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Expense Tracker Progressive Web App with Offline Sync

Approx. component budget: Rs. 0 - 1,000

Objective

Make an app that is reliable on poor networks and handles conflicts when the same data changes on two devices.

What you will build

An installable app to record expenses, set budgets and see charts, which keeps working without internet and syncs when the connection returns.

Results you can expect

• Offline use for all core functions
• Correct sync of 100 queued entries
• Conflict resolution test
• Install and load time on a mid-range phone
• And a Lighthouse PWA score

What you will learn

Service workers, IndexedDB, sync strategies, conflict handling, and responsive design.

Tools and notes

JavaScript or React, Workbox, IndexedDB, Firebase or a small Node.js backend, Chart.js.

Resume points from this project

• Built and tested Expense Tracker Progressive Web App with Offline Sync; objective: make an app that is reliable on poor networks and handles conflicts when the same data changes on two devices.
• Measured and analysed offline use for all core functions and correct sync of 100 queued entries; wrote the report and presented the results in a viva. Add your own numbers: [x].

Replace [x] with your own measured results. Write only what you really did.

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