Zero-API Tracking. Total Control.

From basic cost-basis tracking to advanced backtesting, choose the analytical depth you need without compromising privacy.

Local Browser Tracking

Pro Export Analytics

Custom Simulation Backtester

Monitor cost basis, unrealized gains, and portfolio value directly in your browser. Fully private, no cloud storage.

Generate detailed CSV reports for tax calculations and deeper analysis. Integrate with your preferred local tools.

Test dollar-cost averaging strategies and volatility scenarios against historical data. Understand risk before commitment.

Your Security, Answered

Do you require API keys?

Where is my data stored?

How accurate are the metrics?

Is there a subscription cost?

No. Sovereign Basis operates entirely client-side. We never ask for exchange API keys, wallet connections, or personal identifiers.

All your portfolio data is stored locally in your browser's encrypted storage. You maintain full control and ownership.

We use real-time price feeds for current valuations. Cost basis and simulations rely on your manual inputs for precision.

Core tracking features are completely free. Advanced export and simulation tools are available via one-time purchases, not subscriptions.

Deploy Your Local Analytics

Experience privacy-first Bitcoin portfolio tracking without compromise. Secure, transparent, and built for your control.