Base44 vs Lovable: which AI app builder fits your project?

The core difference between Base44 and Lovable is where your backend lives. Base44 runs its own: database, login, file storage, functions and a long list of built-in integrations, all hosted by Base44. Lovable builds your app on Supabase (as Lovable Cloud or your own Supabase project), which is a more portable foundation. Base44 is quicker to a finished app with fewer decisions. Lovable leaves you with more you can take elsewhere.

Both change often. Everything below reflects each product’s documentation as of September 2026.

Side by side#

Backend and portability#

This is the decision that matters most.

Base44 hosts everything. Your data lives in Base44 entities, users sign in with Base44 auth, and email, AI calls and uploads go through Base44’s built-in services. It’s convenient, and it means leaving requires rewriting your data layer. The Base44 to Supabase guide shows what that involves.

Lovable puts your data in Supabase, a Postgres database with auth and storage. With your own Supabase project you can take it anywhere. Lovable Cloud adds a managed layer on top, and moving a project from Lovable Cloud to your own Supabase is a documented, if fiddly, process.

If being able to walk away with a working backend matters, Lovable has the edge. If you’d rather not think about the backend at all, Base44 does more for you.

Pricing and credits#

Base44 charges message credits for AI building (about 0.5 to 4 per message depending on scope) and integration credits for your live app’s use of built-in services. Free gets 25 message credits a month with 5 a day. Starter is $16 a month billed annually, Builder $40, and many features need Builder. See Base44 pricing.

Lovable uses one credit pool for building, for Lovable Cloud usage by your deployed app, and for AI calls. Its Free plan has 5 daily build credits capped at 30 a month. Pro starts at $25 a month for 100 credits and scales up.

Both are hard to forecast. Base44’s split makes it easier to see what your running app costs separately from building it.

Code and developer workflow#

Both produce React code and sync to GitHub. Lovable’s GitHub sync is available on all plans. Base44’s two-way sync and ZIP export need the Builder plan, but Base44 adds a CLI, a local dev server that runs your backend on your machine, a cloud sandbox your own coding agent can work in, and an MCP server. For developers, Base44’s tooling is broader. See using Claude Code or Cursor with Base44.

SEO#

Lovable switched new projects to TanStack Start with server rendering in May 2026, so page markup arrives in the HTML. Content that the page fetches in the browser after load still isn’t in that HTML, which matters for pages with dynamically loaded content.

Base44 apps are client-rendered, and on custom domains Base44 serves recognized crawlers a pre-rendered copy of each page. It serves them from a cache, and a page with no cached render gets a generated summary: in our test of 47 Base44 sites, a first Googlebot request got the real page on only 34% of inner pages. Record pages share one title and don’t appear in the sitemap.

For a marketing site, both are workable. For a site that lives on search traffic across many data-driven pages, both need extra work, and a pre-rendering layer such as Encited works in front of either.

Which to choose#

Switching between them#

Base44 can import Lovable projects, bringing entities, data and frontend code across, with a preview of the first 100 items per entity before you commit. Going from Base44 to Lovable has no import path: you’d export the frontend, recreate the data model in Supabase and replace the Base44 SDK calls.

What to do next#

1. Write down how much backend control and portability you need.
2. Build the same small feature on both free plans and compare.
3. Read the Base44 review and the alternatives guide before deciding.