21 Pulse vs Corn Stack

21 Pulse – The rhythm of Bitcoin. Your Bitcoin-only companion for enthusiasts and everyday users. No altcoins, no noise – just everything you need around Bitcoin. FEATURES: • Real-time Bitcoin price (USD & EUR) with interactive charts (1H to All-Time) • Fear & Greed Index & Bitcoin on-chain stats • Lightning SatMap: Find merchants that accept Bitcoin & Lightning near you – with 60+ category icons • Lightning wallets guide & POS solutions for merchants • Bitcoin news in English, German & Spanish • Bitcoin events calendar & conference tracker • Learn Bitcoin: 6 chapters, 24 FAQs, curated videos & books • Portfolio tracker with DCA plans & performance analysis • Tools: Block & Halving, Converter, DCA Calculator, Mining ROI • Home Screen Widget: Live price & 24h change • Beginner & Advanced mode – for every Bitcoiner • Clean design with customizable accent color (light/dark/system) 21 Pulse is built for people who value sovereignty, simplicity and focus. No account required. No tracking. Your data stays on your device. Bitcoin only. Always.

Corn Stack is the ultimate privacy-first portfolio tracker and calculator. And when we say portfolio, we mean strictly Bitcoin-only! We eliminate the noise and focus solely on managing your stacked sats. Built by a Bitcoiner for Bitcoiners, Corn Stack protects your Bitcoin data. Your portfolio is stored securely and exclusively on your device using Apple's local database. There is no account creation, no cloud syncing, and absolutely no tracking. • Live Market Data: Stay on top of the market with the latest price data supported across 38 global fiat currencies. • Two-Way Calculator: Instantly and accurately calculate conversions between your local fiat currency, BTC, and Sats in both directions. • Historical Charts: Visualize Bitcoin's macroeconomic trends with high-fidelity daily price charts to help keep your time preference low. • Always Accessible: Whether you are on a flight or out of cell range, offline caching ensures your portfolio, calculator, and the last fetched market prices are always available. • Node connectivity: Retrieve on-chain and lightning wallet balances using your own node. Stack your sats securely, and protect your life and time.