Bolt branding).
An in-browser AI app builder by StackBlitz for JavaScript web apps (and Expo mobile apps); hosting, a Postgres database and auth are built in via Bolt Cloud, with Netlify or (on Pro and Teams) Supabase as alternatives.
Free tier with an IDE and agent usage limits.
An AI app builder where you chat with Replit Agent to build and publish apps, with a database, auth and hosting built in — and a full cloud code editor alongside when you want it.
Free plan with $5 of one-time credits for new users; built for React/Next.js apps.
Vercel's AI agent for building Next.js apps — outstanding for React/Next.js interfaces and design-to-code, with one-click Vercel deploys and databases added through integrations like Neon or Supabase.
Free tier for polished web-app prototypes.
A popular, polished chat-to-app builder. Great for quickly turning prompts into working web apps; its built-in backend (Lovable Cloud) provides a database, auth and storage, or you can connect your own Supabase.
Free tier on a managed backend platform.
An all-in-one AI app builder with a built-in backend — database, auth and hosting on every plan. Strong for shipping internal-style apps quickly on a managed stack.
Frequently asked questions
01 Can I build an app with AI for free? + –
Yes. BerryBell's free tier includes a welcome grant of AI and hosting credits with no credit card, enough to build and deploy a real app. Bolt, Replit, v0 and Lovable also offer free tiers with varying limits.
02 Which free AI app builder includes a backend? + –
BerryBell's free tier can generate a real backend, not just a front end: ask for anything that saves data and it offers to give the project its own Postgres database, paid for out of the welcome hosting grant. Sign-in for your app's own users is a paid-plan feature.
Try BerryBell yourself
The fastest way to compare is to build something. Free to start — no credit card.