# RLM vs my15c

The clearest difference is update cadence: my15c at every 5 days against RLM's every 4 weeks. RLM's advantage is iOS requirement (15.0 vs 26.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. RLM sells 1 one-off in-app purchase and my15c sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

RLM ships an update every 4 weeks, my15c every 5 days. The most recent releases landed on September 30, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | RLM | my15c |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/rlm-10cx/id6466089794/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 4 weeks | **Every 5 days** |
| Monetization | Free | — |
| Size | 6 MB | 55 MB |
| Requires iOS | **15.0** | 26.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Mac |
| Age rating | 4+ | 4+ |
| Developer | [R.L.M. Software](https://appshunter.io/developer/289639238) | [Miroslav Perovic](https://appshunter.io/developer/400748424) |

## What reviewers say

### RLM

[App page](https://appshunter.io/ios/app/rlm-10cx/id6466089794)

This scientific calculator offers a comprehensive suite of tools for finance, business, statistics, and complex scientific calculations. It emulates a classic calculator while leveraging modern iOS device capabilities for ease of use and advanced functions.

**Highlights:** Finance and Business calculations, Date and Time interval calculations, Advanced Statistics and Curve Fitting, Complex Numbers and 3D Vectors, Unit and Currency Conversions, Equation Solver, Programmable functions

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

**In-app purchases (1)**

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


### my15c

[App page](https://appshunter.io/ios/app/my15c/id6796379580)

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock Full App | $9.99 | one-time |


## Frequently asked questions

### Is RLM free?

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

### Is my15c free?

my15c is free to download, with in-app purchases available.

### Do RLM or my15c have ads?

Neither RLM nor my15c shows ads.

### Which is updated more often, RLM or my15c?

RLM ships an update every 4 weeks, and my15c every 5 days. Most recently, RLM was updated on September 30, 2026 and my15c on October 24, 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.*