Compound Calc

Visualise how a starting amount and monthly contributions grow with compound interest — four sliders, one curve.

Finance iOS Paid subscription

Download on theApp Store Get support

Compound Calc — home screen — Home screen

Compound Calc — paywall / subscription — Subscription

Who it's for

Anyone planning savings, retirement contributions, or just curious how their money compounds

How the subscription works

free = calculate. Subscription saves up to 20 named scenarios so you can compare plans side by side and removes ads.

Auto-renews monthly via Apple's standard subscription system.
Cancel anytime in Settings → Apple ID → Subscriptions.
Refunds handled by Apple per their policy at reportaproblem.apple.com.
No third-party tracking or analytics SDKs inside the app.

What we don't collect

Your contact list, photos, location, microphone, or camera.
Any content you enter into the app (notes, logs, data) — it stays on your device unless you explicitly sync.
Identifiers used to track you across other apps.

Full details in our privacy policy.

Now available

Compound Calc est disponible sur l'App Store. Download it here — listed as Calculateur de Rendement Composé. Questions? Email support@bestpaid.app.

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