Twin

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An investing and day-trading companion that replays 10,000 futures before you risk a dollar — matched to your personality.

• Personality test — 10 questions score your risk tolerance (1–5) and investor-vs-trader style, pick one of four types and set your guard-rails (max loss per trade, daily stop, reward:risk).
• Goal planner — 10,000 simulated futures for your funds, monthly contributions and goal, built from real monthly total-return history (block bootstrap). Warns when history is too short to be honest.
• Paper trading — fractional practice trades at real delayed prices, with a portfolio chart (Robinhood / Webull style).
• Copy a famous investor — reads a fund's latest SEC 13F (Buffett, Burry, Ackman…), shows what changed, copies it into your practice portfolio (eToro style, from public filings).
• Day-trade checklist — entry → exit → Time Machine (10,000 replays + history) → size → risk → ticket, powered by the open-source day-trader-skill.
• News feed, watchlist with sparklines, a built-in guide and help on every screen.