cmpnd.

cmpnd. - Compound Your Future

Transform your financial dreams into reality with cmpnd, the beautifully designed compound interest calculator that makes complex calculations feel effortless. Whether you're planning for retirement, saving for a goal, or managing loan payments, cmpnd brings clarity to your financial future with stunning visual feedback and intuitive controls.


Three Powerful Calculators in One App

Growth Calculator - Watch your wealth multiply over time. Perfect for investment planning, retirement savings, and understanding how regular contributions can accelerate your financial growth.

Withdrawal Calculator - Plan your retirement with confidence. See how long your savings will last with regular withdrawals while your remaining balance continues to grow.

Loan Calculator - Take control of your debt. Discover how extra payments can save thousands in interest and shave years off your mortgage or loans.

Designed for Real Life

Every input automatically saves, so you never lose your calculations. Switch between weekly, monthly, quarterly, or yearly compounding to match your real investment schedules. The innovative duration slider lets you explore different time horizons with a simple swipe.

Beautiful Visualizations

Experience iOS 26's revolutionary Liquid Glass design with mesmerizing animated backgrounds that make number crunching a visual delight. Watch your results update in real-time with smooth animations as you adjust any parameter. The year-by-year breakdown shows exactly how your money grows or depletes over time.

Built for iPhone

Crafted exclusively for iPhone with a dark interface that's easy on the eyes. The transparent input fields and floating controls create a premium experience that makes financial planning feel less like work and more like designing your future.

Smart Details Everywhere

The tab bar intelligently hides itself to give you more screen space, reappearing with a gentle tap. Every calculation updates instantly as you type. Currency formatting happens automatically. It's the small touches that make cmpnd a joy to use every day.


Who It's For

Young professionals starting their investment journey who want to see the power of starting early.

Parents planning for their children's education expenses and understanding how much to save.

Anyone with a mortgage wondering if those extra payments are really worth it.

Retirees and pre-retirees calculating if their nest egg will last through retirement.

Students learning about compound interest who want an interactive way to explore the concepts.



Why cmpnd?

Unlike generic calculators, cmpnd was designed specifically for the calculations that matter most in life. No overwhelming options or confusing terminology. Just three focused tools that answer your biggest financial questions with style and precision.


Start compounding your future today.

Built with SwiftUI and iOS 26's latest technologies, cmpnd delivers desktop-class calculations in your pocket. Every animation is precisely crafted. Every interaction is instantaneous. Every calculation is accurate to the penny.

The app requires no account, collects no data, and works entirely offline. Your financial information stays private, stored only on your device.