Case Study: Québec TPS TVQ Calculator App

Platform

iOS (iPhone & iPad)

Services

iOS Development, UI/UX Design, Financial Utility

Goal

Create a fast, ad-free, and private tax calculation utility

The Challenge

Most utility apps on the market are cluttered with intrusive ads, have confusing interfaces, and often raise concerns about data privacy. The challenge was to design and develop a tax calculator specifically for Quebec that defies this norm. Our goal was to create the absolute simplest, fastest, and most trustworthy tool for daily calculations, prioritizing user experience and privacy above all else.

Our Strategic Solution

We adopted a user-first philosophy focused on speed, accuracy, and a distraction-free environment. The business model itself became a key feature, reinforcing the app's premium quality and respect for the user.

Ad-Free, One-Time Purchase: We eliminated all ads and subscriptions in favor of a single, affordable one-time purchase for lifetime access, guaranteeing a clean user experience.
All-in-One Functionality: The interface was designed to seamlessly combine tax calculation, tip calculation, and bill splitting into a single, intuitive workflow without unnecessary screens.
Privacy by Design: We engineered the app to perform all calculations locally on the device, ensuring no personal or financial data is ever collected or transmitted.

A screenshot of the main interface of the Québec TPS TVQ Calculator app.

Key Features

The app is built around a core set of features designed for speed and convenience in everyday situations.

Calculate GST/QST Ad-Free

Instantly and accurately calculate provincial and federal sales tax in a completely ad-free environment.

Feature: Calculate Tips & Split The Bill Effortlessly.

Tips & Bill Splitting

Effortlessly calculate tips based on percentages or a custom amount, and divide the total bill among multiple people.

Share Calculations

Use the native iOS share sheet to send calculation details to friends or colleagues through any app.

Feature: Clear, pre-formatted sharing text.

Clear Calculation Details

When sharing, the app generates a clean, pre-formatted text breakdown of the bill, perfect for iMessage or email.

The Result

The Québec TPS TVQ Calculator has become a go-to utility for residents by delivering on its core promise: to be the simplest, most respectful, and ad-free calculator on the App Store. Its success proves that a user-centric design philosophy, combined with a fair pricing model, can create a highly-rated and trusted mobile application that users are happy to pay for.

View on the App Store The official app icon for the Québec TPS TVQ Calculator