1. [Key Points] Preventing Brainless Trading: Record Buy and Sell Reasons ✍️
"Trading without recording is like gambling." Investment success or failure lies not in technique, but in the "reasons for your decisions." Vividly record your confidence when pressing the buy button and your judgment when selling. Clear reasons are your greatest asset, reducing mistakes and increasing your winning percentage.

2. [UI/UX] Investment History on a Single Screen 📱
Without navigating complex menus, select a specific stock and all your trading history and reasons will appear on a single screen, like a timeline. Instantly answer the question, "Why did I buy it then?" and discover today's answers from your past self.

3. [Analysis] Precise P&L Analysis and Smart Stop-loss Response 📈
Separate your holdings from your selling positions to objectively assess your current asset status. In particular, the "Smart Stop-loss Price," which analyzes recent highs and purchase prices and provides recommendations, helps you respond mechanically, free from emotion, and prevents catastrophic losses.

4. [Management] Investment Control Tower: Integrated Management of Operations and History 📊
Intuitively understand the real-time status of your holdings through color-coded displays, and develop tomorrow's strategy with a report card showing completed sales. We gather scattered records across multiple accounts to calculate your "true total return."

5. [Strategy] Lucky 7 Account System 🍀
Separate your assets by investment style. Up to seven independent account tabs, including long-term investments, short-term trading, and IPOs, enable strategic asset management. (The free version includes two accounts.)

6. [Convenience] Smart Stock Search and Current Price Update 🔍
No need to manually enter stock names. Register stocks with a quick search and accurately update the value of your assets based on real-time market prices.

7. [Tool] Sure-Winning Aid: Investment Decision Calculator 🧮
Arm yourself with a water-tapping calculator that predicts the average price fluctuations when additional purchases are made, and a stop-loss logic for risk management. Our thorough calculations will solidify your investments.

8. [Security] Data Backup and Custom Settings 💾
Keep your precious records safe by exporting/importing CSV files. Customization is also supported, allowing you to choose the screen you want to see first when the app starts.

"This app is a paid version with all features available without restrictions, but a small banner ad is included at the bottom to support ongoing development."