Now building for Android & iOS

Building Apps
That Matter

We craft mobile applications that solve real problems — utility, productivity, health, and everyday tools, bundled with purpose and precision.

Explore Our Apps Work With Us
20+
Tools Built
1
Flagship App
100%
Flutter Native
0$
Subscriptions
AppFonix logo
Active Development
Flutter & Dart
About Us

We build tools people actually use

AppFonix is a software company on a mission to replace the clutter of single-purpose apps with beautifully unified, purposeful mobile experiences. Every tool we ship is precision-built, performance-tuned, and designed to feel at home on your device.

Quality First

Every feature is designed, tested, and refined before it reaches users. We ship when it's right — not just when it's ready.

User-Centric Design

Intuitive flows, clear feedback, and interfaces that respect your time and attention.

Continuous Improvement

Launched apps keep evolving. We listen, iterate, and improve — because a great app is a living product.

Our Products

Apps built with intention

Thoughtfully crafted tools that work seamlessly together — no bloat, no filler.

Flagship App
PegTool

20+ everyday tools on a single pegboard. Calculator, notes, clock, compass, QR scanner, games, and more — all in one beautifully organised app.

FlutterAndroidSQLiteMaterial 3
Navigation & Travel
Speedometer Pro

GPS-powered analog speedometer with trip stats — max speed, average, distance, and elapsed time. Supports km/h and mph with demo mode.

GPSGeolocatorAnalog UI
Measurement Tools
Angle Meter & Protractor

Accelerometer-based inclinometer with EMA filtering and colour-coded precision. Protractor with draggable rays, camera overlay, and SQLite history.

AccelerometerCameraPrecision
Discuss a Custom App
What We Do

End-to-end mobile
development

From concept to App Store, we cover the full product lifecycle with precision and care.

Flutter App Development

Cross-platform native apps for Android and iOS from a single codebase. Fast, smooth, and pixel-perfect with Material 3 design system compliance.

IoT & Sensor Integration

Deep device hardware integration — GPS, accelerometer, gyroscope, magnetometer, camera, microphone, and flashlight, handled with precision.

Local-First Architecture

SQLite and SharedPreferences powered local storage with optimised queries. Fast, offline-capable apps with clean repository patterns.

UI/UX Design

Premium, minimal interfaces crafted in Material 3. Dark mode, responsive layouts, smooth animations, and accessibility-first design.

App Optimisation

Performance audits, code refactoring, widget tree optimisation, and build size reduction for existing Flutter applications.

App Store Publishing

End-to-end publishing support for Google Play and Apple App Store — store listing, screenshots, metadata, and release management.

Why Choose Us

Serious about craft

We are not an agency juggling dozens of clients. We are builders who care deeply about what we ship.

Flutter-First Expertise

We build exclusively with Flutter — faster iteration cycles, consistent cross-platform quality, and a team that knows the framework inside out. No context-switching, no shortcuts.

Self-Contained Architecture

Each tool owns its UI, state, and storage. No shared state bugs, no side effects. Clean, modular code that scales without breaking.

Privacy by Default

Local-first storage with no unnecessary cloud dependencies. User data stays on the device — simple, transparent, and secure.

Honest Product Strategy

We only build what solves a real problem. No vanity features, no engagement dark patterns — just purposeful, useful software.

Performance as a Feature

60fps animations, sub-second load times, minimal memory footprint. We treat performance not as an afterthought but as a core requirement.

How We Work

Our development process

A clear, repeatable process that keeps quality high and surprises low.

1

Discovery

Define the problem, target users, and core use cases. Scope is set before a single line of code is written.

2

Design

Wireframes, user flows, and Material 3 component mapping. UI decisions are made with intent, not improvised.

3

Build

Clean Flutter architecture — separated UI, business logic, and data layers. Modular widgets, optimised state.

4

Test

Real device testing on Android hardware, edge case coverage, performance profiling, flutter analyze checks.

5

Ship

Polished store listing, optimised assets, and a clean release process. Then we monitor, listen, and iterate.

What Users Say

Built for real people

"Finally one app that replaces my entire toolkit. The pegboard layout is genuinely clever — I can see everything at a glance and find tools instantly."

Ahmad Mukhriz
Field Engineer, Kuala Lumpur

"The angle meter alone saved my renovation project. Accurate, fast, and the colour-coded status is brilliant. It's a pro tool in a free app."

Razif Hakim
Contractor & DIY Enthusiast

"Impressed by how polished this is from an independent developer. The UI is clean, tools are snappy, and it keeps getting better with each update."

Syafiq Noor
Product Manager, Tech Startup
Insights

From our build log

View all posts
FlutterMay 20265 min

Building 20+ tools in a single Flutter app without shared state chaos

How PegTool's self-contained tool architecture keeps complexity manageable as the app grows.

SensorsJune 20267 min

EMA filtering for accelerometer data — eliminating jitter in angle measurements

The maths and Flutter implementation behind smooth, reliable inclinometer readings on mobile.

BusinessJune 20264 min

Freemium vs one-time purchase — what works for utility mobile apps in 2026

An honest breakdown of monetisation models for multi-tool apps on Google Play and the App Store.

Ready to Build?

Have an app idea?
Let's make it real.

We take ideas from concept to shipped product. Tell us what you're building and we'll tell you how we can help.

Start a Conversation See Our Work
Contact

Let's build something
worth using

Whether you have a project brief, a half-baked idea, or a question about our work — we are happy to talk. Expect a reply within 24 hours.

Email

hello@appfonix.com

Based in

Kuala Lumpur, Malaysia

Response time

Within 24 hours