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Web App Engineering

We bridge the gap between vision and performance. From scalable React applications to award-winning Webflow sites, we build digital products that feel alive and scale securely.
01
Webflow & Low-code Websites
02
AI & API Integration
03
Complex Dashboards & CRM
04
SaaS product development
05
Backend & Cloud Architecture
06
Mobile Apps (React Native)
Business Problem

The "Great design, bad code" trap.

The translation gap "Designers draw the dream, developers build the compromise." Perfect mockups often become clunky live builds. Poor execution makes expensive designs feel cheap.

We don't just code pages. We ship systems.

The technical debt trap "Spaghetti code & scalability issues." Without modular architecture, updates become impossible. We build Design Systems that scale.

We don't just write code. We architect solutions.
Unsure where to start? Get a deep health check.
Brand Audit
Scalability Check
Competitor Benchmarking

Cases.

See our Web Application in action:

stopdonaterussia.com
#StopDonateRussia. Stop the impact.
Gov.
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iGaming
PepperMill App. Unlock Belgium's finest slots.
iGaming.
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Buy for $19
Resources. Blue Dashboard icon pack.
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Real Estate
Tonomo Marketing. Spread the photos.
SaaS.
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iGaming
Twin casino. Gaming world, gaming design.
iGaming.
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more
More cases
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More cases
Process + Stack

Workflow steps

1
Architecture & Tech Strategy
We define the engine first. Complex SaaS? We use Next.js. Marketing site needing speed? We use Webflow. No guessing—just the right tool for the job.
Stack
AWS
Vercel
Supabase
2
Core Engineering (Back & Front)
Whether in React or Webflow, we don't build pages; we build systems. Every UI element is a reusable component, ensuring consistency and easy scaling.
Stack
Ruby
Node.js
React.js
React Native.
Expo
3
Motion & Interaction Layer
Connecting the "brain". We integrate backend logic, databases, or AI models (OpenAI/Anthropic) to make your interface smart and dynamic.
Stack
GSAP
Reanimated (Mobile)
4
QA, Deploy & Store Launch
Automated testing and strict visual QA. We deliver a live link that is optimized for Google and ready for heavy traffic.
Stack
TestFlight
Google Play
Lighthouse
GitHub CI/CD
Deliverables

What you get

Deployed live product.
Whether it’s a high-speed site on or a mobile app published to App Store & Google Play – everything is secured, optimized, and live.
Clean code or No-code setup.
You get the GitHub repository or the transferred Webflow project ready for future scaling.
AI-ready infrastructure.
Backend setup ready to scale with AI features, chatbots, or data processing.
Total content control.
An intuitive CMS setup that lets your team manage content, user data, and analytics without touching code.
The "handoff" pack.
We ensure your independence. Includes video training library (Loom) and technical documentation for future scaling.
FAQ

Frequently Asked Questions

What happens after launch? Do you offer support?

Yes. We provide a 30-day warranty period where we fix any bugs for free. After that, we offer flexible support retainers for adding new features, updating dependencies, and monitoring performance.

We have a legacy codebase. Can you refactor it or do we need a rewrite?

It depends on the "health" of your code. We start with a Technical Audit. If the architecture is solid, we refactor. If it’s "spaghetti code" that blocks scaling, we will recommend a rewrite to save you budget in the long run.

Who actually writes the code?

We partner with PUSH, a specialized engineering agency we’ve worked with for 8 years. Unlike "white-labeling" where agencies hide their vendors, we are transparent. PUSH engineers join our Slack, attend our sprints, and work directly with our designers. Flatstudio manages the product vision, PUSH ensures the code quality.

Do I need separate contracts?

For small projects (Webflow, Framer, Wordpress), Flatstudio handles everything. For complex Web Apps (React/SaaS), you sign directly with PUSH for development to ensure zero markup on developer rates. We manage the process, but you pay the engineers directly. Transparency wins.

Do we need completed designs before starting development?

Not necessarily. Since we are a full-cycle partner, we can start development parallel to the design phase (using wireframes), which speeds up the time-to-market by 20–30%.

How do you estimate costs — Fixed Price or Time & Materials?

For clear, small-scope projects (like Webflow sites or MVPs), we work on a Fixed Price. For complex, evolving products (SaaS, Platforms), we work on Time & Materials (sprints), giving you the flexibility to change priorities without contract renegotiations.

Is Webflow good for SEO and Enterprise?

Yes. We build on Webflow Enterprise. It offers bank-grade security and generates clean semantic code that Google loves. We optimize Core Web Vitals to green zones (90+).

Got more questions?