# Compound Interest Simulator vs RLM

The clearest difference is ads: RLM at none against Compound Interest Simulator's shown. RLM also leads on review sentiment (90% vs 81%). Compound Interest Simulator's advantage is rating (4.9 vs 4.5) and ratings volume (424 vs 19). On price, update cadence, in-app purchases and monetization model there is nothing between them.

Both are free to download. Compound Interest Simulator sells 10 one-off in-app purchases and RLM sells 4 in-app purchases, starting at $0.49 per month. Whichever you choose, the download price is not the number that matters.

Compound Interest Simulator holds the better App Store score, 4.9 against 4.5. That said, the two scores are not equally well evidenced: Compound Interest Simulator has 424 ratings behind it against 19, so its average is the more settled of the two. Written reviews complicate that: 81% of Compound Interest Simulator's written reviews are positive against 90% of RLM's, so the app with the better star average is not the one people write more warmly about.

Both ship on a similar rhythm, roughly every 5 weeks. Both last shipped on October 25, 2026.

## The numbers

| Metric | Compound Interest Simulator | RLM |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.9 (424 ratings)](https://appshunter.io/ios/app/compound-interest-simulator/id1544655173/reviews)** | [4.5 (19 ratings)](https://appshunter.io/ios/app/rlm-12cx/id1613759385/reviews) |
| Number of ratings | **424** | 19 |
| Positive reviews | 81.0% of reviews | **90.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 5 weeks | Every 5 weeks |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 47 MB | 5 MB |
| Requires iOS | 15.6 | **15.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Andre Leite Barbosa Costa](https://appshunter.io/developer/984337133) | [R.L.M. Software](https://appshunter.io/developer/289639238) |

## What reviewers say

### 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 |


### RLM

[App page](https://appshunter.io/ios/app/rlm-12cx/id1613759385)

This app is a powerful financial and business calculator designed for iOS devices, replicating the functionality of the HP-12C with expanded features. It offers comprehensive tools for finance, business calculations, statistics, scientific functions, and unit conversions.

**Highlights:** Finance and business calculations, Amortization schedules, Bond price and yield calculations, Black-Scholes options valuation, Depreciation methods, Currency and unit conversions, Statistical analysis, Programmable functions

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthtly Subscription | $0.49 | per month |
| Semi annual Subscription | $2.99 | per 6 months |
| Annual Subscription | $5.99 | per year |
| Lifetime Purchase | $9.99 | one-time |


## Frequently asked questions

### Is Compound Interest Simulator free?

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

### Is RLM free?

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

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

Compound Interest Simulator is rated higher. Compound Interest Simulator averages 4.9 out of 5 from 424 ratings, while RLM averages 4.5 from 19 ratings.

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

Compound Interest Simulator shows ads; RLM does not.

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

Compound Interest Simulator ships an update every 5 weeks, and RLM every 5 weeks. Most recently, Compound Interest Simulator was updated on October 25, 2026 and RLM 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.*