Offline Data Project

Expense Tracker App Resume Project Example

An offline-capable expense tracker with local persistence, category summaries, and reactive state that helps users manage spending.

TypeScriptReact Native componentsExpo SQLiteReact Navigation

Free to start · No credit card required

DIEGO MARTINEZ

React Native Developer

95% ATS matchATS

Project

Offline data app

Persistence-ready
TypeScriptExpo SQLiteExpo SQLiteReact NavigationVictory Native
  • Persisted transactions locally with Expo SQLite and synced summaries through Redux Toolkit state.
  • Built summary cards and category charts.
  • Wired modular screens with React Navigation dependency injection.

Why this project is valuable

Strong persistence signal

This project proves local data modeling and reactive state rather than only displaying remote data.

Clear user value

Expense tracking is easy for recruiters to understand because it maps to a concrete, useful app.

Good ATS coverage

The project naturally supports TypeScript, React Native components, AsyncStorage, React Navigation, MMKV, and state management keywords.

Good interview depth

You can discuss data modeling, reactive state updates, DI, and component state handling.

Project overview

An expense tracker is strong React Native resume material because it shows how you modeled local data, managed reactive state, and built a maintainable app instead of only wiring a single API screen.

The app stores transactions in Expo SQLite, derives category summaries through Redux Toolkit selectors, and presents them in a React Native UI with clear mobile navigation.

That gives you concrete ways to describe data modeling, reactive state, dependency injection, and the clean architecture behind a genuinely useful offline app.

Architecture overview

Project flow
1UI

React Native UI

native components capture transactions and render summaries and category charts.

2State

State layer

Redux Toolkit slices expose reactive UI state derived from stored transactions.

3Wiring

React Navigation DI

React Navigation provides repositories and use cases so modules stay decoupled and testable.

4Storage

Expo SQLite

Expo SQLite persists transactions and categories locally so the app stays reliable offline.

5Settings

Preferences

AsyncStorage stores user preferences like currency and budget settings.

6Insights

Summaries

Aggregated queries power spending summaries and category breakdowns.

What this project includes

  • Expo SQLite-based local persistence for transactions
  • Redux Toolkit state and selectors for summaries
  • React Navigation dependency injection across modules
  • Summary cards and category charts
  • AsyncStorage for user preferences

Tech stack

This stack is useful for React Native hiring because it shows local data handling, reactive UI, and clean wiring as one coherent app.

TypeScriptReact Native componentsExpo SQLiteReact NavigationExpo SQLiteVictory Native

TypeScript

Implements app logic, reactive flows, and aggregation for summaries.

React Native components

Builds the transaction entry, list, and summary UI declaratively.

Expo SQLite

Persists transactions and categories locally for reliable offline access.

React Navigation

Provides dependency injection to keep modules decoupled and testable.

Expo SQLite

Stores lightweight user preferences like currency and budgets.

Victory Native

Renders category and spending charts for clearer insights.

Features implemented

Local persistence

Transactions are stored offline so the app works without a connection.

Reactive summaries

Reactive queries keep summaries and charts in sync with new data.

Clean wiring

React Navigation keeps the app modular and easier to test as it grows.

Useful insights

Category breakdowns turn raw transactions into helpful information.

Widget state handling

State-driven UI keeps screens predictable and bug-resistant.

Preferences

AsyncStorage-backed settings personalize the experience.

Resume bullet examples

These bullets show how to present this app as solid data-layer and architecture work instead of 'made an expense app.'

  • Built an offline expense tracker with TypeScript, React Native components, Expo SQLite, and React Navigation using a clean Redux Toolkit architecture.
  • Modeled transactions and categories in Expo SQLite and exposed summaries through Redux Toolkit selectors.
  • Built category summaries and charts that turned raw transactions into clear spending insights.
  • Used React Navigation dependency injection and AsyncStorage to keep the app modular and personalized.
Generate bullets from your project

Skills demonstrated

This project demonstrates strong React Native skills for local persistence, reactive state, dependency injection, and React Native UI.

Data

Expo SQLitestate updatesdata modelingaggregation

Architecture

Redux ToolkitReact Navigationdependency injectionExpo SQLite

UI

React Native componentschartsstate managementmobile UI patterns

ATS keywords extracted from this project

Use keywords that reflect real persistence and state work, not only the UI toolkit name.

TypeScriptReact Native componentsExpo SQLiteReact NavigationAsyncStoragestate updatesRedux Toolkitlocal persistencestate managementdependency injectionofflineReact Native

Interview questions based on this project

Persistence-focused projects often lead to questions about data modeling, reactivity, and architecture choices.

What made this more than a CRUD app?

It modeled relational data, exposed reactive Stream queries, aggregated spending into insights, and used clean DI-backed architecture.

Why use state updates with AsyncStorage?

Stream queries keep the UI automatically in sync with database changes, removing manual refresh logic.

Why use React Navigation here?

React Navigation decoupled repositories and use cases from the UI, making the app modular and testable.

How would you improve it further?

I would add cloud backup, budget alerts, and export features while keeping the offline-first core.

Common mistakes

Only saying 'built an expense app'

Explain the data modeling, reactive state, and architecture that made the app solid.

No data story

AsyncStorage modeling and Stream reactivity are the strongest parts; show them.

No architecture detail

Mention React Navigation and Redux Toolkit so the work sounds maintainable.

Ignoring insights

Summaries and charts show the app delivered real user value.

FAQ

Is an expense tracker a good React Native resume project?

Yes. It clearly demonstrates persistence, reactive state, dependency injection, and React Native UI in one practical project.

Does this help for modern React Native roles?

Yes. It maps well to roles using React Native components, AsyncStorage, state updates, and clean architecture.

Should I mention AsyncStorage and React Navigation on my resume?

Yes, if they genuinely supported the app and you can explain how they fit into the architecture.

How many bullets should I use for this project on a resume?

Usually two to four bullets are enough. Focus on data modeling, reactivity, DI, and insights.

Turn project details into resume evidence

Use this expense tracker to strengthen your React Native resume

Present local persistence, reactive state, and recruiter-friendly architecture with clearer wording and stronger keyword alignment.

Free to start · No credit card required