# Compounder vs Interest Calculator

The clearest difference is in-app purchases: Compounder at none against Interest Calculator's 2. Compounder also leads on review sentiment (61% vs 40%) and ratings volume (4.3K vs 83). Interest Calculator's advantage is iOS requirement (14.0 vs 16.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Interest Calculator sells 2 in-app purchases, starting at $2.99 per year. Compounder asks for nothing beyond the download.

Compounder holds the better App Store score, 4.8 against 4.6. That said, the two scores are not equally well evidenced: Compounder has 4.3K ratings behind it against 83, so its average is the more settled of the two. Written reviews point the same way: 61% of Compounder's written reviews are positive against 40% of Interest Calculator's.

Compounder ships an update every 3 weeks, Interest Calculator every 5 weeks. The most recent releases landed on October 26, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Compounder | Interest Calculator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (4.3K ratings)](https://appshunter.io/ios/app/compounder/id1412552240/reviews)** | [4.6 (83 ratings)](https://appshunter.io/ios/app/interest-calculator-finance/id6445817900/reviews) |
| Number of ratings | **4.3K** | 83 |
| Positive reviews | **61.4% of reviews** | 40.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 5 weeks |
| Monetization | **Free** | Freemium |
| Size | 3 MB | 8 MB |
| Requires iOS | 16.0 | **14.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [James Bevins](https://appshunter.io/developer/1137750302) | [Jatin Maniya](https://appshunter.io/developer/1578216434) |

## 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, Vision Pro support

**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


### Interest Calculator

[App page](https://appshunter.io/ios/app/interest-calculator-finance/id6445817900)

Easily calculate compound and simple interest on various investments like FDs, CDs, and RDs. Project future investment values and analyze returns with a user-friendly interface for global users.

**Highlights:** Compound & Simple Interest Calculation, Fixed Deposit (FD) & CD Analysis, Recurring Deposit (RD) Tracking, Investment Return Projection, User-Friendly Interface, Global Bank & Investment Terms

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Interest Calculator Premium | $2.99 | per year |
| Lifetime Access | $9.99 | one-time |


## Frequently asked questions

### Is Compounder free?

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

### Is Interest Calculator free?

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

### Which has better reviews, Compounder or Interest Calculator?

Compounder is rated higher. Compounder averages 4.8 out of 5 from 4.3K ratings, while Interest Calculator averages 4.6 from 83 ratings.

### Do Compounder or Interest Calculator have ads?

Neither Compounder nor Interest Calculator shows ads.

### Which is updated more often, Compounder or Interest Calculator?

Compounder ships an update every 3 weeks, and Interest Calculator every 5 weeks. Most recently, Compounder was updated on October 26, 2026 and Interest Calculator on October 25, 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.*