# CaaaalcIt vs RLM

The clearest difference is review sentiment: RLM at 80% against CaaaalcIt's 0%. CaaaalcIt's advantage is in-app purchases (none vs 4) and iOS requirement (10.2 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. CaaaalcIt asks for nothing beyond the download.

## The numbers

| Metric | CaaaalcIt | RLM |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.1 (18 ratings)](https://appshunter.io/ios/app/rlm-15cx/id1636646608/reviews)** |
| Number of ratings | — | **18** |
| Positive reviews | 0.0% of reviews | **80.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | — | Monthly |
| Monetization | **Free** | Free with in-app purchases |
| Size | 14 MB | 6 MB |
| Requires iOS | **10.2** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [darius beretta](https://appshunter.io/developer/1400032933) | [R.L.M. Software](https://appshunter.io/developer/289639238) |

## What reviewers say

### CaaaalcIt

[App page](https://appshunter.io/ios/app/caaaalcit/id1556732744)

This calculator app uses Reverse Polish Notation (RPN) for efficient calculations. It features a visible stack for tracking operations and offers numerous functions to explore.

**Highlights:** Reverse Polish Notation (RPN), 4 visible stack levels, Numerous functions, Intuitive interface

**Features:** macOS Compatibility

**In-app purchases:** none


### 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 |


## Frequently asked questions

### Is CaaaalcIt free?

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

### Is RLM free?

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

### Do CaaaalcIt or RLM have ads?

Neither CaaaalcIt nor RLM 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.*