# Compound Interest Comparator vs Instant Compound Calculator

The clearest difference is price: Compound Interest Comparator at Free against Instant Compound Calculator's $2.99. Compound Interest Comparator also leads on iOS requirement (13.0 vs 17.6). On update cadence, ads, in-app purchases and device support there is nothing between them.

Compound Interest Comparator is free to download; Instant Compound Calculator costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Compound Interest Comparator ships an update every 3 months, Instant Compound Calculator every 2 months. The most recent releases landed on September 10, 2026 and September 21, 2026 respectively.

## The numbers

| Metric | Compound Interest Comparator | Instant Compound Calculator |
| --- | --- | --- |
| Price | **Free** | $2.99 |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 2 months** |
| Size | 7 MB | 6 MB |
| Requires iOS | **13.0** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [PeiHao Chen](https://appshunter.io/developer/1598090414) | [Shun Isayama](https://appshunter.io/developer/1578976556) |

## What reviewers say

### Compound Interest Comparator

[App page](https://appshunter.io/ios/app/compound-interest-comparator/id1603469050)

**Features:** macOS Compatibility

**In-app purchases:** none


### Instant Compound Calculator

[App page](https://appshunter.io/ios/app/instant-compound-calculator/id6738674344)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Compound Interest Comparator free?

Compound Interest Comparator is free to download, with no in-app purchases.

### Is Instant Compound Calculator free?

Instant Compound Calculator costs $2.99, with no in-app purchases.

### Do Compound Interest Comparator or Instant Compound Calculator have ads?

Neither Compound Interest Comparator nor Instant Compound Calculator shows ads.

### Which is updated more often, Compound Interest Comparator or Instant Compound Calculator?

Compound Interest Comparator ships an update every 3 months, and Instant Compound Calculator every 2 months. Most recently, Compound Interest Comparator was updated on September 10, 2026 and Instant Compound Calculator on September 21, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*