FightTech: Product consulting, mobile and full-stack development

What we have built.

Four products of our own, live on the App Store, Google Play, and the web.

GoBrain

A fast 2048 plus daily logic mini games, packaged as native apps.

iOS · Android · Web

ProFocus: Frame & Timer

Desk clock, focus timer, and WiFi photo frame for spare devices.

iOS · Android · TV

Hack Não 1500 English

Offline vocabulary with an on-device AI pronunciation coach.

iOS · Android · Web

Manifest

Vietnamese lunar calendar with widgets and Live Activities.

iOS

See our work

Four ways we help you ship.

Hire us for a single stage or the whole run: from a product spec to a live app with monitoring on real infrastructure.

Talk through your idea

Product consulting

Roadmaps, specs, UX reviews, and build-vs-buy decisions. We help you decide what to build before you pay to build it.

product specSRSUX reviewestimation

Mobile engineering

Native Swift and Kotlin when the platform matters, Flutter or Capacitor when one codebase should cover both stores.

Swift / SwiftUIKotlin / JavaFlutterCapacitor

Full-stack web

TypeScript front to back: React interfaces, Node.js services, real-time sockets, and the admin dashboards behind them.

TypeScriptReactNode.js / FastifySocket.IO

Cloud and deployment

AWS, Google Cloud, Firebase, or a VPS behind Nginx. CI/CD pipelines, releases with fastlane, store submission handled.

AWSGoogle CloudVPS + NginxCI/CDfastlane

How we work.

Product thinking

Every feature starts from a user problem, not from a technology we want to try.

End-to-end ownership

One team carries the work from spec to store release, then keeps it running.

Built to last

Tested, documented, and maintained long after launch day.

Straight answers

Honest estimates, visible progress, and no surprise invoices.

From our blog.

Engineering write-ups on the products we build and the old devices we keep supporting.

Hack Não English · on-device AI

The stack behind those products.

Every tool below is in production in at least one of our apps today.

Mobile

Swift & SwiftUI

Kotlin & Java

Flutter

Dart

Capacitor

PixiJS

Godot

Web & backend

TypeScript

React

Vite

Node.js

Fastify

Socket.IO

Cloud & deploy

AWS

Google Cloud

Firebase

Docker

Nginx on VPS

Quality & delivery

Playwright

GitHub Actions

On-device AI is part of the toolbox too: we ship llama.cpp with GGUF models inside a production Flutter app, so features keep working with no network and no inference bill.

Have a product in mind?

Tell us what it should do and where it should run. We usually reply within two business days.

Start a project

We design, build, and ship products.