Arc One

A personal finance app for iOS to track stocks and cryptocurrency portfolios with real-time market data.

Features

• Portfolio: Track stock holdings with real-time quotes and interactive charts (1D/1W/1M/1Y)
• Crypto: Track 15+ cryptocurrencies with CoinGecko integration
• Analytics: Combined net worth, asset allocation, and top holdings breakdown
• Authentication: Email/password, Google Sign-In, and Face ID
• Profile: User settings and account management

Architecture

Feature-based modular architecture with MVVM pattern:

Features/
├── Authentication/   # Login, signup, biometrics
├── Portfolio/        # Stock tracking, charts, market data
├── Crypto/           # Cryptocurrency tracking
├── Analytics/        # Combined portfolio analytics
└── Profile/          # User profile and settings

Each feature contains:

• UI/ - View controllers and cells
• Models/ - DTOs and ViewModels
• Services/ - API and Firebase integration
• Presentation/ - Data sources and coordinators

Firestore Collections

users/{uid}/
├── holdings/              # Stock investments
├── crypto_holdings/       # Crypto investments
├── snapshots/             # Daily stock portfolio values
├── crypto_snapshots/      # Daily crypto portfolio values
├── intraday_points/       # Stock intraday tracking
└── crypto_intraday_points/# Crypto intraday tracking

Tech Stack

Category	Technology
UI	UIKit, Storyboards, DGCharts
Backend	Firebase Auth, Firestore, Storage
Stock Data	Finnhub API
Crypto Data	CoinGecko API
Auth	Google Sign-In, Face ID

Screenshots

Portfolio	Crypto	Analytics	Profile

Authors

Felipe Trejos and Paul Adrian Pupaza