Gelt.dev
Fixa (formerly Gelt.dev) is an AI software builder that turns plain-language descriptions into production-ready, deployable web apps.
Fixa is a solid MVP generator for non-coders who need a live, deployable app fast. Its pay-per-message model and free tier make it easy to test, but you're trading control for speed. Pass if you need deep architectural control or handle complex, data-intensive workloads.
Verified 1d ago · liveness 70/100 · cite: rightaichoice.com/tools/gelt-dev
- Non-technical founders building an MVP fast and deploying to production
- Product managers wanting to prototype and test app ideas with real users
- Freelancers needing a quick, deployable base to iterate on
- Small business owners creating internal tools with payment processing
- Developers needing fine-grained control over code architecture
- Teams that require offline development capabilities
- Projects with complex, data-intensive backend requirements
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Skip Fixa if you need deep architectural control over code, require offline development, handle complex data-intensive backends, or have strict compliance and data governance needs that a third-party cloud service can't meet.
Usage-based billing means costs scale with message volume; heavy iteration can lead to unexpectedly high bills at the end of the month.
Fixa's pay-per-message model with a free tier is ideal for solo builders and small teams who want to test ideas cheaply, undercutting the monthly subscription of v0 or Lovable. However, heavy usage can rival or exceed subscription pricing, so it's best for low-to-moderate iteration volumes.
In short
Gelt.dev — Fixa (formerly Gelt.dev) is an AI software builder that turns plain-language descriptions into production-ready, deployable web apps. Best for Non-technical founders building an MVP fast and deploying to production, Product managers wanting to prototype and test app ideas with real users, Freelancers needing a quick, deployable base to iterate on. Free to use.
What's new in Gelt.dev
Checked 6 days agoAcross the latest 1 update: 1 feature update.
What people actually say about Gelt.dev — is it worth it?
We ran a structured research pass across product reviews, community discussions, and post-purchase forum threads to surface the patterns vendors won't publish themselves. Below: the recurring strengths, the hidden costs people mention most, and the cohort that consistently regrets adopting this tool.
24 mentions across 3 sources (Hacker News, YouTube, Product Hunt) · researched Jul 27, 2026.
- +Natural language to full-stack app in minutes – no coding needed.
- +Pay-per-message billing – only pay for what you generate.
- +One-click deploy to Vercel with built-in Stripe integration.
- +Multi-model AI support (Claude, GPT-5, Gemini) gives flexibility.
- +100% in-browser workflow – no setup, no terminal.
- −Very limited real user feedback – mostly just launch buzz.
- −Support depends on a single teenage founder – risky for uptime.
- −Stripe and Vercel integrations only – no external API support.
- −Not suitable for complex or data-heavy applications.
- −No offline development – must be always online.
- • Pay-per-message model can add up quickly with large projects
Viability Score
How well maintained and how widely used is Gelt.dev? Built from what the vendor actually publishes (docs, changelog, tutorials, integrations, pricing), whether the site is live, and how much real users discuss it. How we calculate this
Last calculated: September 2026
How we score →Key Features
- Natural language app description to deployment
- Multi-agent planning and execution in cloud workspace
- Start from scratch or import GitHub repository
- Chat-based guidance and iteration
- Connect MCP tools
- Command palette for quick actions
- One-click deploy to Vercel (via pricing page)
- Stripe payment integration via chat
- Full codebase download
- Pay-per-message billing
- Free tier includes GPT-5.6 Luna and Fixa Small
- Premium models: Opus 5, Sol, Terra, Grok 4.6
- Priority sandboxes on Starter
- Ad-free experience on paid plans
- Custom domains on Enterprise
About Gelt.dev
Fixa (formerly Gelt.dev) is an AI-powered software builder that transforms plain-language descriptions into full-stack web applications. Instead of merely generating code snippets, a multi-agent system operates in a cloud workspace to plan, code, run, and debug your app autonomously before deploying it to production. It targets non-technical founders, product managers, and developers who want to move from idea to live app quickly without wrestling with infrastructure or boilerplate. Start from scratch or import an existing GitHub repository, then guide the agent through natural-language chat. The agent can connect MCP tools, and you can trigger actions via the command palette. The result is a production-ready app hosted on cloud infrastructure, with one-click deployment and Stripe payment integration handled via chat. The full codebase is downloadable, so you can self-host or continue development in your own environment. Fixa emphasizes production-readiness over demo apps. It's a practical choice for rapid prototyping, internal tools, and MVPs that need to handle real users and transactions—not just static mockups. Compared to other AI builders like v0, Lovable, Bolt, or Replit, Fixa focuses on delivering a deployable, maintainable product with transparent code ownership. Pricing is pay-per-message, with a free tier including GPT-5.6 Luna and Fixa Small models, while paid tiers unlock premium models like Opus 4.8 and GPT-5.6 Sol & Terra, along with priority sandboxes and higher usage limits.
Behind the Verdict
We've watched the AI app builder space get crowded, and Fixa's pitch still cuts through: it promises production-ready software, not just a pretty demo. For a non-technical founder with a clear idea, the ability to go from a plain-language description to a deployed app with Stripe wired in is genuinely powerful. The multi-agent system handling the build, run, and debug cycle in a cloud workspace means you don't need to babysit every step. But the trade-offs are real. The pay-per-message billing can surprise you if you iterate aggressively—each message counts, and costs can climb fast. The free tier is fine for a taste, but you'll need a paid plan for anything serious. Also, while you can download the codebase, you're still inheriting whatever architecture the agent chose. Developers who want fine-grained control over structure will likely feel constrained. Where Fixa shines is speed. For hackathons, MVPs, or internal tools, it gets you to something real in hours, not weeks. The one-click deploy to Vercel and the chat-based Stripe integration are exactly the kind of features that let you focus on the product, not the plumbing. Compared to v0 or Lovable, Fixa feels more production-oriented—no mockups, just deployment. If you're a developer, you might find yourself fighting the agent's decisions. If you're non-technical, you'll love that you can get a working app without touching DevOps. Just know that 'production-ready' means it runs and handles load—it doesn't guarantee your team's best practices. Real-world caveat: the pricing page shows a 'Starter' tier but with a blank price, which is a red flag for transparency. Buyers should expect to contact sales or sign up to see real numbers. Compare that to competitors who list clear per-seat pricing. When to pick Fixa:
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Real-world workflow fit
Concrete scenarios for the personas Gelt.dev actually fits — and what changes day-one when you adopt it.
You describe your SaaS idea in chat, the agent plans and builds the app, and you connect Stripe via chat to accept payments.
Outcome: A live, production-ready MVP deployed to Vercel within hours, with no coding required.
You prototype a booking tool for your team, iterate on the UI and flows in chat, and share the deployed link for feedback.
Outcome: A functional prototype that real users can test, giving you validated insights before committing to full development.
You import a GitHub repository, let the agent refactor and add features, and download the updated codebase for your client.
Outcome: Quick iteration on existing code, with full code ownership and the ability to continue in your own environment.
Use Cases
- Build a marketing landing page with payment integration in minutes.
- Create a simple SaaS dashboard for internal team use.
- Prototype a mobile-first booking app for a local service business.
- Generate a full-stack todo app with user authentication and database.
- Deploy a portfolio site with a built-in contact form and Stripe donations.
- Import an existing GitHub repo and iterate with AI.
Models Under the Hood
as of 2026-08-28
Limitations
- Free tier has limited access and includes smaller models (GPT-5.6 Luna & Fixa Small).
- Paid plans scale with usage and include premium models (Opus 4.8, GPT-5.6 Sol & Terra).
- The platform is web-based, and usage is billed based on real model costs.
as of 2026-08-27
Verification history
We have re-verified Gelt.dev 6 times since . Each pass re-reads the vendor's own pages and re-checks every listed field against that evidence; passes where nothing had changed are marked as such.
- — re-verified summary, description, our verdict, our analysis, pricing model, pricing tiers, features, integrations, who it suits, who should skip it
- — re-verified summary, description, our verdict, our analysis, pricing model, pricing tiers, features, integrations, who it suits, who should skip it
- — re-verified summary, description, our verdict, our analysis, pricing model, pricing tiers, features, integrations, who it suits, who should skip it
- — re-verified summary, description, our verdict, our analysis, pricing model, pricing tiers, features, integrations, who it suits, who should skip it
- — re-verified summary, description, our verdict, our analysis, pricing model, pricing tiers, features, integrations, who it suits, who should skip it
- — re-verified summary, description, our verdict, our analysis, pricing model, pricing tiers, features, integrations, who it suits, who should skip it
Free to cite with attribution — this page re-verifies continuously.
12-month cost
Project the real annual outlay, including the implied monthly cost when only an annual tier is published.
Vendor list price only. Add-on usage, seat overages, and contract minimums are surfaced under Hidden costs & gotchas.
Plans compared
For each published Gelt.dev tier: who it actually fits, and what it adds vs. the previous tier. Cross-reference the cost calculator above for projected annual outlay.
Free
$0/month
Ideal for
Solo creator or curious tinkerer who wants to test Fixa's core abilities with limited usage and community support.
What this tier adds
Starting tier; includes limited agent access, chat on web, GPT-5.6 Luna & Fixa Small models, and community support—no cost.
Starter
$/month
Ideal for
Individual developer or small business owner who needs higher usage limits, premium models, and one-click deploy to Vercel.
What this tier adds
Adds higher usage limits, ad-free experience, one-click deploy, priority sandboxes, premium models (Opus 4.8, GPT-5.6 Sol & Terra), and codebase download.
Enterprise
Custom
Ideal for
Large teams or organizations needing custom domains, team management, and collaborative tools for shared app development.
What this tier adds
Adds everything in Pro, plus custom domains, team management, enterprise integrations, shared team design system, and real-time collaboration tools.
Where the pricing makes sense
The company stage and team size where Gelt.dev's pricing actually pencils out — and where peers do it cheaper.
Fixa's pay-per-message model with a free tier is ideal for solo builders and small teams who want to test ideas cheaply, undercutting the monthly subscription of v0 or Lovable. However, heavy usage can rival or exceed subscription pricing, so it's best for low-to-moderate iteration volumes.
Setup time & first value
How long it actually takes to get something useful out of Gelt.dev — broken out by persona, not the marketing-page minute.
Non-technical founders: 15-30 minutes to create an account, describe your app, and get a deployed link. Developers: 10-15 minutes to import a repo and get a sandbox running. Most users see their first working app within the first hour.
Switching to or from Gelt.dev
How to bring data in from common predecessors and how to get it back out — written for the switcher, not the buyer.
- →From Glide: Export your Glide app's data and recreate the UI in Fixa via chat, leveraging its full-stack capabilities.
- →From a static site: Upload your HTML/CSS/JS files or point to a GitHub repo, and have Fixa add a backend and deploy it.
- ↗To a traditional codebase: Download your full codebase and continue development in your own environment, self-hosting as needed.
Integrations
Resources & Guides
Tutorials & Learning
![バルタザール・ゲルト：攻略の鍵となる7つのヒント＋圧倒的勝利へ導く8ターンの完璧な立ち回り v5 [Total War: Warhammer III キャンペーンガイド]](https://img.youtube.com/vi/grvw_97JN00/mqdefault.jpg)
Official links
Tools that pair well with Gelt.dev
Common stack mates teams adopt alongside Gelt.dev, with the specific reason each pairing earns its keep.
Featured Head-to-Head Comparisons
Gelt Dev vs Spider Cloud
Choose Spider Cloud if you need a high-performance, cost-efficient web scraping API for AI agents and RAG pipelines, with recent additions like Browser AI commands. Choose Gelt.dev if you want to build a full-stack web app from a natural language description without coding. They solve different problems—Spider Cloud gets you data, Gelt.dev gets you a deployable app.
Gelt Dev vs Voyage Ai
Voyage AI and Gelt.dev serve entirely different needs. Choose Voyage AI if you are an enterprise building a high-accuracy RAG pipeline that requires domain-specific embeddings, long-context support, and rerankers — especially for finance or legal. Choose Gelt.dev if you are a non-technical founder or product manager who wants to instantly turn a natural language description into a deployable web app with Stripe integration and no coding.
Gelt Dev vs Temporal Ai
Temporal is for teams building production-grade AI agents and workflows that need durability, retries, and observability. Gelt.dev is for non-technical users who want to quickly generate and deploy web apps from a description. Choose Temporal if you need reliability at scale; choose Gelt.dev if your priority is speed of prototyping with minimal code.
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