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Bull Pen desktop beta

Put a strategy
to the test.

Choose the market. Develop strategies. Inspect the rules and results in one focused workspace.

Release 0.2.8 · Desktop beta

Choose the package for your computer. Both downloads include Python.

Research and paper simulation. No live broker orders.

Mac desktop

Bull Pen for Mac

Apple silicon · macOS 13 or later

Version
0.2.8 beta
Format
Application ZIP
Publisher
Signed and Apple notarized
Size
100.9 MB
Download for Mac Verify download

For M1 or newer Macs. An Intel Mac build is not included.

Windows desktop

Bull Pen for Windows

Windows 10 or 11 · Intel or AMD 64-bit

Version
0.2.8 beta
Format
Portable ZIP · Python included
Publisher
Unsigned beta
Size
81.9 MB
Download for Windows Verify download

Windows may show an unrecognized-publisher warning. Microsoft Edge WebView2 Runtime is required. Get WebView2.

GETTING STARTED

A few steps to your first run.

  1. 01

    Open the app

    On Mac, open the ZIP and drag MarketApp Pen into Applications. On Windows, choose Extract All and open MarketApp Pen.exe. Keep the extracted folder together.

  2. 02

    Link your account

    Choose Sign in in desktop Settings. On your phone, open Account and settings, then Account → Link a computer. Enter the code to load stock history from the server.

  3. 03

    Start a run

    Choose New run, set your market and dates, then start. Review the strategies in Traders and test selected versions in Validation.

GOOD TO KNOW

Clear rules.
Visible results.

The Trade Den phone app is still preparing for launch. This page is for the Bull Pen desktop beta.

What can I do in Bull Pen?

Develop strategies against historical market data, inspect their rules, compare results, and replay selected versions over reserved validation dates.

Where does a run happen?

Runs can use your local computer. Optional cloud computer rentals have a separate charge, shown before you start a rental.

How do I keep my strategies?

Save and export trader files from the desktop app. Full trader files preserve the strategy for a later import; saved profiles and reports are available in Runs.