Rapid App Development

Your App.
Live in 6 Weeks.

We design, build, and launch production-ready apps for startups and growing businesses. Flutter for mobile, Next.js for web — on a Supabase backend that scales from day one. No 6-month quotes. No hand-offs. No surprises.

Get My Build Plan →

iOS, Android & desktop from a single Flutter codebase
SEO-ready web app on Next.js, backed by Supabase — auth, data & realtime on day one
Fixed-scope quote up front, working demo every week
App Store & Play Store submission handled for you

240+ Projects

130+ Clients

2013 Established

Free Build Plan + Fixed Quote in 48h

Ship Your
App Fast

No sales pitches. A senior engineer maps your scope, timeline, and a fixed price — free.

Trusted by teams at

The 6-Week Sprint

Idea to App Store, Week by Week

Week 1

Design Sprint & Architecture

Scope locked, screens designed, data model and API contracts defined. You approve everything before a line of code is written.

Weeks 2–4

Core Build

Flutter app and Next.js web app built in parallel on a shared Supabase backend. A working demo lands in your hands every Friday.

Week 5

Integrations & Polish

Payments, notifications, analytics, and your third-party tools wired in. Performance passes on real devices.

Week 6

QA, Launch & Handover

Full QA, App Store and Play Store submission, production deployment, and complete source code ownership — yours.

Why We're Fast

A Stack Built for Speed to Market

Most agencies rebuild the same plumbing on every project — and bill you for it. Our stack ships months of infrastructure on day one, so your budget goes into what makes your product different.

Flutter

One codebase. Mobile & desktop.

iOS, Android, and desktop from a single codebase — native-feel performance without paying for separate builds per platform.

Next.js

The web, done right.

Fast, SEO-friendly web apps and dashboards with server rendering out of the box — your product gets found on Google and feels instant.

Supabase

Months of infra, out of the box.

Auth, database, realtime, and file storage ready on day one — the undifferentiated heavy lifting your users never see but always need.

Plus the rest of the fast lane: Stripe payments, push notifications, CI/CD, analytics, and cloud deployment on AWS, GCP, or Cloudflare.

Shipped & Scaled

Apps We've Taken From Zero to Live

92%

fewer booking failures for Utoo Cabs — a ride-hailing platform matching drivers in under 4 seconds

$2M+

settled through Smoov, a California fintech app with 12,000+ linked bank accounts

$250K+

in creator payouts on Collebrity — a marketplace serving 800+ creators

120+

sellers onboarded with zero payout failures on MalayaMart, a Malaysian multi-vendor marketplace

The Difference

Typical Agency vs TESARK

	Typical agency	TESARK Rapid Build
Time to launch	3–6 months	6–8 weeks
Typical MVP cost	$60k+	From $15k, fixed quote
Platforms covered	One, then re-quote	iOS + Android + web together
Progress visibility	Monthly status calls	Working demo every week
Who does the work	Handed to juniors after kickoff	Senior engineers, direct access
Code ownership	Varies, often locked in	100% yours, full IP transfer

Questions Founders Ask

FAQ

How much will my app cost?

Most builds land between $15k and $50k depending on scope. You get a fixed, itemized quote within 48 hours of our first call — before you commit to anything. No hourly meters, no hidden costs.

How fast can we realistically launch?

A focused MVP ships in 6–8 weeks. Complex products (marketplaces, fintech, multi-role platforms) typically run 10–14 weeks. We'll give you the honest number in your build plan — and then hit it.

Who owns the code?

You do — completely. Full source code, infrastructure, and IP are transferred to you at launch. We're happy to sign an NDA before our first technical discussion.

Why Flutter instead of native apps?

One codebase means one team, one timeline, and one budget for iOS and Android — plus desktop if you need it — with performance users can't tell from native. It's how we cut months off the typical schedule. Where a product truly needs native (heavy AR, specialized hardware), we'll tell you straight.

What happens after launch?

Every build includes a post-launch support window for fixes. Most clients continue with a flexible support retainer or a dedicated team as they grow — 130+ clients have stayed with us since 2013 for a reason.

Get Your Build Plan.
Free, in 48 Hours.

Scope, timeline, and a fixed quote from a senior engineer — whether you build with us or not, you'll walk away knowing exactly what your app takes.