# sci.calculator vs Cool To Do

The clearest difference is in-app purchases: Cool To Do at none against sci.calculator's 1. sci.calculator's advantage is device support and iOS requirement (15.0 vs 18.0). On price there is nothing between them.

Both are free to download. sci.calculator sells 1 one-off in-app purchase. Cool To Do asks for nothing beyond the download.

## The numbers

| Metric | sci.calculator | Cool To Do |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | — |
| Update frequency | Every 5 weeks | — |
| Size | 49 MB | 27 MB |
| Requires iOS | **15.0** | 18.0 |
| Devices | **iPhone, iPad, iPod** | — |
| Age rating | 4+ | 4+ |
| Developer | [Yukihiro Shioya](https://appshunter.io/developer/1565306192) | [yusuke kageyama](https://appshunter.io/developer/1741298483) |

## What reviewers say

### sci.calculator

[App page](https://appshunter.io/ios/app/scicalculator/id1620728508)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| remove Ads | $1.99 | one-time |


### Cool To Do

[App page](https://appshunter.io/ios/app/cool-to-do/id6497715739)

**In-app purchases:** none


## Frequently asked questions

### Is sci.calculator free?

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

### Is Cool To Do free?

Cool To Do is free to download, with no in-app purchases.

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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.*