Markulator vs OrangeExit

Markulator makes tipping simple. Enter your bill, pick a tip percentage, and get your total instantly. Splitting with friends? Just set the number of people and see what everyone owes. Features: - Quick tip presets at 10%, 15%, 18%, 20%, and 25% - Custom tip percentage for any amount - Bill splitting for up to 30 people - Calculation history so you never lose track - Works with your local currency automatically - Available in 54 languages - Clean, intuitive design that just works No ads. No subscriptions. No account required. Just open the app and calculate.

OrangeExit is a Bitcoin-powered FIRE (Financial Independence, Retire Early) calculator built for Bitcoiners who want to plan their exit from fiat. Track your journey through six FIRE levels — from Spark to OrangeExit — and see exactly when you'll reach financial sovereignty under different Bitcoin price models. FORECASTING MODELS • Power Law — Giovanni Santostasi's model with fair value, support, and resistance bands • Quantile Regression — Probabilistic price bands showing where BTC is likely to trade • Custom CAGR — Set your own annual BTC growth assumption FIRE DASHBOARD • Real-time FIRE multiple and progress tracking • Net worth breakdown including BTC holdings • Power Law position badge showing if BTC is above or below fair value • Milestone predictions across all three models • Inflation-adjusted targets for realistic planning STACK TOOLS • BTC Needed to Exit — See exactly how much Bitcoin you need at current and future prices • Portfolio Scenarios — Compare 21-year outcomes for different BTC allocations (0% to 100%) • DCA Simulator — Model 10-year dollar-cost averaging outcomes PRIVACY FIRST Your data never leaves your device. No accounts, no servers, no tracking. Everything is stored locally. Built by Bitcoiners, for Bitcoiners. Not financial advice.