# CD Check vs Compound Interest Tool

The clearest difference is price: Compound Interest Tool at Free against CD Check's $0.99. CD Check's advantage is update cadence (every 7 months vs every 57 months) and chart position (#151 vs unranked). On ads, in-app purchases and device support there is nothing between them.

Compound Interest Tool is free to download; CD Check costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

CD Check ships an update every 7 months, Compound Interest Tool every 57 months. The most recent releases landed on October 26, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | CD Check | Compound Interest Tool |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/cd-check-mobile-calculator/id431556633/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 7 months** | Every 57 months |
| Monetization | Paid | — |
| Best chart rank | **#151** | — |
| Size | 2 MB | 12 MB |
| Requires iOS | **9.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [ChuChu Train Productions](https://appshunter.io/developer/415772087) | [Bot Group LLC](https://appshunter.io/developer/1458891494) |

## What reviewers say

### CD Check

[App page](https://appshunter.io/ios/app/cd-check-mobile-calculator/id431556633)

**Currently charting:** #151 Top Paid · Finance (US App Store)

Calculate Certificate of Deposit (CD) earnings with this straightforward tool. It quickly determines interest earned and the final value after the term, also providing automatic APY calculations for easy rate comparisons.

**Highlights:** Easy CD calculations, Interest earned display, Final value calculation, Automatic APY calculation, Rate comparison tool

**Features:** macOS Compatibility

**In-app purchases:** none


### Compound Interest Tool

[App page](https://appshunter.io/ios/app/compound-interest-tool/id1570639219)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is CD Check free?

CD Check costs $0.99, with no in-app purchases.

### Is Compound Interest Tool free?

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

### Do CD Check or Compound Interest Tool have ads?

Neither CD Check nor Compound Interest Tool shows ads.

### Which is updated more often, CD Check or Compound Interest Tool?

CD Check ships an update every 7 months, and Compound Interest Tool every 57 months. Most recently, CD Check was updated on October 26, 2026 and Compound Interest Tool on October 12, 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.*