Eight AI app builders, one honest table.
The same eight questions, asked of every tool: what it costs to start, how usage is metered, what a failed build costs you, and what you actually keep when you leave. Every competitor number was read from public pricing pages and official docs in July 2026 — where we couldn’t verify something, the table says so.
opix · Lovable · Bolt.new · v0 · Replit · Base44 · Firebase Studio · Anything
The comparison matrix
Scroll sideways for all eight tools. Sources: lovable.dev, bolt.new, v0.app, replit.com, base44.com, firebase.google.com/docs/studio and anything.com pricing pages and docs, read in July 2026.
| ● opixthat’s us | Lovable | Bolt.newStackBlitz | v0by Vercel | Replit | Base44by Wix | Firebase StudioGoogle · sunsetting | Anythingex-Create.xyz | |
|---|---|---|---|---|---|---|---|---|
| Entry price | Free welcome credits, no card; Starter $29/mo with 120 credits | Free tier (5 credits/day, 30/mo cap); Pro $25/mo with ~100 credits | Free tier (1M tokens/mo, 300K/day); Pro $25/mo from 10M tokens | Free ($5 credits/mo, 7 msgs/day); Team $30/user/mo — the $20 Premium plan is discontinued for new users | Free Starter (daily credits, 1 published app); Core $20/mo ($18/mo annual) with $20 credits | Free tier (25 credits/mo, up to 5 apps); Starter $16/mo billed annually (~$20 monthly) | Free preview — closed to new signups since June 22, 2026 | No free building — paid plan required; Pro $19/mo annual ($24 monthly) with 20k credits |
| Credit / usage model | Credits with a live per-message cost meter and hard spend caps | Variable credits per message (0.5–2.0 by complexity); plan credits roll over; separate Cloud credits for backend usage | AI tokens per prompt; paid tokens roll over one extra month | Dollar credits burned at model-dependent token rates; roll over, expire after 65 days | Effort-based agent billing against dollar credits — checkpoint cost varies with task complexity | Message credits plus separately metered integration credits; expire monthly, no rollover | No paid tier; deploys required pay-as-you-go Google Cloud billing | Variable credits per message; monthly plan credits expire with no rollover; top-off packs never expire |
| Failed-build policy | Free — failed builds, retries and auto-fixes cost $0 | No published $0-failure policy | Tokens bill the attempt, successful or not | No published $0-failure policy | Effort-based checkpoints charge for work performed; no failed-work-free guarantee | Credits are “non-refundable for AI mistakes” (official docs) | n/a — no per-build billing | Per-generation refund button for paid users, with a monthly cap and eligibility rules |
| Code export & ownership | Standard Next.js + TypeScript; GitHub export (Pro) and eject to any host | “You own your code”; GitHub sync | Code downloadable / exportable | GitHub sync + Vercel deploys on all plans, incl. free | Full cloud IDE — code editable and exportable (zip / GitHub) | Two-way GitHub sync from Builder ($40/mo annual); the managed backend stays on Base44 | Workspace zip export; Google directs migration to AI Studio / Antigravity | Zip download only; GitHub sync officially “coming soon” |
| Own database | Yes — dedicated Postgres per app, yours to take | Lovable Cloud backend (Supabase-centric), metered separately | “Unlimited databases” even on free; provider choice on Pro | Via the Vercel platform and marketplace integrations | Yes — built-in Postgres, one per app (Replit-hosted) | No — proprietary built-in entities store; per-table CSV export | Auto-provisioned Cloud Firestore + Firebase Auth (Google-hosted) | Yes — built-in Postgres per project on managed hosting |
| Custom domains | From Pro ($59/mo) | Not in our sourced data¹ | On Pro | Via Vercel deploys | Supported (.replit.app subdomain + custom domains) | From Builder ($40/mo annual) | n/a for new users — signups disabled | On paid plans |
| Mobile apps | No — responsive web apps only | No native output documented¹ | Yes — native mobile via Expo | None documented¹ — React web UI focus | Yes — native iOS/Android via Expo, with App Store guidance | No — web apps only | Prototyping agent was web-only | Yes — iOS/Android via Expo, app-store submission built in |
| Standout feature | Cost transparency: live meter, spend caps, and the vendor eats failures | Largest vibe-coding community + integrated Lovable Cloud | Instant in-browser full-stack runtime (WebContainers) | Best-in-class React/shadcn/Tailwind UI generation | Autonomous agent inside a complete dev + deploy platform | Most all-in-one no-code: auth, DB, email and payments built in | Being sunset — full shutdown and data deletion March 22, 2027 | Web + native mobile apps from one conversation |
¹ Not verifiable on the vendor’s public pricing page or docs when we checked — the vendor may well support it; confirm with them.
Data as of July 2026, read from each vendor’s public pricing pages and documentation. Pricing and terms change — verify current terms before deciding. All trademarks belong to their respective owners; opix is not affiliated with or endorsed by any other vendor named here.
One page per rival, strengths first.
Each comparison starts with what the other tool does well — because a comparison you can’t trust is worth nothing.
opix vs Lovable
The category leader’s ecosystem and Cloud backend versus opix’s live meter, spend caps and $0 failures.
opix vs Bolt
Tokens versus metered credits, WebContainers versus cloud sandbox — and where Bolt’s Expo support wins.
opix vs v0
The UI-generation specialist versus the full-stack loop: components or customers.
opix vs Replit
Effort-based agent billing versus a bill you can read — a full cloud IDE versus one focused stack.
opix vs Base44
All-in-one no-code on a managed backend versus standard Next.js on a Postgres you own.
opix vs Firebase Studio
Google is sunsetting Firebase Studio — what the shutdown means and where to build instead.
How to read this table
The sticker price is the least interesting row. What determines your real monthly bill is the metering model and the failed-build policy: the most documented complaint category across Lovable, Bolt, v0 and Replit in 2026 is credits or tokens burned on error-fix loops — paying again each time the AI repairs its own mistake. That’s why the matrix separates “what a plan costs” from “what an attempt costs.”
In fairness, the table cuts against us too. opix’s $29 entry sits above Lovable and Bolt at $25, Replit at $20, and Base44 at $16 on annual billing. We don’t build native mobile apps — Bolt, Replit and Anything do, via Expo. And opix is the youngest product on this page, without years of third-party reviews behind it. What we offer instead is a different deal on risk: a live meter that prices every message, hard spend caps, failed builds at $0, and one-time credit packs that never expire.
Two footnotes worth knowing before you shortlist: Firebase Studio has been closed to new signups since June 22, 2026 and shuts down entirely on March 22, 2027, so it’s not a viable pick for new projects. And Create.xyz didn’t disappear — it relaunched as Anything (anything.com), which now requires a paid plan for any building at all. The best test remains the same: run one real prompt on your shortlist and judge the code, the database and the bill — not the demo.
The fairest comparison is a build.
Run the same prompt here — welcome credits are free, the meter shows every cost, and failed builds are on us.