# Starling Calculator vs Calculator+ Simple Math

The clearest difference is in-app purchases: Calculator+ Simple Math at none against Starling Calculator's 3. Calculator+ Simple Math also leads on device support (3 vs 1) and iOS requirement (13.0 vs 18.0). On price and ads there is nothing between them.

Both are free to download. Starling Calculator sells 3 in-app purchases, starting at $4.99 per year. Calculator+ Simple Math asks for nothing beyond the download.

## The numbers

| Metric | Starling Calculator | Calculator+ Simple Math |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Size | 16 MB | 19 MB |
| Requires iOS | 18.0 | **13.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [文之 虞](https://appshunter.io/developer/1893499984) | [Space 64 LLC](https://appshunter.io/developer/1769185943) |

## What reviewers say

### Starling Calculator

[App page](https://appshunter.io/ios/app/starling-calculator/id6762246215)

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Starling Pro | $4.99 | per year |
| Starling Pro | $2.99 | one-time |
| Starling Pro | $6.99 | one-time |


### Calculator+ Simple Math

[App page](https://appshunter.io/ios/app/calculator-plus-simple-math/id6764523918)

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

**In-app purchases:** none


## Frequently asked questions

### Is Starling Calculator free?

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

### Is Calculator+ Simple Math free?

Calculator+ Simple Math is free to download, with no in-app purchases.

### Do Starling Calculator or Calculator+ Simple Math have ads?

Neither Starling Calculator nor Calculator+ Simple Math 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.*