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

One balance vs two counters

Lovable and Base44 both build a web app from a chat with an AI, database and hosting included. The difference that weighs most on the bill is what each one counts, and in which counter.

Lovable keeps a single balance of “credits” per workspace. It pays for the messages you send to the AI, and also for the “Cloud” backend (database, storage, authentication) and the AI features of published apps, once the small monthly allowances are used up.

Base44 keeps two monthly counters. “Message credits” pay for building: your instructions to the AI. “Integration credits” pay for the live app when it uses Base44’s built-in services: about 1 credit per email, per image, per file upload, or per call to a language model in automatic mode, and 5 per second of video. Database reads and writes consume nothing, and neither do visual edits you make by hand.

In practice: on Base44, a heavily used app does not eat into your building budget. On Lovable, everything comes out of the same balance.

The same month of building, counted on each side

Take 40 requests to the AI in a month: 20 visual tweaks, 15 routine changes, 5 heavier additions. Both vendors publish estimates by type of request. Their categories do not line up exactly, so treat the result as a rough guide.

Request	Count	Lovable (vendor’s examples)	Base44 (vendor’s estimates)
Simple visual tweak	20	20 × 0.50 = 10	20 × 0.5 = 10
Routine change, small feature	15	15 × 0.90 = 13.5	15 × 1 = 15
Heavy addition (authentication, complex module)	5	5 × 1.20 = 6	5 × 2 = 10
Total	40	29.5 credits	35 message credits

Set against the plans:

• Free. The scenario barely fits in Lovable’s Free plan (30 build credits per month, 5 per day). It does not fit in Base44’s (25 message credits per month, at most 5 per day): you would be 10 credits short.
• First paid price. Lovable Pro, at $25 per month, starts at 100 credits: a little over three times the scenario. Base44 Starter, at $20 per month, gives 100 message credits: a little under three times the scenario, plus 2,000 integration credits.

The two allowances show the same number but do not pay for the same thing: Lovable’s balance also funds the backend and the AI of the published app.

And once the app is running?

Say your app sends 300 emails and makes 200 calls to a language model per month. On Base44, at the vendor’s rates: 300 + 200 = 500 integration credits. The free plan (100 per month) is not enough; the Starter plan (2,000) covers four times that volume.

On Lovable, that math is not possible from the pages read: AI in published apps is drawn from the shared balance after a monthly allowance of 4 AI credits, with no per-call rate in our data. So it cannot be priced ahead of time here.

Out of credits: top up or wait

	Lovable	Base44
Building	Stops; the current message is paused	No more messages to the AI until the reset
Live app	AI features return an error, backend paused (data retained), site still online	Actions that need integration credits fail with a generic error
Buying credits	One-time or automatic top-up on Pro and Business, valid 12 months	No purchase described: change plans
Unused credits	Roll over while the subscription is active, then expire	Lost at the reset, except a remainder carried over on a monthly upgrade

Top-up amounts and tiers are in Lovable pricing and Base44 pricing.

Code, domain, mobile: from which plan

• Code export. Lovable: Two-way GitHub sync on all plans; .zip download on paid plans. source Base44: Two-way GitHub sync and zip export from the Builder plan up. source Builder is Base44’s third plan, after Free and Starter. Base44’s pricing page says of its GitHub export “Nothing is locked to the platform”; the documentation spells out the plan required.
• Editing code inside the product. From Pro on Lovable, from Starter on Base44.
• Custom domain. Lovable: paid plans only. Base44: from Starter up, with a free domain for one year on annual plans, to be claimed within 60 days.
• Mobile. Lovable builds web apps, with no built-in store submission. So does Base44, but from Builder up it generates the files for the App Store and Google Play, where the app runs in a web view (your site displayed inside an app shell).

Database, user accounts, data

Both tools supply the database and authentication with nothing extra to plug in. On Lovable, the “Cloud” backend is built on Supabase’s open-source foundation; you can connect your own Supabase project, and leaving the built-in backend is only possible toward Supabase. On Base44, the database is organized in tables with CSV export, limited to 200 MB on the free plan, and sign-in offers email and password, Google, Microsoft, Facebook, and Apple.

On data region, the gap is clear. Lovable: "Cloud" backend: Americas, Europe, or Asia-Pacific; region set at activation and not changeable. source Base44: United States by default; EU, United Kingdom, or Australia possible on Business or Enterprise plans. source Base44’s pages also contradict each other on plans: a “Business” plan appears in the documentation but not on the pricing page.

What does not set them apart

• No free trial of the paid plans is mentioned on either pricing page.
• A vendor label appears on free apps (“Edit with Lovable,” “Edit with Base44”) and comes off with a paid plan.
• The cost of a message varies with the work requested on both, and each has a discussion mode with steadier pricing: 1 credit per message in Lovable’s “Plan” mode (plus any research by subagents), about 0.3 credits per message in Base44’s “Discuss” mode.
• Both vendors’ terms of service assign the code produced to you.

To widen the search: Lovable vs Bolt, Base44 vs Replit, the Lovable alternatives, and the AI app builder comparison. The Lovable and Base44 profiles cover each tool in detail.