Polishing, Testing, and Shipping to Both Stores
Write unit tests for core hooks, add a Maestro E2E flow for the critical path, optimize the bundle, generate store assets, and submit to both the App Store and Google Play.
The Final Stretch: Polish, Test, Ship
The last phase of any app project is the most discipline-intensive: polishing the rough edges users will actually notice, writing tests that catch regressions before they reach production, and executing the submission process for both stores. Each of these feels like it should be quick but takes as long as the feature work — budget time accordingly. A well-polished app with proper test coverage ships with confidence.
UI Polish: Consistent Spacing and Typography
Polish starts with design tokens — a single source of truth for spacing, font sizes, font weights, border radii, and colors. Define these in a theme.ts file and import them everywhere instead of hard-coding padding: 16 scattered across screens. Consistency is what makes an app feel premium — when all buttons have the same height, all headings use the same font, and all cards have the same shadow, the UI feels intentional.
// src/theme.ts
export const theme = {
colors: {
primary: '#007AFF',
background: '#F2F2F7',
surface: '#FFFFFF',
text: '#000000',
textSecondary: '#8E8E93',
error: '#FF3B30',
success: '#34C759',
},
spacing: {
xs: 4, sm: 8, md: 16, lg: 24, xl: 32
},
typography: {
largeTitle: { fontSize: 34, fontWeight: '700' },
title: { fontSize: 22, fontWeight: '600' },
body: { fontSize: 17, fontWeight: '400' },
caption: { fontSize: 12, fontWeight: '400' },
},
borderRadius: { sm: 8, md: 12, lg: 16, full: 999 },
};All lessons in this course
- Planning Architecture and Tech Stack
- Authentication Flow and Protected Routes
- Core Feature: Data Feed with Offline Support
- Polishing, Testing, and Shipping to Both Stores