# Instant Compound Calc! — Instant compound calc

> Instant compound calc (iPhone/iPad app by Shun Isayama.)

- Source: https://appshunter.io/ios/app/instant-compound-calc/id6738637650 (this page in markdown: same URL + `.md`)
- Developer: [Shun Isayama](https://appshunter.io/developer/1578976556)
- Category: Finance, Utilities
- Price: $2.99
- Age rating: 4+
- Requires: iOS 17.6 · 7 MB
- Languages: American English, Danish, Dutch, French (France), German (Germany), Italian, Japanese, Korean, Norwegian Bokmål, European Portuguese and 5 more
- Released: 2024-11-25
- Data updated: 2026-08-19
- User reviews in markdown: https://appshunter.io/ios/app/instant-compound-calc/id6738637650/reviews.md

## What is Instant Compound Calc!?

A simple yet powerful compound interest calculator that computes complex calculations instantly!

With easy operation, it displays highly accurate results.

＜App Features＞
1. Simple and intuitive UI: Just input principal, annual rate, and years elapsed for easy compound interest calculation. The visually clear design ensures even first-time users can use it confidently.

2. Lightning-fast calculation: Tap the "Calculate" button after input to instantly view results. See the power of compound interest right away.

3. Clear results display: Results appear in large, easy-to-read fonts. Check principal plus interest and interest amounts for each year in detail.

4. User-friendly input keyboard: Optimized numeric keyboard with easy close button for smooth input.

5. Error prevention: Detects invalid inputs and shows error messages. Ensures accurate calculations with peace of mind.

＜Recommended For＞
* Investors (beginner to advanced): Simulate investment growth for future planning

* Household managers: Understand savings and investment effects concretely

* Educators: Use as a financial education tool for students

* Economics learners: Learn compound interest concepts hands-on

＜Compound Interest Formula＞
* Total Amount = Principal × (1 + Annual Rate/100) ^ Years Elapsed

Simple operation for precise compound interest calculations, anytime anywhere.
Your essential tool for asset building!

Paid app with no ads whatsoever.

## Chart rankings

- #124 in Top Paid · Finance (US App Store)


## Version history (last 5 releases)

### 1.7 — 2026-07-29

Multilingual support (Traditional Chinese, Italian, Dutch, Turkish, Swedish, Norwegian, Danish, and Brazilian Portuguese)

### 1.6 — 2025-12-11

Multi-language support (English, Chinese (Simplified), Spanish, French, German, Korean, Portuguese (Portugal))

### 1.5 — 2025-11-02

・アプリ有料化に伴い、広告を全て削除

### 1.4 — 2025-07-23

・軽微な不具合の修正

### 1.3 — 2025-02-18

・広告非表示機能を追加（アプリ内課金：月額サブスクリプション）
・ユーザへのアプリレビュー依頼機能を追加

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## More apps by Shun Isayama

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All apps by Shun Isayama: https://appshunter.io/developer/1578976556

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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 2026-08-19.*