Software studio · Sylhet → worldwide

Crazy ideas.
Shipped software.

We are a small studio that takes products from first sketch to the app stores — design, code, payments, launch and everything in between.

We ship withFlutter·.NET·Firebase·Azure·Stripe

What we do

Four disciplines, one team.

Mobile Apps

Cross-platform apps in Flutter that feel native on both iOS and Android, and fully native Android in Kotlin when a project calls for it.

  • Flutter & Dart
  • Native Android (Kotlin, Java)
  • App Store & Play launches
  • CarPlay / Android Auto

Web Applications

Fast, modern web products — marketing sites that load instantly and app dashboards built in Vue or Next.js.

  • Vue.js / Next.js
  • Static & SSR builds
  • Dashboards & portals
  • SEO fundamentals baked in

Backends & Payments

The machinery behind the app: .NET APIs, databases, auth, and the payment flows that actually collect revenue.

  • .NET / C# APIs
  • SQL & Firebase
  • Stripe, RevenueCat, Adapty
  • Subscriptions & invoicing

Quality & DevOps

Shipping is a habit, not an event — automated tests and pipelines that keep every release boring in the best way.

  • Playwright E2E testing
  • Azure DevOps CI/CD
  • Cloud on Azure & AWS
  • Monitoring & maintenance

How we work, in detail →

Shipped work

Live in the App Store and Google Play.

Products built end to end — payments, offline sync, CarPlay, subscriptions and all.

Range Buddy app screenshot

Range Buddy

Shooting-range companion with Stripe Connect multi-party payments and real-time sync.

  • Flutter
  • Firebase
  • Stripe Connect
Nightingale app screenshot

Nightingale

Audiobook experience with CarPlay, Android Auto and offline listening on an Azure backend.

  • Flutter
  • CarPlay
  • Azure
Sol Store app screenshot

Sol Store

Full e-commerce app, from product browsing to secure checkout.

  • Flutter
  • E-commerce
Schedule Pro app screenshot

Schedule Pro

Workforce scheduling with a fully responsive interface from phone to tablet.

  • Flutter
  • Responsive UI
Dent Shop Manager app screenshot

Dent Shop Manager

CRM for auto-body shops with subscriptions, Stripe payments and a .NET backend.

  • Flutter
  • .NET
  • Stripe
SafeMom app screenshot

SafeMom

Pregnancy-safety ingredient checker, stabilised and monetised with an Adapty paywall.

  • Flutter
  • Adapty
  • Ad SDKs

Client words

Hired again. And again.

I have hired Tanjim many times, and I would still do it again whenever any need arises. He is very professional and committed. He is attentive to detail, punctual, and is always on time. He makes sure to get business requirements right.
Mosab Abumarzouk
Completing all work above expectations and ahead of deadlines. I have very limited understanding of coding, and have ideas that grew outside the original scope. They made reasonable accommodations and discussed any budget concerns ahead of time so there were no unexpected costs.
Jeremy Gill
Hired for a specific purpose to update my mobile app. He did the job well, quickly, and was great with communication. Would hire again.
Ben Silverstein

The humans

Small team. All in.

The people who answer your messages are the people writing your code.

The Crazybot Studio team working through a build together — code and a sprint board on the screens
Portrait of Tanjim Ahmed
Tanjim AhmedCo-Founder & Lead Developer
Portrait of Nayeem Ahmed
Nayeem AhmedCo-Founder & Operations
Portrait of Forhan Ahmed Chowdhury
Forhan Ahmed ChowdhurySoftware Developer

More about how we work →

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