# Arithmetic Calculators vs Shale

The clearest difference is price: Shale at Free against Arithmetic Calculators's $1.99. Arithmetic Calculators's advantage is in-app purchases (none vs 3) and iOS requirement (14.1 vs 16.4). On ads and device support there is nothing between them.

Shale is free to download; Arithmetic Calculators costs $1.99 up front. Shale sells 3 in-app purchases, starting at $2.99 per 7 days. Arithmetic Calculators asks for nothing beyond the download.

## The numbers

| Metric | Arithmetic Calculators | Shale |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | — | Every 4 days |
| Size | 0 MB | 59 MB |
| Requires iOS | **14.1** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [H Valeur](https://appshunter.io/developer/621824042) | [Elias Leinonen](https://appshunter.io/developer/1893625652) |

## What reviewers say

### Arithmetic Calculators

[App page](https://appshunter.io/ios/app/arithmetic-calculators/id6470699979)

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

**In-app purchases:** none


### Shale

[App page](https://appshunter.io/ios/app/shale-block-and-study/id6799409520)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Shale Pro Weekly | $2.99 | per 7 days |
| Shale Annual Plan | $34.99 | per year |
| Shale Pro Lifetime | $99.99 | one-time |


## Frequently asked questions

### Is Arithmetic Calculators free?

Arithmetic Calculators costs $1.99, with no in-app purchases.

### Is Shale free?

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

### Do Arithmetic Calculators or Shale have ads?

Neither Arithmetic Calculators nor Shale 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.*