Custom apps, shipped in weeks, owned by you.
We build custom web and mobile apps that ship in weeks, not the usual six months. Web platforms in React/Next.js and native iOS/Android builds, engineered for speed, wired into the AI and data your product needs, and handed over with full source-code ownership on day one.
FangoLabs is a custom web and mobile app development agency that ships production software in weeks instead of months. We build React and Next.js web applications and native iOS and Android apps with secure authentication, scalable databases, payments, and the AI integrations your product needs — then hand you full ownership of the code on day one. A working MVP typically goes live in about 21 days, and most projects run on fixed, scoped pricing so you know the number before a line of code is written.
The difference is speed without the usual trade-off. Most agencies quote three to six months for a first release; AI-assisted engineering plus senior operators lets us compress that to product sprints you can see, test, and steer every few days. You get clean TypeScript-first code with no platform lock-in, a clear product roadmap, and a team that thinks in revenue and retention — not just tickets closed. Whether you need an MVP to validate a market, an internal tool to remove a bottleneck, or a customer-facing app to grow an existing business, the engagement is the same: blueprint the product, design it, build it in sprints, ship it, and leave you owning every repository, file, and deployment account outright.
What is Included inside the Deliverables
Everything we customize and ship to support this specific channel
- ✓Product blueprint + user-journey wireframes (within 48 hours)
- ✓Production-ready UI design system in Figma (light + dark)
- ✓Web app in React / Next.js / Tailwind, fully responsive
- ✓Native cross-platform mobile build (React Native / Expo or Flutter), iOS + Android
- ✓Secure token-based authentication, roles, and permissions
- ✓Scalable backend: SQL or Firestore schemas + REST/GraphQL APIs
- ✓Stripe subscriptions, checkout, and billing portal
- ✓AI features wired in — chat, search, classification, or recommendations
- ✓App Store / Play Store deployment, full code handover, 30-day warranty
Key Technology Differentiators
Why we outperform generic agencies utilizing manual operations
⚡ MVP in weeks, not months
AI-assisted engineering plus senior operators compresses a six-month build into product sprints. You see and test working features every few days, not at a single distant launch.
⚡ You own everything from day one
Full IP, every repository, design file, and deployment account is yours from the first commit. No platform lock-in, no license leash, no ongoing fees to keep your own product running.
⚡ AI built into the product, not bolted on
We are an AI agency first. Chat, search, document parsing, and recommendation engines are designed into your data model and roadmap — not retrofitted later as a fragile add-on.
⚡ Fixed scope, known number
Most projects are scoped and priced before we write code, so you get a clear figure instead of an open-ended time-and-materials invoice that drifts 30 to 80 percent past estimate.
Web & Mobile App Development — Transparent Pricing
Choose the monthly tier that matches your company size. Every plan features our strict $0 upfront down-payment policy.
- Fixed-scope MVP
- $0-down staged payments
- Full source-code ownership
- 30-day warranty
- 6–12 week build
- Web + iOS / Android
- Payments + AI features
- Staged payments
Optional post-launch care plan: updates, monitoring, security, and new-feature sprints.
Tell us what you need — bigger scope, custom integrations, or a different mix — and we'll quote it. $0 setup, no obligation.
How We Work
A transparent, repeatable delivery process engineered for speed and measurable outcomes.
We map the user journeys, core features, and data model, then turn it into wireframes and a scoped, fixed-price plan — usually within 48 hours of kickoff.
High-fidelity Figma screens in a reusable design system, light and dark, so you approve the look and flow before engineering starts.
We build in short sprints across frontend, backend, and mobile in parallel. You get a working preview link every few days to click through and steer.
We wire in authentication, payments, third-party APIs, and the AI features — chat, search, classification, or recommendations — that the product actually needs.
QA, performance and security tuning, App Store and Play Store submission, cloud deployment, and a full handover of code and infrastructure accounts.
30 days of post-launch support and bug warranty, then an optional maintenance and iteration plan to keep shipping new features.
Average performance engineering outcome
"Modernized campaign funnels and deployed automated qualification layers. Shipped highly performant landing experiences that captured traffic instantly."
Build your custom proposal
Build and customize your hypothetical Web & Mobile App Development workflow. Select parameters to estimate delivery timing and recommended budgets.
Estimated Conversion & Value Lift
Estimated 40% lead-to-meeting conversion increase, full multi-agent automation setup, and brand-tuned assets.
Frequently Asked Questions
- App builds are scoped fixed-bid projects with flexible $0-down staged payments, separate from our monthly marketing plans. A focused MVP starts from about $10,000 and ships in roughly 21 days; a full production app runs $25,000 and up over six to twelve weeks depending on scope. FangoLabs scopes and fixed-prices most projects before any code is written, so you get a firm number up front rather than an open-ended hourly bill, and an optional maintenance plan runs $500 to $1,500/mo after launch. The exact figure depends on feature complexity, whether you need web only or web plus native mobile, and how much AI is built in.
- A working MVP typically goes live in about 21 days, and a full production app generally takes six to twelve weeks depending on scope. We work in short sprints with a clickable preview every few days, so you are never waiting months to see progress. AI-assisted engineering plus senior operators is what lets us deliver in weeks what most agencies quote at three to six months.
- Yes — completely. You own every repository, design file, and deployment account from the first commit, with full intellectual-property rights and no platform lock-in. There are no license fees or vendor leashes required to keep your product running, and you are free to modify, scale, or move it to another team at any time.
- Every build includes product blueprinting and wireframes, a full Figma UI design system, frontend and backend engineering, secure authentication, a scalable database, and cloud deployment to the App Store, Play Store, or web. Payments, push notifications, third-party APIs, and AI features are wired in as your product needs them. Projects close with a full source-code handover and a 30-day post-launch warranty.
- As an AI-first agency, we both build faster with AI engineering tools and design AI features directly into your product. That can mean an in-app conversational assistant, semantic search, document or image parsing, lead classification, or a recommendation engine — designed into your data model rather than bolted on later. We scope which AI features genuinely drive revenue or retention so you are not paying for features that only sound impressive.
- Yes. We build TypeScript-first on clean, modern frameworks like React, Next.js, and React Native, with scalable database schemas and well-documented APIs, so adding users and features later does not require a rewrite. Every project includes a 30-day warranty and security tuning, and you can continue on an optional maintenance and iteration plan. Because you own all the code, you are also free to bring the work in-house whenever you choose.
Are these proposals truly free?
Yes, our diagnostics and blueprint proposals are 100% customized for your company url. No pitch scripts, no surprise automatic billing cards required.
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