# InvestMath: Compound Interest — CAGR & Coast FIRE Calculator

> CAGR & Coast FIRE Calculator (iPhone/iPad app by Ataraxia Labs.)

- Source: https://appshunter.io/ios/app/investmath-compound-interest/id6759869484 (this page in markdown: same URL + `.md`)
- Developer: [Ataraxia Labs](https://appshunter.io/developer/1823083991)
- Category: Finance, Utilities
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 16.4 · 48 MB
- Languages: American English
- Released: 2026-10-01
- Data updated: 2026-10-04
- User reviews in markdown: https://appshunter.io/ios/app/investmath-compound-interest/id6759869484/reviews.md

## What is InvestMath?

InvestMath brings seven investing calculators together in one clean, fast app. Enter a few numbers and get a clear answer in US dollars, British pounds or euros.

QUICK CALCULATORS
• Investment Growth: project a starting balance plus regular contributions
• Annualized Return (CAGR): turn a total return over time into a yearly rate
• Future Return: see the cumulative return a yearly rate produces
• Time to Return: find how many years a target return takes
• Goal Contribution: work out what to invest to reach a portfolio goal

PLANNING TOOLS
• Coast FIRE: find the portfolio value at which you can stop contributing and let compound growth carry you to retirement, and save scenarios to revisit
• Investment Goal: check whether your savings plan reaches your target

SIMPLE BY DESIGN
• No account or sign-up
• The amounts you enter stay on your device
• Light and dark mode

Remove ads anytime with a one-time purchase.

InvestMath provides estimates for educational purposes only. It is not financial advice.

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Remove Ads | $4.99 | one-time |



## Version history (last 1 release)

### 1.2.0 — 2026-10-01

No release notes.

## More apps by Ataraxia Labs

- [Stoic Bible: Practice Stoicism](https://appshunter.io/ios/app/stoic-bible-practice-stoicism/id1542454799)
- [Quoty - Inspiring Quotes](https://appshunter.io/ios/app/quoty-inspiring-quotes/id1567612853)
- [Coast FIRE Calculator](https://appshunter.io/ios/app/coast-fire-calculator/id6754495451)

All apps by Ataraxia Labs: https://appshunter.io/developer/1823083991

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-10-04.*