# Calculator Plug vs Twin Calc

The clearest difference is device support: Calculator Plug at 3 against Twin Calc's 1. On price, ads, in-app purchases and iOS requirement there is nothing between them.

Both are free to download. Calculator Plug sells 4 in-app purchases, starting at $5.99 per month and Twin Calc sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

## The numbers

| Metric | Calculator Plug | Twin Calc |
| --- | --- | --- |
| 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 | Yes |
| Ads | No | No |
| Update frequency | Every 4 days | — |
| Monetization | Free with in-app purchases | — |
| Size | 34 MB | 45 MB |
| Requires iOS | **15.1** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Mark Gabrielli](https://appshunter.io/developer/6775036752) | [Hiroki Sugiyama](https://appshunter.io/developer/6778858327) |

## 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 |


### Twin Calc

[App page](https://appshunter.io/ios/app/twin-calc-two-calculators/id6807615879)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| PRO | $3.99 | one-time |


## Frequently asked questions

### Is Calculator Plug free?

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

### Is Twin Calc free?

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

### Do Calculator Plug or Twin Calc have ads?

Neither Calculator Plug nor Twin Calc 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.*