Custom app or SaaS, from idea to paying customers

We build web apps and SaaS products with the same stack and playbook that runs Plansett, Dinbot and Neksti: Next.js, TypeScript, Supabase, Stripe and Vercel. Prototype in weeks, production right after.

service
App and SaaS development
delivery
prototype in weeks
price
fixed, 50–300k NOK typical
stack
Next · Supabase · Stripe
ai
built in when needed
01what you get

What we build.

From first prototype to a product with paying users. Design and interface are part of the same contract.

item.01

MVP and prototype

A running prototype on real data, not clickable mockups. Enough to test with users and decide whether to go further.

What we cover
  • Scope workshop first
  • Running version in weeks
  • Tested with real users
  • Fixed price
Next.jsSupabase
item.02

Full SaaS

Login, roles, payments and admin. Everything needed for the product to take on customers from day one.

What we cover
  • Auth and multi-tenant
  • Stripe payments and subscriptions
  • Admin panel and reports
  • Hosted on Vercel
StripePostgresVercel
item.03

Integrations

OAuth and APIs against the systems your customers already use. We have built against Google, Notion, Tripletex, Fortnox and Telegram.

What we cover
  • OAuth login
  • Accounting and invoicing
  • Messaging channels
  • Your own APIs
OAuthAPI
item.04

AI in the product

Assistants, search across your own data and agents that do the work. With iOSE-DNA: Constitutional AI, state detection and usage tracking that prevents overuse.

What we cover
  • RAG and hybrid search
  • Multi-agent orchestration
  • Vendor-agnostic
  • Cost control built in
ClaudeGPTGemini
item.05

Design and interface

We design and build the interface in the same delivery. No handover between a design agency and developers.

What we cover
  • Design system from the start
  • Mobile and desktop
  • Accessibility
  • Dark and light mode when needed
UIDesign
item.06

Continued development

After launch: new features per sprint, monitoring and upgrades. Predictable, on a monthly agreement.

What we cover
  • Feature work per sprint
  • Monitoring and uptime
  • Security and upgrades
  • Direct contact with the builders
monthly
02how we work

From idea to production.

Ship first, perfect later. We ship, measure and adjust rather than plan forever.

01

Scope workshop

We define what the product must do in its first version, and what can wait. The result is a fixed price and a timeline.

02

Prototype

A running version on real data. It is tested with users before we build further.

03

Build in sprints

Features are delivered in short sprints to a preview link. You give feedback along the way.

04

Launch and operations

Production on Vercel with monitoring, backups and alerts. Continued development on a monthly agreement if you want.

03pricing

Honest pricing. No surprises.

Fixed price for a defined deliverable. Typically 50–300k NOK depending on scope.

price.01

Prototype / MVP

A running first version, ready for user testing.

fixed price
price.02

Product

Full SaaS with auth, payments and admin.

50k–300k NOK
price.03

Continued development

Sprints, operations and monitoring.

monthly

See all prices →

04delivered

Products built on the same stack.

Our own portfolio, the same team and playbook you get.

PropTech · SaaS

Plansett

AI-native platform for building permit applications.

plansett.io →
AI · B2B SaaS

Dinbot

Private AI assistants for Norwegian SMBs.

dinbot.io →
Productivity · B2C

Neksti

ADHD-friendly task app: one next task at a time.

neksti.com →
AI · Content production

Arfur

AI engine for culturally tailored content production. Powers Nordic Tales and Filipino Tales.

arfur.ai →
05faq

Common questions about app development.

What founders and businesses usually ask.

How much does it cost to develop an app?

A fixed price agreed after the scope workshop. Fixed-price projects typically range from 50,000 to 300,000 NOK depending on scope. A prototype sits at the lower end, a full SaaS product higher.

Do you build native apps for iOS and Android?

We build for the browser and PWA first. It works on mobile without an app store and is faster to deliver and change. App store distribution comes when there is a real need for it.

Which technology do you use?

Next.js, TypeScript, Supabase, Postgres, Stripe and Vercel. The same stack across every product gives patterns tested in production, not experimental infrastructure on a client's budget.

Who owns the code?

You do. The code lives in your own repository from day one, and you can take it to other developers at any time.

Can you take over a project someone else built?

Yes. We take over systems that need a steady hand, on a monthly agreement for operations and continued development. We start with an architecture review.

How long does it take?

Prototype in weeks. A full product depends on scope, but we deliver in sprints so something is in use long before everything is finished.

06contact

Have an idea that should be built?

Tell us briefly what the product should do, who it is for and the budget range you are working within. We respond within 48 hours.

hei@b17studios.com

A few lines about the project is enough. If it isn't a fit we'll say so honestly, and point you somewhere better if we can.

Send email →