# Calculator Plug vs Voltary

The clearest difference is in-app purchases: Voltary at none against Calculator Plug's 4. Voltary also leads on iOS requirement (13.0 vs 15.1). Calculator Plug's advantage is ads (none vs shown). On price and device support there is nothing between them.

Both are free to download. Calculator Plug sells 4 in-app purchases, starting at $5.99 per month. Voltary asks for nothing beyond the download.

## The numbers

| Metric | Calculator Plug | Voltary |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/calculator-plug/id6775307587/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | Every 4 days | — |
| Monetization | Free with in-app purchases | — |
| Size | 34 MB | 45 MB |
| Requires iOS | 15.1 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Mark Gabrielli](https://appshunter.io/developer/6775036752) | [Hasanain Alhamedi](https://appshunter.io/developer/6777917433) |

## What reviewers say

### Calculator Plug

[App page](https://appshunter.io/ios/app/calculator-plug/id6775307587)

Access over 450 specialized calculators for construction, finance, health, trades, and more. This app offers a clean, offline-capable interface for quick, accurate calculations without intrusive ads.

**Highlights:** 450+ searchable calculators, Offline functionality, Clean dark interface, Construction calculators, Finance calculators, Health and fitness calculators, Trades calculators

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Monthly | $5.99 | per month |
| Pro+ Monthly | $9.99 | per month |
| Pro Lifetime | $29.99 | one-time |
| Pro+ Lifetime | $44.99 | one-time |


### Voltary

[App page](https://appshunter.io/ios/app/voltary/id6778161465)

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

**In-app purchases:** none


## Frequently asked questions

### Is Calculator Plug free?

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

### Is Voltary free?

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

### Do Calculator Plug or Voltary have ads?

Voltary shows ads; Calculator Plug does not.

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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.*