Lovable vs Bolt vs Replit vs v0 — and where DevBX fits

The four most-compared AI app builders, side by side, with the one thing each shares: they mark up the AI and host your backend. DevBX shows the real AI price and hands you the backend.

Last updated 2026-06-25

	Lovable	Bolt	v0	Replit	DevBX
Price	~€20+ / mo + credits	~$25 / mo + tokens	~$20 / mo + credits	$25–100 / mo + effort-based	€19–99 flat platform fee / mo
Free tier	limited free	limited free	limited free	limited free	Paid — from €19/mo
AI pricing	✗ credits per message	✗ token-metered	✗ credit-metered	✗ effort-based metering	✓ real provider price — no hidden markup
Hidden markup on failed fixes	✗ failed fixes still cost credits	✗ failed fixes burn tokens (≈3× rewrites)	✗ failed generations cost credits	✗ refactors + re-bills on minor edits	✓ none — free on a flat BYO key
Full-stack vs UI-only	✓ full-stack	✓ full-stack	~ frontend-first	✓ full-stack	✓ full-stack (client + server + DB)
Code export & ownership	✓ code (GitHub) — DB in their Supabase	✓ code (zip / GitHub)	✓ code (Vercel git)	~ code (export limited)	✓ code + whole DB as one SQLite file
Backend portable	~ Supabase project (yours, but theirs to host)	~ Supabase (yours)	~ Supabase (coupled)	✗ locked-ish	✓ yours — plain SQLite file
Real dev/prod + rollback	✗ no first-class dev/prod + DB rollback	✗ no first-class dev/prod + DB rollback	~ code rollback only (no DB rollback)	✗ live-DB deletion incident on record	✓ dev/prod + rollback of code AND data
Deploy & custom domain	✓ deploy + custom domain	✓ deploy (Bolt / Netlify)	✓ deploy (Vercel)	✓ many deploy types	✓ public URL + custom domain
EU / GDPR resident	✓ Swedish company — US infra (Supabase/AWS)	✗ US-hosted	✗ partial / CLOUD Act	✗ US-hosted	✓ EU (Hetzner) — EU-sovereign by default

The short version

Lovable is the most polished UX. Bolt is the best in-browser dev loop. v0 is the best UI generator. Replit is the broadest cloud IDE. All four mark up the AI and host your backend. DevBX trades a little incumbency for the things they don't offer together: the real AI price with no hidden markup and your choice of provider, full ownership (code + SQLite), EU residency, and dev/prod rollback of code and data.

FAQ

Which AI app builder is cheapest?

On AI cost, DevBX — it charges the real provider price with no hidden markup (a flat platform fee plus an EU gateway at cost, or your own flat-rate key). Lovable, Bolt, v0 and Replit bill via credits/tokens/effort that bury a markup.

Which one lets me own my database?

DevBX gives you the code plus your whole database as one SQLite file. The others export code but keep the database in Supabase or their own backend.

Which is best for EU data residency?

DevBX is EU-resident (Hetzner). Lovable is an EU company on US infra; Bolt, v0 and Replit are US-hosted.

Build a real app — and actually own it.

You see the real AI price — no hidden markup buried in credits. Your choice of AI provider, and your code plus your whole database (one SQLite file) are yours to export anytime.

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