Cycling through all six. Tap any point to stop.

Measured on six things

AI app builder for non-coders to ship full-stack apps fast.

Design

Live homepage opens on a black void with no hero, then a small low-contrast prompt card floating in empty space. The night-ocean maker media is gorgeous — the actual site isn't. Branding is generic and the typography scale is missing.

Screenshots

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Greta.sh

About this app

Greta.sh is an AI-powered app builder that lets you create full-stack applications, websites, and tools simply by describing what you want. It's designed for founders, marketers, designers, and anyone with an idea but no coding skills. The platform uses a conversational interface where you type your idea, and Greta.sh generates a working app in real-time. You can connect your own tools like Claude, Gemini, and Google Ads, manage assets, and deploy with one click, including custom domains and SEO checks. Key features include a full-stack builder, MCP for integrations, an asset manager, and live developer support. It offers over 100 templates and claims to be a strong alternative to Lovable, Bolt.new, Replit, v0, Bubble, and Webflow. With a focus on speed and ease, Greta.sh aims to turn ideas into production-ready products quickly.

Key features

1Conversational AI app builder: describe an idea, get a full-stack app, website, or tool generated in real time.
2Self-growing website: Greta builds the site, puts it live, and keeps adding pages you review and approve.
3MCP connectors for Claude, Gemini, Google Ads and more, plus an asset manager, custom domains, and one-click deploy.

Target customer profile

Drawn from the product itself, not from a survey.

Demographic

Non-technical founders

Pain points

Lack coding skills; need to launch MVP fast

Primary needs

Quick app development without hiring developers

Demographic

Marketers

Pain points

Limited technical resources; need custom tools

Primary needs

Build marketing apps and landing pages easily

Demographic

Product managers

Pain points

Dependence on dev teams; slow prototyping

Primary needs

Rapid prototyping and iteration

Demographic

Designers

Pain points

Handoff gaps; difficulty implementing designs

Primary needs

Turn designs into functional apps

Scout Review

Written by AI from measured evidence, scored out of 100.

Greta.sh is an AI app builder with a genuinely interesting pitch — a 'self-growing website' that keeps adding pages you approve, MCP connectors for Claude/Gemini/Google Ads, and live developer support calls — wrapped in a homepage that opens on a black void. The live site scores 'poor' on the visual audit: no hero, low-contrast nav, a small prompt card floating in empty space, while the maker's night-ocean video looks like a different product entirely. Mobile Lighthouse is 59 with a 7.4s LCP; desktop is 81. Security is thin — 4/12 headers, SSO Enterprise-only, no public SOC 2. Accessibility is the bright spot at 96/100 with one contrast failure. Pricing is competitive ($5 Starter, $20 Pro, $200 Business) and the 100+ template gallery is real. The idea has a wedge; the execution on the front door does not yet sell it.

Measure by measure

Usability

Clear 4-step flow, 100+ templates, five pricing tiers with a free plan, and a real 'call a developer' support promise. But no live demo, several FAQ answers collapsed, and the primary CTA sits below a black void.

Design

Speed

Desktop Lighthouse 81 is respectable, but mobile is 59/100 with a 7.4s LCP — nearly three times the 'good' threshold. CLS is a clean 0 and TBT 265ms is tolerable; the hero media is doing the damage.

Security

HTTPS enforced and SPF/DMARC set, but HSTS, CSP, frame protection, X-Content-Type-Options, Referrer-Policy and Permissions-Policy are all missing — 4/12 on the header checklist. SSO is Enterprise-only; no public SOC 2 or pen-test page.

Accessibility

Lighthouse a11y 96/100 is genuinely strong, with one real failing audit: insufficient color contrast — the same low-contrast nav and prompt card the visual audit flagged. No a11y statement or WCAG claim published.

Growth

Crowded category — Lovable, Bolt, v0, Replit, Bubble all fight here — but 'self-growing website' plus MCP connectors and live dev calls is a real wedge. Credit pricing is competitive; social proof is thin.

Improvement areas

Homepage hero is a black void — no headline, no product shot, no above-the-fold CTA; the maker video is far more polished than the live page.
Mobile Lighthouse 59/100 with 7.4s LCP; security headers 4/12 with no HSTS, CSP, or frame protection, and SSO gated to Enterprise.
Social proof is generic first-name/city testimonials with no company or link; no accessibility statement or WCAG conformance claim published.

Design & Usability

The design story is split personality: the maker media is a polished cinematic night-ocean scene, and the live homepage is a black void with a small prompt card floating in it. No hero, no headline above the fold, low-contrast nav text, and a generic 'Get Started' button. Usability is better than design — the 4-step flow is clear, 100+ templates lower the blank-page problem, five pricing tiers with a free plan and a $5 Starter make it easy to try, and 'jump on a call with a developer' is a genuinely differentiated support promise. But there's no live demo, several FAQ answers are collapsed, and the primary CTA sits below the void.

Speed & Security

Speed is a tale of two devices: desktop Lighthouse 81 is fine, mobile 59 with a 7.4s LCP is not — that's nearly three times the 'good' threshold and the kind of number that loses mobile signups before the hero even paints. CLS 0 and TBT 265ms show the engineering isn't sloppy; the hero media is just heavy. Security is the weaker half: HTTPS is enforced and SPF/DMARC are set, but HSTS, CSP, frame protection, X-Content-Type-Options, Referrer-Policy and Permissions-Policy are all absent — 4/12 on the header checklist. SSO is gated to Enterprise, and there's no public SOC 2, ISO, pen-test or bug-bounty page. For a tool that generates and hosts production apps, that's a thin public security story.

Accessibility & Growth

Accessibility is a genuine strength: Lighthouse 96/100 with a single failing audit — insufficient color contrast, which matches the low-contrast nav and prompt card seen in the visual audit. No accessibility statement or WCAG claim is published, and the site is English-only, but the automated baseline is well above category norm. Growth is the interesting question. The AI app builder category is brutally crowded — Lovable, Bolt.new, v0, Replit and Bubble all sit in the alternatives list — and Greta.sh's positioning leans on 'self-growing website' plus MCP connectors and live developer support calls. That's a real wedge: a site that keeps adding pages you approve is a different pitch from 'we call an LLM for you.' Credit pricing ($5–$200/mo) is competitive. The limit is social proof — generic first-name/city testimonials with no company or link — and the fact that the incumbents can copy any feature here in a quarter.

Conclusion

If you're a non-technical founder who wants to describe an app and get one, Greta.sh is worth a free-tier spin — the 4-step flow, template gallery, and live developer calls are the parts that actually differentiate it. But the homepage is doing the product a disservice: fix the black void, raise the contrast, and get the LCP under 2.5s on mobile before you spend another dollar on ads. And publish a security page — for a tool that hosts other people's production apps, 'we have HTTPS' isn't a story.

Suggestions for improvement

Replace the black-void hero with a real headline, product screenshot, and above-the-fold CTA — the maker video is the design you should be shipping.
Cut mobile LCP from 7.4s to under 2.5s: compress hero media, lazy-load below-fold assets, and serve modern formats.
Add HSTS, CSP, X-Content-Type-Options, Referrer-Policy and Permissions-Policy; publish a security page with SOC 2 roadmap or pen-test summary.
Fix the contrast failure flagged by Lighthouse and replace generic first-name testimonials with linked, verifiable customer quotes.

How we score

Alternatives comparison

Named competitors, point by point. Nobody paid to appear here or to be left out.

	Greta.sh	Lovable	Bolt.new	Replit	v0	Bubble
Pricing entry point	Free tier; Starter $5/mo (75% off), Pro $20/mo, Business $200/mo, Enterprise custom	Free tier; paid plans from ~$25/mo with credit-based usage	Free tier; paid plans from ~$20/mo with token-based usage	Free tier; Core ~$25/mo, Teams and Enterprise tiers available	Free tier; Premium ~$20/mo, Team and Enterprise tiers	Free tier; Starter ~$32/mo, Growth and Team tiers
Full-stack app generation from prompt	Yes — full-stack apps, websites, and tools from a conversational prompt	Yes — full-stack apps from natural-language descriptions	Yes — full-stack apps with minimal coding	Yes — AI-assisted coding and app generation in a cloud IDE	Partial — focused on UI components and websites, not full-stack backends	Yes — via visual drag-and-drop, not prompt-driven
Self-growing / auto-expanding website	Yes — Greta keeps adding pages you review and approve	No — user prompts each change	No — user prompts each change	No — user-driven development	No — user prompts each component	No — manual visual editing
MCP / third-party tool connectors	Yes — MCP for Claude, Gemini, Google Ads, and more	Yes — integrations with Supabase, GitHub, Stripe, etc.	Yes — integrations with Supabase, Netlify, GitHub, etc.	Yes — broad integrations and package ecosystem	Limited — Vercel ecosystem integrations	Yes — large plugin marketplace
Live developer support	Yes — 'jump on a call with a Greta.sh developer'	Community + email support; no live dev calls advertised	Community + email support	Community + priority support on paid tiers	Community + email support	Community + email support; agency partners available
Template gallery	100+ templates	Template gallery available	Starter templates available	Templates and starter projects	Community templates and examples	Large template marketplace