# Embedded System&Microcontroler vs RLM

The clearest difference is price: RLM at Free against Embedded System&Microcontroler's $5.99. RLM also leads on update cadence (every 4 weeks vs every 39 months). Embedded System&Microcontroler's advantage is in-app purchases (none vs 1) and iOS requirement (12.0 vs 15.0). On ads and device support there is nothing between them.

RLM is free to download; Embedded System&Microcontroler costs $5.99 up front. RLM sells 1 one-off in-app purchase. Embedded System&Microcontroler asks for nothing beyond the download.

Embedded System&Microcontroler ships an update every 39 months, RLM every 4 weeks. The most recent releases landed on October 6, 2026 and September 30, 2026 respectively.

## The numbers

| Metric | Embedded System&Microcontroler | RLM |
| --- | --- | --- |
| Price | $5.99 | **Free** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 39 months | **Every 4 weeks** |
| Monetization | — | Free with in-app purchases |
| Size | 10 MB | 3 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Raj Kumar](https://appshunter.io/developer/1037581682) | [R.L.M. Software](https://appshunter.io/developer/289639238) |

## What reviewers say

### Embedded System&Microcontroler

[App page](https://appshunter.io/ios/app/embedded-system-and-microcontroler/id1209722151)

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

**In-app purchases:** none


### RLM

[App page](https://appshunter.io/ios/app/rlm-18cx/id6474547127)

This business and financial calculator offers a comprehensive suite of tools for professionals. It includes functions for time value of money, interest rate conversion, cash flow analysis, statistics, and equation solving. Customize settings and access help documents for a powerful calculation experience.

**Highlights:** Time Value of Money calculations, Interest Rate Conversion, Cash Flow Analysis, Statistics and Regression, Break-Even Analysis, Currency and Unit Conversions, Equation Solver

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Lifetime Purchase | $9.99 | one-time |


## Frequently asked questions

### Is Embedded System&Microcontroler free?

Embedded System&Microcontroler costs $5.99, with no in-app purchases.

### Is RLM free?

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

### Do Embedded System&Microcontroler or RLM have ads?

Neither Embedded System&Microcontroler nor RLM shows ads.

### Which is updated more often, Embedded System&Microcontroler or RLM?

Embedded System&Microcontroler ships an update every 39 months, and RLM every 4 weeks. Most recently, Embedded System&Microcontroler was updated on October 6, 2026 and RLM on September 30, 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.*