# Calculator vs Calculator Plug

The clearest difference is in-app purchases: Calculator at none against Calculator Plug's 4. Calculator Plug's advantage is iOS requirement (15.1 vs 17.0). On price, rating, ratings volume and update cadence there is nothing between them.

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

On the App Store both sit at effectively the same score — 5.0 for Calculator against 5.0 for Calculator Plug. Both are backed by a comparable volume of ratings — 2 and 1 respectively.

Calculator ships an update every 8 days, Calculator Plug every 4 days. The most recent releases landed on October 15, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | Calculator | Calculator Plug |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (2 ratings)](https://appshunter.io/ios/app/calculator-andulator/id1150777586/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/calculator-plug/id6775307587/reviews) |
| Number of ratings | **2** | 1 |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 8 days | **Every 4 days** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 6 MB | 34 MB |
| Requires iOS | 17.0 | **15.1** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Bytesly Technologies, LLC](https://appshunter.io/developer/1538174218) | [Mark Gabrielli](https://appshunter.io/developer/6775036752) |

## What reviewers say

### Calculator

[App page](https://appshunter.io/ios/app/calculator-andulator/id1150777586)

This universal calculator offers traditional functions plus advanced features like equation solving, geometric calculations, and derivative work. Its smart scanner can read math from text, making it ideal for students and daily use.

**Highlights:** Equation solving, Geometric calculations, Derivative calculations, Smart scanner for text input, Traditional calculator functions

**Features:** macOS Compatibility

**In-app purchases:** none


### 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 |


## Frequently asked questions

### Is Calculator free?

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

### Is Calculator Plug free?

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

### Which has better reviews, Calculator or Calculator Plug?

Calculator and Calculator Plug are both rated 5.0 out of 5 on the App Store, from 2 and 1 ratings respectively.

### Do Calculator or Calculator Plug have ads?

Neither Calculator nor Calculator Plug shows ads.

### Which is updated more often, Calculator or Calculator Plug?

Calculator ships an update every 8 days, and Calculator Plug every 4 days. Most recently, Calculator was updated on October 15, 2026 and Calculator Plug on October 14, 2026.

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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.*