Earth Shack Software

Built for people who need
the picture to be clear

Local-first software designed to bring important information into focus — running on your computer, under your control. No subscription. No required Earth Shack account. Single HTML files that run in any modern browser.

Guardian — space weather and propagation dashboard
Guardian v1.0 · Dashboard preview
Local-first · One-time purchase · No required account · Windows · macOS · Linux · U.S. sales only
Explore Earth Shack Software

Purpose-built tools. Clear information. Your computer.

Start with the kind of information you want to understand. Each Earth Shack application stands on its own, while related products share a consistent local-first philosophy.

Software family
Situational Awareness

Earth, space, propagation, satellite, and operational context designed to stay visible when you want the larger picture at a glance.

Sentinel · Guardian Explore this family →
Software family
Personal Tools

Local-first applications for organizing, tracking, and understanding information that matters personally — without handing the working record to a subscription platform.

Vestrus · available now Meet Vestrus →
New at Earth Shack
Vestrus
Available
Local Portfolio Tracker

A comprehensive, private view of your portfolio on one local screen.

Vestrus is built for people who want to maintain their own portfolio record, see holdings, cash, transactions, charts, and longer-range direction together, and keep the working data on their own computer instead of inside an Earth Shack cloud account.

  • Holdings, cash, transactions, and portfolio history in one workspace
  • Manual-first tracking with optional user-supplied Finnhub and Tiingo market data
  • Asset charts, reports, Wealth Outlook, and reconciliation tools
  • JSON backup and restore for customer-controlled recovery and portability
Explore Vestrus → v1.0 · local-first · one-time purchase
Vestrus v1.0 Local Portfolio Tracker showing a fictional demonstration portfolio with holdings, charts, sector views, news, portfolio value, and gain/loss analysis
Vestrus v1.0 · Portfolio workspace Fictional demonstration portfolio · No customer financial data shown
The Earth Shack Approach
Independent tools.
One Earth Shack ecosystem.

Each product is designed to stand on its own. As the catalog grows, related tools can complement one another while preserving the same local-first approach — run by you, on your machine, with your working data under your control.

✦
The catalog will grow deliberately.

New Earth Shack products will be introduced as they complete their own feature and testing cycles, rather than arriving all at once. Product updates are included for one year from purchase within the purchased version track.

Learn about our update policy →
🛡️Safety First
🎯Accuracy
👁️Transparency
🔒Privacy
⚡Performance
⚖️Accountability
✅User Focused
Start Today

Start with the tool that fits what matters to you.

No subscription. No required Earth Shack account. No installation. Download the application, open it in a modern browser, and keep control of the working record.

Explore Vestrus → Explore Situational Awareness → Have questions?

U.S. sales only · One-time purchase · Instant download · Free updates for 1 year