SAVR - Tyre Pressure Monitoring System

A cross-platform mobile app that connects to BLE tyre pressure sensors - designed, built, and submitted to both app stores from design to production-ready deployment.

Role

Designer & Developer

Company

SAVR

Platform

iOS & Android · Flutter

Date

August 2026

OVERVIEW

Real-time tyre health

SAVR is a mobile application that connects to tyre pressure monitoring sensors via Bluetooth Low Energy (BLE), giving drivers real-time visibility and control over their vehicle’s tyre health. Built as a complete product from concept to store submission, the app delivers a seamless native experience on both iOS and Android.

Before submission, I ran user testing through Firebase App Distribution - distributing builds to iOS and Android testers to validate BLE pairing, live sensor readability, and core flows on real devices before App Store and Play Store review.

THE CHALLENGE

Drivers lack real-time visibility into tyre health

Tyre pressure affects safety, fuel efficiency, and wear - but most drivers only check manually, if at all. Without live sensor data on a device they already carry, small pressure issues go unnoticed until they become costly or dangerous.

WHAT I DID

What I owned

The entire product end-to-end as sole designer and developer - discovery, UX/UI, prototyping, Flutter development, and store submission for both iOS and Android.

What I delivered

Full product discovery, user flows, wireframes, and high-fidelity UI
Interactive prototypes prioritising clarity, safety, and live sensor readability
User testing via Firebase App Distribution - iOS and Android builds with real testers
Complete Flutter app - single codebase, native iOS and Android builds
BLE connectivity, real-time data handling, and state management
Platform-specific polish and behaviours on both operating systems
App Store and Google Play submission

IMPACT

One person, full stack, both stores

2

Platforms · iOS & Android

1

Flutter codebase

BLE

Real-time sensor connectivity

2

Store submissions

KEY INSIGHT

Monitoring live sensor data is a safety-critical interface - every screen had to prioritise clarity and calm over feature density. When the data is physical and immediate, confusing UI isn’t just bad UX; it’s a trust problem.

HOW

Process in brief

Product discovery and user flows - mapped how drivers connect, monitor, and respond to sensor data
Wireframes to high-fidelity UI and interactive prototypes for every core screen
User testing via Firebase App Distribution - feedback from iOS and Android testers on real hardware
Built in Flutter - BLE pairing, real-time updates, state management, platform-native behaviour
Prepared and submitted to Apple App Store and Google Play Store

TAKEAWAY

Design for scalability from day one

Owning both sides removed handoff loss - UX decisions stayed tied to technical constraints like BLE reliability and real-time updates. Flutter made cross-platform delivery viable for a solo builder without compromising native feel on either store.

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