SaaS products
Subscription products, customer portals, and platforms people return to.
Accounts · Payments · DashboardsMVP development by EXTFOX
Your next big idea.
A real product.
From the first conversation to your first users.
We design, build, and launch the product you have in mind.
Ambitious products.
Trusted hands.
From possibility to product
An idea is the beginning.
Let’s make it work.
A working first release, built around what your users need most. Product decisions, design, and development stay together.
What you get
More than an idea.
A product you own.
- A clickable prototype
See the experience before development.
- A working first release
Your core features, ready for real users.
- A complete handover
Your code, accounts, and launch support.
WORKSPACE BOOKING
Space for your next idea.
The studioTomorrow · 09:00 to 12:00
Reserve workspaceYou’re booked.The studio
Tomorrow
09:00 to 12:00
What we can build
Different ambitions.
The same care.
A new business, a new product, or a better way to work. We build around the opportunity, not a template.
AI-powered products
Assistants, intelligent features, and tools that do useful work for your users.
Assistants · Search · WorkflowsConnected platforms
Marketplaces, commerce, and internal tools that connect people and systems.
Bookings · Operations · IntegrationsSelected work
Built for real businesses.
Used by real people.
Enterprise product · via a Norwegian partner
SR Bank
One workplace platform for room booking, building controls, and live sensor insights.
Bank-ready IoT platform delivered
Custom apps · Commerce
Smilepen
A custom app that replaced five tools, with subscriptions and connected team workflows.
$12K saved annuallyHow we build
Modern tools.
Lasting foundations.
We choose the stack around your product, so it can grow without starting over.
Product & experience
Figma
React
Next.js
TypeScript
Systems & infrastructure
Node.js
Python
PostgreSQL
AWS
AI & insight
OpenAI
Anthropic
Supabase
PostHog
A clear way forward
You bring the idea.
We take it through.
One accountable team from the first decision to the first release. You stay close to the product, without managing the build.
- 01
Find the focus.
We turn the idea into a clear first release, with scope, priorities, and a delivery plan.
- 02
Make it tangible.
We design the product and create a prototype so you can see the experience before we build.
- 03
Build the real thing.
We develop the product, connect the systems it needs, and share working progress.
- 04
Put it in people’s hands.
We test, launch, hand over ownership, and support the first release.
Your code. Your infrastructure. Your product.Get to know the team
Build where it counts
Power your growth
where it matters most.
The right first release gets your product into real use. The next releases make it better.
01
Launch the core
Give your users a complete, useful first experience.
02
Learn from real use
See where people find value and where they need more.
03
Build the next release
Improve the product around evidence, not guesswork.
In our clients’ words
Trust is earned.
Here’s how.
“They did more than deliver on time. Their proactive leadership and technical skill in delivering a really complex design from Figma ensured we launched our premium brand in weeks.”
Juval KuperbergChief Executive Officer, Biorenewal
“One custom app built by EXTFOX replaced five of the tools we were juggling. It manages our discount tiers, runs 40% faster, and saved us $12K a year. We finally have one system instead of a pile of workarounds.”
Chris WolfFounder & CEO, Smilepen
MVP pricing
A clear starting point.
A scope that fits.
A working MVP can start around $2k. More features, connected systems, and coordinated AI agents increase the scope and investment.
Focused MVP
$2,000USD · project budget
Typical starting budget
A working first release built around one clear product goal.
What this budget is suited to
- A focused set of core features
- Screens for the essential user journey
- A working product, not just a prototype
Connected MVP
$10,000USD · project budget
Indicative project budget
More features and connected workflows for a more demanding product.
What this budget is suited to
- Multiple product workflows
- More involved screens and functionality
- Integrations and AI features where needed
Advanced product
$15,000+USD · project budget
For higher-complexity builds
A broader product scope, including systems that coordinate multiple AI agents.
What this budget is suited to
- Advanced functionality across the product
- Multiple coordinated AI agents where needed
- Complex integrations and workflow logic
Complexity sets the price, not a screen count.
We agree on screens, features, integrations, and delivery requirements after reviewing the product documentation. These budgets guide the conversation; the final quote is based on the agreed scope.
Before we build
Good questions.
Clear answers.
How much does MVP development cost?
A focused working MVP typically starts around $2,000 USD. More complex projects can sit around $10,000 or $15,000 and above. The final price depends on the features, screens, integrations, AI-agent coordination, and the requirements defined in the product documentation. These are indicative project budgets, not fixed-price packages.
What is an MVP?
A minimum viable product is a working first release focused on your product’s most important use case. It lets real users experience the product and helps you decide what to build next.
Can you help if I only have an idea?
Yes. We turn the idea into a clear product plan, define the first release, and design the user experience before development. You do not need to arrive with a technical specification.
How long does an MVP take to build?
Focused MVPs can typically launch in 4 to 8 weeks. Integrations, sensitive data, and more complex workflows can require more time. We agree on a realistic scope and timeline before the build.
Who owns the product and source code?
You do. The codebase, infrastructure, and product accounts belong to your business. We document the handover so you can continue with us or another team.
What happens after launch?
We include 30 days of support after the project build. We can then work with you on improvements, new features, and the next stage of the product.
Let’s build together
An idea worth
talking about.
Choose a time with the team, or tell EXTA what you want to build. We’ll help define the right first release.
Dusan JovanovskiFounder, EXTFOX
Choose a time to talk
The live calendar loads as you approach.