Mobile App Development
Flutter · iOS & Android
We Engineer Digital Products That Scale
Northforge helps startups and businesses build production-ready mobile apps, SaaS platforms, and AI-powered products from architecture and development to launch and scale.
Our Services
What We Offer
SaaS Product Development
Web app · Admin · Billing
AI Integration & Automation
LLM features · Automation
100%
Job Success on Upwork
5.0
Across 8 completed contracts
Top Rated Plus
Upwork’s top talent tier
10k
Daily active users on a shipped app
About Us
One Engineer, Not an Agency Bench
Northforge is one senior engineer’s studio: Top Rated Plus on Upwork, 100% job success, 5.0 across eight completed contracts. The person who scopes your build is the person who writes it.
Who you would be working withTech Stack
Build With the Tools You Love
Flutter and Supabase by default — it is the fastest route to a two-platform product with the fewest moving parts. If your team already runs something else, we work in your stack and tell you what it costs in time before you commit.
Flutter
Supabase
Python
React Native
Firebase
Node.js
Our Process
From idea to production
Discover
A short call and a written scope: who the users are, what ships on day one, and what can wait.
Architect
Stack, data model and auth decided before any UI exists, with the trade‑offs written down.
Build
Weekly builds on your own phone, written by the engineer who made the architecture calls.
Validate
Automated tests, real-device QA and a beta with real users before your customers find the bugs.
Launch
Store submission, backend deployment, monitoring and analytics wired in before release.
Scale
Performance tuning, hardened infrastructure and the next features shipped on the same codebase.
Our Portfolio
Turning Ideas into Exceptional Products
JoinBeUs
A language-learning platform built across mobile, web and a 70-page admin with 11-role access control, Stripe and AI speech scoring.
UpAlerts
Real-time AI alerts on iOS and Android, serving 10,000 daily active users with a 40% lift in engagement.
Crypto AI Assistant
Three AI models — OpenAI, Gemini and a sentiment model — inside one live Flutter crypto app, rated 5.0 on delivery.
Need Answers
Got Questions? We’ve Got Answers
We design and develop mobile apps, SaaS platforms, web applications, AI-powered solutions, and custom software tailored to your business goals.
Flutter and Dart on mobile, with React Native where a project already runs it. FastAPI, Node.js, Supabase and Firebase on the backend, PostgreSQL for data, and LangChain, OpenAI and Gemini for AI work.
An MVP usually ships in 8–12 weeks. Larger platforms run in continuous delivery cycles once architecture is agreed.
Both. We take founders from idea to first release, and we plug into established product teams that need senior engineering capacity.
Yes — research, product design and design systems are part of every engagement, not a separate hand-off.