# Compounder vs APY

The clearest difference is in-app purchases: Compounder at none against APY's 2. Compounder also leads on ads (none vs shown) and update cadence (every 3 weeks vs every 8 months). APY's advantage is iOS requirement (13.0 vs 16.0). On price and device support there is nothing between them.

Both are free to download. APY sells 2 in-app purchases, starting at $0.99 per month. Compounder asks for nothing beyond the download.

Compounder ships an update every 3 weeks, APY every 8 months. The most recent releases landed on October 20, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | Compounder | APY |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (3.4K ratings)](https://appshunter.io/ios/app/compounder/id1412552240/reviews)** | — |
| Number of ratings | **3.4K** | — |
| Positive reviews | 61.4% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 3 weeks** | Every 8 months |
| Monetization | Free | — |
| Size | 3 MB | 20 MB |
| Requires iOS | 16.0 | **13.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [James Bevins](https://appshunter.io/developer/1137750302) | [Keyurbhai Tavethiya](https://appshunter.io/developer/1596420019) |

## 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


### APY

[App page](https://appshunter.io/ios/app/apy-annual-yield-calculator/id6448006745)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| APY Calc Monthly Premium | $0.99 | per month |
| APY Calc Yearly Premium | $1.99 | per year |


## Frequently asked questions

### Is Compounder free?

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

### Is APY free?

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

### Do Compounder or APY have ads?

APY shows ads; Compounder does not.

### Which is updated more often, Compounder or APY?

Compounder ships an update every 3 weeks, and APY every 8 months. Most recently, Compounder was updated on October 20, 2026 and APY on October 8, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*