暗号資産（仮想通貨）の家計簿 - コイン簿

SHIN-YU LLC.

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About this app

📊 Coin Book - Easily Manage Your Crypto Assets

"Coin Book" is a free app that allows you to centrally manage your crypto asset (virtual currency) trading history and portfolio, even if it's spread across multiple exchanges. It clearly displays the asset status of all crypto assets, including Bitcoin, Ethereum, and Ripple, by exchange and currency.

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✨ Main Features
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📈 Asset Summary
・Check your total assets at a glance
・Automatic P&L calculation
・Automatic price updates every 5 minutes
・Supports JPY/Stable Dollar conversion

💼 Portfolio Management
・Display a list of your holdings
・Asset breakdown by exchange and currency
・Compare current valuation with your investment
・Automatic P&L calculation

📊 Transaction History Management
・Record trading, transfers, and deposits/withdrawals
・Filter by exchange and currency
・Sorting by date and amount
・Edit and delete transactions

💾 Data Management
・Save and load files
・CSV export function
・Secure offline data storage

🎨 Customization
・Five theme colors (blue, green, yellow, red, purple)
・Dark mode support
・Easy-to-read interface

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🎯 Recommended for
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✓ Hold crypto assets on multiple exchanges
✓ Want to keep track of your total assets and profits and losses at a glance
✓ Want to record and manage your trading history
✓ Want to visually check your portfolio
✓ Want to consolidate your trading records for tax returns
✓ Are looking for a simple, easy-to-use management app

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💡 Exchanges (Examples)
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・Coincheck
・bitFlyer
・GMO Coin
・DMM Bitcoin
・bitbank
・Zaif
・Binance
・Bybit
・Supports input from all other exchanges

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🔒 Security and Privacy
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・No personal information is collected
・No exchange API key required
・Data is encrypted and stored
・Security rules prevent unauthorized access

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📱 How to Use
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1. Launch the app
2. Manually register your trading history
3. Automatically display asset summary and portfolio
4. Price updates every 5 minutes
5. CSV export and backup as needed

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🆓 Completely Free
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Coin Book is free to use. All features are available without restrictions.

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⚠️ Important Notes
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・This app does not have a trading function.
・There is no automatic synchronization with exchanges.
・You must manually enter your trading history.
・Price information is for reference only and may differ from actual exchange prices.
・Investment decisions are at your own risk.

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📞 Contact Us
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If you have any questions or inquiries, please feel free to contact us. Contact: [e-mail]

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📄 Privacy Policy
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https://shin-yu.net/coinbo/privacy.html

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[Developer/Operator]
Shin-yu LLC

[Recommended Age]
18 years and older (corresponding to the minimum age for use of the cryptocurrency exchange)

[Supported OS]
Android 7.0 or higher

Make cryptocurrency management simpler.
Visualize your assets with Coin Book.