Growvex: Compound Interest

Growvex is a compound interest calculator built for anyone who wants to understand how money grows over time. No account required, no internet needed — everything runs locally on your device.

Enter a principal amount, set an annual interest rate, and choose a time horizon. Growvex instantly renders a growth chart showing how your investment compounds year by year. Adjust any parameter with the sliders and watch the chart update in real time.

The app supports side-by-side scenario comparison, so you can test different rates or durations against each other without losing your first set of inputs. This makes it straightforward to answer questions like "what difference does an extra 1% make over 20 years?" or "how much longer do I need to stay invested to reach my target?"

All calculations follow standard compound interest formulas, with support for varying compounding frequencies — annual, quarterly, monthly, and daily. Results include total value, total interest earned, and a breakdown by period.

The interface is clean and focused. Sliders respond to touch with haptic feedback. Charts animate smoothly when values change. There are no ads, no paywalls, and no registration screens — just the calculator.