# Compound Interest Calc + vs Compounder

The clearest difference is price: Compounder at Free against Compound Interest Calc +'s $2.99. Compounder also leads on ratings volume (3.4K vs 34) and review sentiment (60% vs 36%). Compound Interest Calc +'s advantage is iOS requirement (13.0 vs 16.0). On rating, update cadence, ads and in-app purchases there is nothing between them.

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

On the App Store both sit at effectively the same score — 4.8 for Compound Interest Calc + against 4.8 for Compounder. That said, the two scores are not equally well evidenced: Compounder has 3.4K ratings behind it against 34, so its average is the more settled of the two. Written reviews are what separate them: 36% of Compound Interest Calc +'s written reviews are positive against 60% of Compounder's.

Compound Interest Calc + ships an update fortnightly, Compounder every 3 weeks. The most recent releases landed on September 14, 2026 and September 22, 2026 respectively.

## The numbers

| Metric | Compound Interest Calc + | Compounder |
| --- | --- | --- |
| Price | $2.99 | **Free** |
| Rating | [4.8 (34 ratings)](https://appshunter.io/ios/app/compound-interest-calc-plus/id1360950679/reviews) | [4.8 (3.4K ratings)](https://appshunter.io/ios/app/compounder/id1412552240/reviews) |
| Number of ratings | 34 | **3.4K** |
| Positive reviews | 36.4% of reviews | **60.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 3 weeks |
| Monetization | Paid | **Free** |
| Size | 1 MB | 3 MB |
| Requires iOS | **13.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Adam Fahlman](https://appshunter.io/developer/974051920) | [James Bevins](https://appshunter.io/developer/1137750302) |

## What reviewers say

### Compound Interest Calc +

[App page](https://appshunter.io/ios/app/compound-interest-calc-plus/id1360950679)

Calculate compound interest and future investment values with various parameters like principal, interest rate, and additional deposits. Export results to PDF or CSV and compare saved calculations.

**Highlights:** Compound interest calculation, Future value projection, Support for principal, interest, duration, inflation, and deposits, Flexible compounding and deposit frequencies, Detailed results including inflation-adjusted balance, PDF and CSV export, Save and compare calculations

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

**In-app purchases:** none


### Compounder

[App page](https://appshunter.io/ios/app/compounder/id1412552240)

Calculate the growth of savings and investments using compound interest. Explore how regular contributions and withdrawals impact your financial goals over time. Designed for anyone to understand and utilize the power of compounding for wealth building.

**Highlights:** Calculate compound interest, Flexible settings, Factor in periodic withdrawals, Factor in additional contributions, Easy-to-use interface

**Features:** macOS Compatibility

**In-app purchases:** none

**What reviewers like**

- 👍 Easy to use
- 🚀 Instant results
- 💡 Helps explain investments
- 🚀 Simple and easy to use
- 👍 Best and easiest compound calculator

**What reviewers complain about**

- 🐛 Glitchy and not user-friendly after update
- 🐛 Can't use quarterly, monthly, or weekly buttons after update
- 🐛 New version not working well on iPhone
- 🐛 Can't click off of monthly to quarterly, yearly, or weekly
- 🐛 Compound frequency stuck on monthly after update

**Reported bugs**

- Calculation issues with initial investment
- Formatting issues on mobile devices
- Crashes after short usage

**Requested features**

- Add percentage option for withdrawal
- Allow adjusting periodic contributions (weekly, monthly, etc.)
- Include daily compounding option
- Add inflation adjustment to contributions and outputs
- Create a widget version


## Frequently asked questions

### Is Compound Interest Calc + free?

Compound Interest Calc + costs $2.99, with no in-app purchases.

### Is Compounder free?

Compounder is free to download, with no in-app purchases.

### Which has better reviews, Compound Interest Calc + or Compounder?

Compound Interest Calc + and Compounder are both rated 4.8 out of 5 on the App Store, from 34 and 3.4K ratings respectively.

### Do Compound Interest Calc + or Compounder have ads?

Neither Compound Interest Calc + nor Compounder shows ads.

### Which is updated more often, Compound Interest Calc + or Compounder?

Compound Interest Calc + ships an update fortnightly, and Compounder every 3 weeks. Most recently, Compound Interest Calc + was updated on September 14, 2026 and Compounder on September 22, 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.*