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Budget AI

AI MONEY COACHAn expense tracker with an AI coach that roasts your spending

An AI-powered expense tracker and personal money coach. Automatic transaction categorization, shared wallets with split and collab modes, savings goals, subscription tracking — and a Gemini-powered coach that roasts your spending habits daily.

React NativeGeminiAWSMongoDB
Budget AI — OVERVIEWOVERVIEW
Budget AI — AI COACHAI COACH
Budget AI — TRACKINGTRACKING
Budget AI — COLLAB MODECOLLAB MODE
Budget AI — GOALSGOALS
Budget AI — SUBSCRIPTIONSSUBSCRIPTIONS
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Project Overview

// THE PROBLEM

Budgeting apps fail because they feel like homework: manual entry is tedious, couples and roommates struggle to track shared spending, and insights arrive as dry charts long after the money is gone.

// THE SOLUTION

Budget AI pairs a React Native app with a Gemini-powered money coach. Transactions are categorized automatically, wallets can be shared with split and collab modes, and the coach delivers daily forecasts and roasts funny enough that users actually come back.

// THE IMPACT

Launched on iOS and Android in 2026 with a 5.0 App Store rating. The roast-style notifications turn expense tracking from a chore into a daily habit, and users have tracked over US$1M in savings.

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By The Numbers

0
App Store Rating
2026
US$1M+
User Savings
Tracked in-app
0
Coach Personalities
Playful to Strict
iOS + Android
Platforms
One React Native codebase
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App Preview

Budget AI — WALLET OVERVIEW

WALLET OVERVIEW

Total balance, income vs expense, and AI nudges at a glance

Budget AI — ONBOARDING QUIZ

ONBOARDING QUIZ

A quick quiz personalizes your money coach

Budget AI — AI PROFILE SETUP

AI PROFILE SETUP

Gemini builds your personal money brain

Budget AI — QUICK ENTRY

QUICK ENTRY

Log expenses, income, and savings in seconds

Budget AI — SMART CATEGORIES

SMART CATEGORIES

Rich category system with custom additions

Budget AI — AI COACH CHAT

AI COACH CHAT

Ask for a roast — or a savings plan

Budget AI — COLLAB MODE

COLLAB MODE

Shared wallets show who paid for what

Budget AI — GOAL MODE

GOAL MODE

Savings goals with progress rings and AI nudges

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Core Features

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AI MONEY COACH

A Gemini-powered coach that chats, forecasts, and roasts your spending habits — in a tone you choose, from motivational to strict.

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EFFORTLESS TRACKING

Quick keypad entry, automatic categorization, receipt scanning, and multi-currency support keep every dollar logged with zero friction.

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SPLIT & COLLAB MODES

Shared wallets for couples, families, and roommates — split individual bills or manage a household budget together.

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GOAL MODE

Emoji-tagged savings goals with deadlines, progress rings, and AI nudges that push you over the line.

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SUBSCRIPTION TRACKING

Recurring bills and subscriptions tracked with renewal countdowns, so nothing sneaks through unnoticed.

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PRIVACY & CONTROL

One-tap privacy mode hides balances, and monthly statements export to simple files anytime.

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User Flow

ONBOARDING FLOW

  1. 1Sign in with email
  2. 2Quick quiz on goals and habits
  3. 3AI builds your personal money profile
  4. 4Enable notifications for daily roasts

DAILY TRACKING FLOW

  1. 1Add a transaction on the quick keypad
  2. 2Category is suggested automatically
  3. 3Overview updates balance and forecasts
  4. 4Coach reacts with nudges or roasts

SHARED WALLET FLOW

  1. 1Create or join a shared wallet
  2. 2Toggle split mode on a transaction
  3. 3Collab mode shows who paid what
  4. 4Settle up and hit shared goals
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Screenshot Gallery

Budget AI — SUBSCRIPTIONS

SUBSCRIPTIONS

Recurring bills with renewal countdowns

Budget AI — PRIVACY MODE

PRIVACY MODE

Hide balances with one tap

Budget AI — MULTIPLE WALLETS

MULTIPLE WALLETS

Switch between personal and shared wallets

Budget AI — COACH PERSONALITY

COACH PERSONALITY

Pick your coach's tone — fun, neutral, or strict

Budget AI — DATA EXPORT

DATA EXPORT

Monthly statements exported anytime

Budget AI — PREMIUM

PREMIUM

Receipt scanning, shared budgets, and advanced coaching

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Architecture & Technical Highlights

The system pairs a React Native app (iOS + Android) with an AWS-hosted backend and MongoDB, while Google's Gemini powers the coach — categorization, forecasts, and personality-driven roasts.

  • A single React Native codebase ships native-feeling apps on both iOS and Android.
  • Gemini generates coach conversations, daily spending roasts, and smart forecasts, and drives automatic transaction categorization.
  • The AWS backend serves the API and schedules the daily notification pipeline that delivers roasts to the lock screen.
  • MongoDB's flexible document model stores wallets, transactions, goals, subscriptions, and coach conversation history.
  • Shared wallets sync across members so split and collab modes always show a consistent picture.
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Technology Stack

React Native - Cross-Platform Mobile Framework
REACT NATIVECross-Platform App
Google Gemini - AI Models
GOOGLE GEMINIAI Money Coach
Amazon Web Services - Cloud Platform
AWSBackend & Notifications
MongoDB - Document Database
MONGODBDocument Database
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Frequently Asked Questions

The coach. Instead of dry charts, a Gemini-powered AI reacts to your spending with daily forecasts and playful roasts — 'HK$58 for a cold brew? Your future self is drinking tap water.' Accountability with a sense of humor keeps users coming back.

An onboarding quiz captures your goals and habits, and Gemini builds a personal money profile from them. The coach then chats on demand, sends weekly advice, and nudges you when spending drifts — in one of four personalities, from Motivational to Strict & Disciplined.

Yes. Shared wallets support split mode for dividing individual bills and collab mode for managing a household budget together, with every member's contributions visible in the activity feed.

Budget AI is built with React Native and ships from a single codebase to both the App Store (iOS 15.1+) and Google Play.

Data lives in a MongoDB database behind an AWS-hosted API. In the app, privacy mode hides balances from shoulder-surfers with one tap, and your complete history can be exported to simple files anytime.
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Download Budget AI

Track, forecast, and get roasted. Free on iOS and Android, with an optional Premium subscription.

Download on the App StoreiOS · APP STORE
Get it on Google PlayANDROID · GOOGLE PLAY