# CompisCalculator Pro vs SandyCal

The clearest difference is in-app purchases: SandyCal at none against CompisCalculator Pro's 1. SandyCal also leads on update cadence (every 2 days vs every 3 weeks). CompisCalculator Pro's advantage is device support (3 vs 1) and iOS requirement (15.0 vs 26.2). On price and ads there is nothing between them.

Both are free to download. CompisCalculator Pro sells 1 one-off in-app purchase. SandyCal asks for nothing beyond the download.

CompisCalculator Pro ships an update every 3 weeks, SandyCal every 2 days. The most recent releases landed on October 15, 2026 and October 17, 2026 respectively.

## The numbers

| Metric | CompisCalculator Pro | SandyCal |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/compiscalculator-pro/id6451198443/reviews)** | — |
| Number of ratings | **2** | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 2 days** |
| Monetization | Free | — |
| Size | 3 MB | 1 MB |
| Requires iOS | **15.0** | 26.2 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Karl Noreland](https://appshunter.io/developer/1697120498) | [Hiroyuki Akaji](https://appshunter.io/developer/1886302301) |

## What reviewers say

### CompisCalculator Pro

[App page](https://appshunter.io/ios/app/compiscalculator-pro/id6451198443)

A scientific calculator designed to enhance productivity with features like real-time results, unit conversion, and custom buttons. It offers a date calculator, customizable appearance, and is optimized for iPad.

**Highlights:** Real-time calculation results, Integrated unit and currency converter, Customizable buttons and functions, Date and time difference calculator, Calculation history, Customizable appearance, iPad optimization

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| CompisCalculator premium | $2.49 | one-time |


### SandyCal

[App page](https://appshunter.io/ios/app/sandycal/id6760809812)

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

**In-app purchases:** none


## Frequently asked questions

### Is CompisCalculator Pro free?

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

### Is SandyCal free?

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

### Do CompisCalculator Pro or SandyCal have ads?

Neither CompisCalculator Pro nor SandyCal shows ads.

### Which is updated more often, CompisCalculator Pro or SandyCal?

CompisCalculator Pro ships an update every 3 weeks, and SandyCal every 2 days. Most recently, CompisCalculator Pro was updated on October 15, 2026 and SandyCal on October 17, 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.*