BitStack

What it is

BitStack is portfolio and wealth software for Bitcoiners. Its position is simple: buy Bitcoin, borrow against it, never sell. The app helps you live that way safely.

• Multi-asset tracking across self-custody wallets, Bitcoin ETFs, MicroStrategy (MSTR) and stocks.
• Bitcoin-backed loan monitoring with liquidation-price alerts, so a drawdown never catches you off guard.
• Forecasting and growth projections, plus AI portfolio insights.
• Weekly portfolio emails with market context.
• Free calculators that need no login: LTV, liquidation, margin call, DCA, re-borrow, retirement and more.

BitStack is a tracking and planning tool. It is not a lender and doesn’t originate loans.

How it’s built

• React Native with Expo, shipping to the web and mobile from one codebase.
• Firebase for auth, data and background functions; Stripe for free and Pro subscriptions.
• Gemini powers the AI portfolio advisor.
• Built since January 2026, almost entirely with AI coding agents: I own product, design, review and growth.

The growth system

BitStack is built to be found, by search engines and by AI assistants. The free calculators each have a no-JavaScript, citation-friendly version, there’s a neutral directory of US Bitcoin products, and the site publishes llms.txt and agent-readable tool endpoints. It’s the same instrument-first, content-led demand engine I build for B2B SaaS, run on a product of my own.