# Compounder vs Compound Interest Simulator

The clearest difference is in-app purchases: Compounder at none against Compound Interest Simulator's 10. Compounder also leads on ads (none vs shown) and ratings volume (3.4K vs 415). Compound Interest Simulator's advantage is review sentiment (81% vs 61%). On price, rating, update cadence and device support there is nothing between them.

Both are free to download. Compound Interest Simulator sells 10 one-off in-app purchases. Compounder asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 4.8 for Compounder against 4.9 for Compound Interest Simulator. That said, the two scores are not equally well evidenced: Compounder has 3.4K ratings behind it against 415, so its average is the more settled of the two. Written reviews are what separate them: 61% of Compounder's written reviews are positive against 81% of Compound Interest Simulator's.

Compounder ships an update every 3 weeks, Compound Interest Simulator every 5 weeks. The most recent releases landed on October 20, 2026 and October 17, 2026 respectively.

## The numbers

| Metric | Compounder | Compound Interest Simulator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.8 (3.4K ratings)](https://appshunter.io/ios/app/compounder/id1412552240/reviews) | **[4.9 (415 ratings)](https://appshunter.io/ios/app/compound-interest-simulator/id1544655173/reviews)** |
| Number of ratings | **3.4K** | 415 |
| Positive reviews | 61.4% of reviews | **81.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 3 weeks** | Every 5 weeks |
| Monetization | **Free** | Free with in-app purchases |
| Size | 3 MB | 47 MB |
| Requires iOS | 16.0 | **15.6** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [James Bevins](https://appshunter.io/developer/1137750302) | [Andre Leite Barbosa Costa](https://appshunter.io/developer/984337133) |

## What reviewers say

### 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


### Compound Interest Simulator

[App page](https://appshunter.io/ios/app/compound-interest-simulator/id1544655173)

Visualize the growth of your savings and investments using compound interest. Plan for major purchases, retirement, or financial independence with detailed simulations and customizable options.

**Highlights:** Compound interest simulation, Savings growth visualization, Basic and Advanced modes, Multiple deposit/withdrawal planning, Customizable compounding frequency, Retirement and financial independence planning

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

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads & Unlock All Themes | $0.99 | one-time |
| Remove Ads & Unlock All Themes | $1.99 | one-time |
| Remove Ads & Unlock All Themes | $2.99 | one-time |
| Remove Ads & Unlock All Themes | $3.99 | one-time |
| Remove Ads & Unlock All Themes | $4.99 | one-time |
| Remove Ads & Unlock All Themes | $5.99 | one-time |
| Remove Ads & Unlock All Themes | $6.99 | one-time |
| Remove Ads & Unlock All Themes | $7.99 | one-time |
| Remove Ads & Unlock All Themes | $8.99 | one-time |
| Remove Ads & Unlock All Themes | $9.99 | one-time |


## Frequently asked questions

### Is Compounder free?

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

### Is Compound Interest Simulator free?

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

### Which has better reviews, Compounder or Compound Interest Simulator?

Compound Interest Simulator is rated higher. Compounder averages 4.8 out of 5 from 3.4K ratings, while Compound Interest Simulator averages 4.9 from 415 ratings.

### Do Compounder or Compound Interest Simulator have ads?

Compound Interest Simulator shows ads; Compounder does not.

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

Compounder ships an update every 3 weeks, and Compound Interest Simulator every 5 weeks. Most recently, Compounder was updated on October 20, 2026 and Compound Interest Simulator on October 17, 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.*