How to Create a Time Tracking App That Tracks Long Hours & Productivity in React Native? (Code + GitHub)

Time tracking apps have become a necessity for every remote team, freelancer, and growing business.

With hybrid work models & flexible schedules becoming the new normal, companies need smarter ways to monitor long hours, manage productivity, & analyze performance.

Companies using time tracking tools report a 30% increase in overall productivity.

Instead of building separate apps for Android and iOS, you can use a single codebase to develop a time tracking app in React Native that runs smoothly on both platforms.

It’s fast, cost-effective, and ideal for building modern productivity tracking apps with intuitive UI and real-time analytics.

In this blog, you’ll learn how to create a complete time tracking app that tracks long hours, monitors productivity stats, and syncs data smoothly.

How to Make a Great Time Tracking App?

Let’s see what makes a great time tracking app truly effective.

Popular tools like Clockify, Toggl, and RescueTime all share certain core features; they help users focus, log hours, and visualize productivity trends effortlessly.

A solid React Native productivity tracker should include:

• Simple time logging: Users can start, pause, or stop tracking work sessions easily.
• Break and idle detection: The app should identify downtime automatically.
• Performance insights: Weekly and monthly reports to show productivity patterns.

Tracking long hours and break times matters because it gives individuals and teams visibility into how they spend their day, which means better focus, work-life balance, and smarter scheduling decisions.

From a technical perspective, React Native offers outstanding performance and UI consistency across devices.

It’s perfect for building long-hour time tracker apps that handle background tasks, real-time updates, and local data storage without lag.

Which Tools & Technologies You’ll Need Before You Start?

React Native provides deeper integration with existing JavaScript and web tech stacks, making it easier for JS developers to jump in and start fast.

Here’s the important stack for your React Native time tracking app tutorial for everyone:

• React Native CLI or Expo: To bootstrap and manage your app.
• Node.js & npm: For dependencies and backend setup.
• Visual Studio Code or Android Studio: For smooth development and debugging.
• Firebase: Handles authentication, real-time data, and cloud storage.
• AsyncStorage or SQLite: For local data storage when offline.

This combination ensures a cross-platform, high-performance, and secure foundation for your time tracker app.

What Are the Must-Have Features for Your React Native Time Tracking App?

Explore the features that make your React Native time tracking app stand out, both for users and for businesses.

• Track Working Hours (Manual & Auto Start): Allow users to start, pause, and stop timers or automatically track when work begins.
• Productivity Statistics: Display visual analytics using Recharts or Victory Native for an interactive dashboard.
• Reminders & Notifications: Notify users to start tracking or take breaks.
• Cloud Sync: Store time logs in Firebase or through a custom REST API.
• User Authentication: Add login via Email, Google, or Apple.
• Dashboard Insights: Show daily, weekly, and monthly reports to monitor performance trends.

These features will help your app track work hours in React Native with precision & give users valuable insights to turn it into a fully functional productivity tracking app.

Step-by-Step Guide to Build a Time Tracking App

Here you will learn about building the Time Tracking App in React Native.

You get everything you need to create your own time tracking React Native app that records working hours and productivity insights.

Step 1: Initialize a New React Native Project

Open your terminal and run the following commands to create a new project using Expo or React Native CLI:

        
            npx react-native init TimeTrackerApp
            cd TimeTrackerApp
            npm install
        
    

Or, if you prefer Expo, run:

        
            npx create-expo-app time-tracking-app
            cd time-tracking-app

        
    

Now, start your development server:

        
            npm start
        
    

This sets up the foundation for your React Native time tracking app.

Step 2: Build Core Components like Timer, Task List & Analytics

Let’s create the main screens that make your time tracking app in React Native functional and dynamic.

Folder Structure:

/components
├── Timer.js
├── TaskList.js
└── Analytics.js
/App.js

Timer Component (Timer.js)

Tracks working sessions and breaks in real-time.

        
            import React, { useState, useEffect } from 'react';
            import { View, Text, Button, StyleSheet } from 'react-native';
            
            const Timer = () => {
            const [seconds, setSeconds] = useState(0);
            const [isRunning, setIsRunning] = useState(false);
            
            useEffect(() => {
                let interval;
                if (isRunning) {
                interval = setInterval(() => setSeconds((prev) => prev + 1), 1000);
                } else {
                clearInterval(interval);
                }
                return () => clearInterval(interval);
            }, [isRunning]);
            
            return (
                <View style={styles.container}>
                <Text style={styles.time}>{seconds}s</Text>
                <View style={styles.buttons}>
                    <Button title={isRunning ? "Pause" : "Start"} onPress={() => setIsRunning(!isRunning)} />
                    <Button title="Reset" onPress={() => setSeconds(0)} />
                </View>
                </View>
            );
            };
            
            const styles = StyleSheet.create({
            container: { alignItems: 'center', marginTop: 40 },
            time: { fontSize: 40, fontWeight: 'bold' },
            buttons: { flexDirection: 'row', gap: 10, marginTop: 20 }
            });
            
            export default Timer;

        
    

Task List Component (TaskList.js)

Display and manage user tasks along with tracked time.

        
            import React, { useState } from 'react';
            import { View, TextInput, Button, FlatList, Text, StyleSheet } from 'react-native';
            
            const TaskList = () => {
            const [task, setTask] = useState('');
            const [tasks, setTasks] = useState([]);
            
            const addTask = () => {
                if (task.trim()) {
                setTasks([...tasks, { id: Date.now().toString(), title: task }]);
                setTask('');
                }
            };
            
            return (
                <View style={styles.container}>
                <TextInput
                    placeholder="Enter Task"
                    value={task}
                    onChangeText={setTask}
                    style={styles.input}
                />
                <Button title="Add Task" onPress={addTask} />
                <FlatList
                    data={tasks}
                    renderItem={({ item }) => <Text style={styles.task}>{item.title}</Text>}
                    keyExtractor={(item) => item.id}
                />
                </View>
            );
            };
            
            const styles = StyleSheet.create({
            container: { padding: 20 },
            input: { borderBottomWidth: 1, marginBottom: 10 },
            task: { padding: 8, fontSize: 16 }
            });
            
            export default TaskList;
        
    

Step 3: Connect to Firebase for Data Persistence

To save tracked time and tasks in the cloud, set up Firebase.

Go to Firebase Console, create a project, and get your config.

Install Firebase in your project:

        
            npm install firebase
        
    

Create a file named firebaseConfig.js:

        
            import { initializeApp } from "firebase/app";
            import { getFirestore } from "firebase/firestore";
            
            const firebaseConfig = {
            apiKey: "YOUR_API_KEY",
            authDomain: "YOUR_DOMAIN",
            projectId: "YOUR_PROJECT_ID",
            storageBucket: "YOUR_BUCKET",
            messagingSenderId: "YOUR_SENDER_ID",
            appId: "YOUR_APP_ID",
            };
            
            const app = initializeApp(firebaseConfig);
            export const db = getFirestore(app);

        
    

You can now use Firestore to store user sessions, tasks, and productivity stats.

Step 4: Implement Productivity Charts (Recharts or Victory Native)

To visualize time usage, install Victory Native:

        
            npm install victory-native react-native-svg
        
    

Analytics.js

        
            import React from 'react';
            import { VictoryPie } from 'victory-native';
            import { View, Text } from 'react-native';
            
            const Analytics = () => {
            const data = [
                { x: "Work", y: 70 },
                { x: "Break", y: 30 },
            ];
            
            return (
                <View style={{ alignItems: 'center', marginTop: 40 }}>
                <Text style={{ fontSize: 18, fontWeight: 'bold' }}>Productivity Stats</Text>
                <VictoryPie
                    data={data}
                    colorScale={["#4CAF50", "#FFC107"]}
                    innerRadius={50}
                    animate={{ duration: 1000 }}
                />
                </View>
            );
            };
            
            export default Analytics;

        
    

How to Add Productivity Insights & Analytics in Your Time Tracking App?

Let’s take your productivity tracking app in React Native to the next level by adding daily, weekly, and monthly productivity stats.

Step 1: Calculate Daily/Weekly/Monthly Productivity

You can calculate productivity by comparing “productive hours” vs “total logged hours.”

        
            const calculateProductivity = (sessions) => {
            const total = sessions.reduce((sum, s) => sum + s.totalHours, 0);
            const productive = sessions.reduce((sum, s) => sum + s.productiveHours, 0);
            return ((productive / total) * 100).toFixed(1);
            };
        
    

Display it with a progress bar:

        
            import * as Progress from 'react-native-progress';
            import { View, Text } from 'react-native';
            
            const ProductivityStats = ({ percentage }) => (
            <View style={{ alignItems: 'center', marginTop: 30 }}>
                <Text>Weekly Productivity: {percentage}%</Text>
                <Progress.Bar progress={percentage / 100} width={200} />
            </View>
            );

        
    

Step 2: Add a Smart AI/ML Twist

You can integrate AI to suggest “smart productivity predictions”, like when the user is most focused or when breaks help improve performance.

A simple starting point:

• Track peak productivity hours using time logs.
• Suggest best working intervals using data trends.

For example:

        
            const suggestBestHours = (sessions) => {
            const hours = sessions.map(s => s.hour);
            const mostCommon = hours.sort((a, b) =>
                hours.filter(v => v === a).length - hours.filter(v => v === b).length
            ).pop();
            return `Your most productive hour is around ${mostCommon}:00.`;
            };
        
    

Integrating smart recommendations will make your React Native productivity tracker stand out from competitors.

Step 3: Visualize Everything with Charts

Visual data is powerful. Using Victory Native or Recharts, show weekly performance and trends over time.

        
            import { VictoryBar, VictoryChart, VictoryTheme } from "victory-native";

           <VictoryChart theme={VictoryTheme.material}>
           <VictoryBar
                data={[
                { day: "Mon", hours: 6 },
                { day: "Tue", hours: 8 },
                { day: "Wed", hours: 7 },
                { day: "Thu", hours: 5 },
                { day: "Fri", hours: 9 },
                ]}
                x="day"
                y="hours"
            />
           </VictoryChart>

        
    

Here’s the GitHub Code to Build a Time Tracking App in React Native.

Our Expertise in Building React Native Apps

We specialize in creating React Native apps that help businesses scale smarter.

Our team of experienced developers and UI/UX designers has built apps that are trusted by enterprises and startups alike.

• Expertise in Cross-Platform App Development: Build once, run everywhere without compromising performance.
• Proven Success in Time Tracking & Productivity Analytics: Real-world apps with advanced analytics and intuitive dashboards.
• Strong UI/UX & Backend Integration: We design apps that are functional, fast, and visually appealing.
• End-to-End Development:From concept to design, coding, testing, and deployment.

Want a Scalable React Native App? Contact Us Now!

Build Smarter, Track Better

Now you can create a React Native time tracker app that records long hours, calculates productivity stats, & syncs smoothly with Firebase, all backed by clean, open-source code.

If you want a custom solution, this blog helps you build smarter and track better.