# Cost Margin Calculator vs Compound Interest Calc

The clearest difference is rating: Compound Interest Calc at 4.8 against Cost Margin Calculator's 3.6. Compound Interest Calc also leads on ratings volume (6.7K vs 90) and review sentiment (69% vs 47%). Cost Margin Calculator's advantage is in-app purchases (none vs 1) and ads (none vs shown). On price and device support there is nothing between them.

Both are free to download. Compound Interest Calc sells 1 one-off in-app purchase. Cost Margin Calculator asks for nothing beyond the download.

Compound Interest Calc holds the better App Store score, 4.8 against 3.6. That said, the two scores are not equally well evidenced: Compound Interest Calc has 6.7K ratings behind it against 90, so its average is the more settled of the two. Written reviews point the same way: 47% of Cost Margin Calculator's written reviews are positive against 69% of Compound Interest Calc's.

Cost Margin Calculator ships an update every 12 months, Compound Interest Calc every 3 months. The most recent releases landed on November 1, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | Cost Margin Calculator | Compound Interest Calc |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.6 (90 ratings)](https://appshunter.io/ios/app/cost-margin-calculator/id672011923/reviews) | **[4.8 (6.7K ratings)](https://appshunter.io/ios/app/compound-interest-calc/id1509212588/reviews)** |
| Number of ratings | 90 | **6.7K** |
| Positive reviews | 47.2% of reviews | **68.6% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 12 months | **Every 3 months** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 36 MB | 16 MB |
| Requires iOS | **12.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Renowne, LLC](https://appshunter.io/developer/672011926) | [Dane Hankamer](https://appshunter.io/developer/1509095396) |

## What reviewers say

### Cost Margin Calculator

[App page](https://appshunter.io/ios/app/cost-margin-calculator/id672011923)

This business tool accurately calculates cost, margin/markup, price, and commission. It also includes a break-even calculator to determine the sales needed to cover costs during promotions. Achieve your business goals with this simple yet powerful app.

**Highlights:** Cost, margin/markup, price, commission calculators, Break-even analysis calculator, Toggle between margin and markup, Import results to cost field, Roll calculation for multiple markups

**Features:** macOS Compatibility

**In-app purchases:** none

**What reviewers like**

- 👍 Easy to use
- 👍 User friendly
- 👍 Accurate calculations
- 👍 Clear and concise
- 👍 Useful tool

**What reviewers complain about**

- 😞 Annoying face on load
- 😞 Slow app loading
- 😞 Unprofessional design
- 😞 Narcissistic design
- 😞 Unnecessary loading screen

**Reported bugs**

- Update for IOS 14 needed
- Negative totals with IOS 14
- Calculator has errors with floating decimals
- Percent key does not function properly
- Calculator doesn't subtract % correctly

**Requested features**

- Add other currencies
- Calculate commission based on margin %
- Backwards calculation for margin/markup
- Auto-calculate retail based on margin
- Add Real estate cap rate calculator


### Compound Interest Calc

[App page](https://appshunter.io/ios/app/compound-interest-calc/id1509212588)

Plan your financial future with a powerful compound interest calculator. It helps you visualize investment growth with periodic contributions and plan retirement withdrawals with inflation adjustments. Offers detailed breakdowns and interactive charts for informed financial decisions.

**Highlights:** Calculate investment growth with contributions, Plan retirement withdrawals with inflation, Interactive growth and depletion charts, Year-by-year detailed breakdowns, Real-time calculations, Works offline

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $1.99 | one-time |

**What reviewers like**

- 🚀 Easy to use
- 🚀 Visually appealing
- 🚀 Helpful for financial planning
- 🚀 Powerful compound interest calculations
- 🚀 Intuitive interface

**What reviewers complain about**

- 🐛 Scaling issues on smaller devices
- 🐛 Inaccurate calculations in certain scenarios
- 🐛 Frequent ads disrupting user experience
- 🐛 Crashing and compatibility issues
- 🐛 Lack of customization options

**Reported bugs**

- Withdrawal calculations showing incorrect results
- App crashing on certain device models
- Scaling issues on iPad devices
- Compound interest calculations not accurate for weekly/monthly contributions

**Requested features**

- Add dividend calculation option
- Allow for daily compound interest calculations
- Implement a save/load feature to retain user inputs
- Add ability to input one-time lump sum contributions
- Provide inflation-adjusted withdrawal calculations


## Frequently asked questions

### Is Cost Margin Calculator free?

Cost Margin Calculator is free to download, with no in-app purchases.

### Is Compound Interest Calc free?

Compound Interest Calc is free to download, with in-app purchases available.

### Which has better reviews, Cost Margin Calculator or Compound Interest Calc?

Compound Interest Calc is rated higher. Cost Margin Calculator averages 3.6 out of 5 from 90 ratings, while Compound Interest Calc averages 4.8 from 6.7K ratings.

### Do Cost Margin Calculator or Compound Interest Calc have ads?

Compound Interest Calc shows ads; Cost Margin Calculator does not.

### Which is updated more often, Cost Margin Calculator or Compound Interest Calc?

Cost Margin Calculator ships an update every 12 months, and Compound Interest Calc every 3 months. Most recently, Cost Margin Calculator was updated on November 1, 2026 and Compound Interest Calc on November 3, 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.*