# WP 31s vs CaaaalcIt

The clearest difference is review sentiment: WP 31s at 100% against CaaaalcIt's 0%. CaaaalcIt's advantage is iOS requirement (10.2 vs 12.0). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | WP 31s | CaaaalcIt |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.9 (15 ratings)](https://appshunter.io/ios/app/wp-31s/id973621300/reviews)** | — |
| Number of ratings | **15** | — |
| Positive reviews | **100.0% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 10 months | — |
| Monetization | Free | Free |
| Size | 16 MB | 14 MB |
| Requires iOS | 12.0 | **10.2** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Pascal Meheut](https://appshunter.io/developer/620255097) | [darius beretta](https://appshunter.io/developer/1400032933) |

## What reviewers say

### WP 31s

[App page](https://appshunter.io/ios/app/wp-31s/id973621300)

This app emulates a classic RPN scientific calculator, offering a rich function set for daily use with a simplified interface. It's based on the more complex WP 34s but is designed for easier operation.

**Highlights:** RPN scientific calculator emulation, Rich function set, Simplified, less cluttered keyboard, Based on WP 34s, Available on iOS

**Features:** macOS Compatibility

**In-app purchases:** none


### 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


## Frequently asked questions

### Is WP 31s free?

WP 31s is free to download, with no in-app purchases.

### Is CaaaalcIt free?

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

### Do WP 31s or CaaaalcIt have ads?

Neither WP 31s nor CaaaalcIt 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.*