DecisionTwin

Learn From Every Decision

Only for iPhone

Free · In‑App Purchases · Designed for iPhone. Not verified for macOS.

iPhone

What if you had bought instead? Or held? Replay your investment decisions and watch three paths unfold from the day you made your choice. DecisionTwin helps you understand your investment decisions — not just your portfolio. Every investment decision creates a path you take, and paths you don't. DecisionTwin lets you record your decisions, replay what happened afterward, and explore what might have happened if you had bought, held, or sold instead. Replay Your Decisions Watch your investment decisions unfold over time. Replay the journey from the day you made a decision to today, and see how the Buy, Hold, and Sell paths evolved side by side. Record Decisions from the Past Your investment history doesn't have to start today. Create a decision using a historical date and see how the different paths would have played out from that moment onward. Record Your Decisions Capture the important moments behind your investments. Record what you decided, your position, and the reasoning behind the decision. Explore What-If Scenarios See how different choices could have played out over time. Compare the path you took with the alternatives you considered. Track Your Positions Keep track of your holdings and see how your investment decisions affect your portfolio over time. Review Past Decisions Markets move on, but your decisions remain worth reviewing. Look back at previous decisions, replay their outcomes, and reflect on the thinking behind them. Focus on the Decision, Not Just the Result A good decision doesn't always produce a good outcome, and a bad outcome doesn't necessarily mean the decision was wrong. DecisionTwin is designed to help you review the process behind your investment decisions. DecisionTwin is a personal decision-tracking and reflection tool. It does not provide financial advice or recommendations. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

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What's New New in this version: Decision Replay — Replay your investment journey from the day you made a decision to today, and watch the Buy, Hold, and Sell paths unfold over time. Historical Decisions — Create decisions using a past date to see how different choices would have played out from that moment. Simplified Position Management — A cleaner decision workflow without requiring a separate position setup. Keep making decisions. Then see where each path leads.

The developer, gaowen tan, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .

  • Data Not Linked to You

    The following data may be collected but it is not linked to your identity:

    • Identifiers
    • Usage Data
    • Diagnostics

Privacy practices may vary, for example, based on the features you use or your age. Learn More

The developer has not yet indicated which accessibility features this app supports. Learn More

Seller
  • gaowen tan
Size
  • 21 MB
Category
  • Finance
Compatibility
Requires iOS 17.0 or later.
  • iPhone
    Requires iOS 17.0 or later.
  • Mac
    Requires macOS 14.0 or later and a Mac with Apple M1 chip or later.
Languages
  • English and Simplified Chinese
Age Rating
13+
In-App Purchases
Yes
Copyright
  • © 2026 TiantangStudio