# RLM vs Psv Inspector

The clearest difference is in-app purchases: Psv Inspector at none against RLM's 4. Psv Inspector also leads on iOS requirement (11.0 vs 15.0). On price, ads and device support there is nothing between them.

Both are free to download. RLM sells 4 in-app purchases, starting at $0.49 per month. Psv Inspector asks for nothing beyond the download.

## The numbers

| Metric | RLM | Psv Inspector |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.1 (18 ratings)](https://appshunter.io/ios/app/rlm-15cx/id1636646608/reviews)** | — |
| Number of ratings | **18** | — |
| Positive reviews | 80.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Monthly | — |
| Monetization | Free with in-app purchases | — |
| Size | 6 MB | 131 MB |
| Requires iOS | 15.0 | **11.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [R.L.M. Software](https://appshunter.io/developer/289639238) | [Presys Instrumentos e Sistemas LTDA](https://appshunter.io/developer/1796445294) |

## What reviewers say

### RLM

[App page](https://appshunter.io/ios/app/rlm-15cx/id1636646608)

This advanced scientific calculator emulates the functionality of the HP-15C, offering comprehensive tools for finance, business, statistics, and scientific calculations. It supports programming, equation solving, and unit conversions, optimized for iOS devices.

**Highlights:** Programmable advanced scientific calculator, Finance and business calculation menus, Statistics and probability functions, Complex numbers and matrix operations, Unit and currency conversions, Equation solver and programming capabilities

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Subscription | $0.49 | per month |
| Semi-Annual Subscription | $2.99 | per 6 months |
| Annual Subscription | $5.99 | per year |
| One-Time Purchase | $9.99 | one-time |


### Psv Inspector

[App page](https://appshunter.io/ios/app/psv-inspector/id6742033044)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is RLM free?

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

### Is Psv Inspector free?

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

### Do RLM or Psv Inspector have ads?

Neither RLM nor Psv Inspector shows ads.

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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.*