Fixed Income Bonds Simplified vs BondVault

Transform your fixed income analysis with professional-grade bond calculations in a stunning, redesigned interface. Bonds: Simplified delivers quality analytics directly to your iPhone, avoiding expensive services. COMPLETELY REDESIGNED EXPERIENCE • Beautiful, modern interface built with Apple's latest design principles • Intuitive navigation with enhanced visual clarity • Streamlined workflows that make complex calculations accessible • All your favorite features improved and easier to use ADVANCED MBS ANALYTICS Get insight into mortgage-backed securities that usually cost a lot more: • Comprehensive MBS parameter configuration with instant calculation results • Input pricing and see spreads and key performance metrics • Side-by-side prepayment sensitivity tables supporting both PSA and CPR methodologies • Prepayment modeling with sensitivity ranging from -300 to +300 basis points • Dynamic rate shock analysis comparing baseline speeds across interest rate environments • Horizon yield curve interpolation with customizable time horizons and rate movements • Rich graphical representations of periodic balances and projected income streams • Detailed amortization schedules showing scheduled principal, unscheduled principal, and period-by-period prepayment speeds ACCESSIBLE MARKET DATA • Pull US Treasury yield curve updates through modern API for accurate spread analysis • Seamless integration of current market rates into your calculations • Historical rate tracking for trend analysis • Change heat map over dynamic dates COMPREHENSIVE BOND TOOLS • New! Fixed-rate bullet bond calculator for traditional bond analysis • Multi-scenario comparison capabilities • Stress-scenario analysis across various rate environments EDUCATIONAL RESOURCES Understanding the mechanics behind fixed income valuation is crucial. Bonds: Simplified not only performs the calculations but helps you understand the underlying assumptions and methodologies, making you a more informed analyst. Includes an interactive learning library built around hands-on education. PERFECT FOR: • Fixed income analysts and portfolio managers • Financial advisors working with bond portfolios • Real estate professionals analyzing mortgage securities • Students and professionals learning fixed income markets • Anyone requiring professional bond analytics without institutional costs Bonds: Simplified democratizes professional fixed income analysis with the reliability and accuracy you demand. Important: All calculations and valuations are estimates for analytical purposes and should not be relied upon for actual investment transactions. Please consult with qualified financial professionals for investment decisions.

BondVault is a simple, on-device tracker for U.S. Treasury I Bonds and EE Bonds bought through TreasuryDirect. TreasuryDirect has no mobile app and is hard to use on a phone. BondVault gives you a clean portfolio view of the savings bonds you already own. Enter each bond once — series, amount, and issue date — and BondVault estimates what it's worth today, how much interest it has earned, and when it crosses key milestones. WHAT IT DOES • Estimates current redemption value using the official Treasury composite-rate formula for I Bonds and the fixed-rate method for EE Bonds • Shows accrued interest and your total portfolio value at a glance • Flags the 3-month interest penalty that applies before 5 years, and shows each bond's penalty-free date • Tracks the May and November rate-reset schedule and 30-year final maturity • Projects future value so you can plan ahead • Keeps your bond list on your device — no account or sign-up required BONDVAULT PREMIUM (optional one-time unlock) • Track unlimited bonds (free tracks up to 3) • Full future-value projections • Remove ads IMPORTANT: BondVault is an independent, unofficial tool. It is not affiliated with, endorsed by, or connected to the U.S. Department of the Treasury, TreasuryDirect, or any government agency. Values shown are estimates calculated from published rate data and may differ from official figures. Always confirm balances and redemption values at TreasuryDirect.gov. BondVault is free and supported by ads. Premium is a single purchase that unlocks everything forever — no subscription.