# CaaaalcIt vs Clouster

The clearest difference is in-app purchases: CaaaalcIt at none against Clouster's 3. CaaaalcIt also leads on iOS requirement (10.2 vs 15.0). On price, ads and device support there is nothing between them.

Both are free to download. Clouster sells 3 in-app purchases, starting at $4.99 per month. CaaaalcIt asks for nothing beyond the download.

## The numbers

| Metric | CaaaalcIt | Clouster |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | — | Fortnightly |
| Monetization | Free | — |
| Size | 14 MB | 51 MB |
| Requires iOS | **10.2** | 15.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [darius beretta](https://appshunter.io/developer/1400032933) | [PIN CHU WEN](https://appshunter.io/developer/1737767000) |

## 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


### Clouster

[App page](https://appshunter.io/ios/app/clouster-cloud-space-manager/id6479986599)

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Clouster Pro Welcome Offer | $4.99 | per month |
| Clouster Pro 1 Month | $14.99 | per month |
| Clouster Pro 1 Year | $89.99 | per year |


## Frequently asked questions

### Is CaaaalcIt free?

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

### Is Clouster free?

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

### Do CaaaalcIt or Clouster have ads?

Neither CaaaalcIt nor Clouster 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.*