# Calculator. + vs Omega Calculator

The clearest difference is price: Omega Calculator at Free against Calculator. +'s $0.99. Omega Calculator also leads on device support. Calculator. +'s advantage is in-app purchases (none vs 1) and iOS requirement (10.0 vs 15.0).

Omega Calculator is free to download; Calculator. + costs $0.99 up front. Omega Calculator sells 1 one-off in-app purchase. Calculator. + asks for nothing beyond the download.

## The numbers

| Metric | Calculator. + | Omega Calculator |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | — | **[4.7 (44 ratings)](https://appshunter.io/ios/app/omega-calculator/id1528068503/reviews)** |
| Number of ratings | — | **44** |
| Positive reviews | — | 83.3% of reviews |
| In-app purchases | **No** | Yes |
| Ads | — | No |
| Update frequency | — | Every 2 months |
| Monetization | — | Free with in-app purchases |
| Size | 2 MB | 9 MB |
| Requires iOS | **10.0** | 15.0 |
| Devices | — | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Tamer Elsharqawy](https://appshunter.io/developer/686691900) | [Joseph Rupertus](https://appshunter.io/developer/1610637143) |

## What reviewers say

### Calculator. +

[App page](https://appshunter.io/ios/app/calculator-plus/id1099956664)

**In-app purchases:** none


### Omega Calculator

[App page](https://appshunter.io/ios/app/omega-calculator/id1528068503)

A beautiful and intuitive calculator app for iPhone and iPad, offering both basic arithmetic and advanced scientific functions. It features a smooth, fluid interface with large, colorful buttons and high-quality mathematical typesetting. Results are saved to a history tape and synced across devices, with customizable themes available.

**Highlights:** Basic and scientific calculation modes, Intuitive and fluid interface, High-quality mathematical typesetting, History tape for saved calculations, Customizable themes, Advanced functions (Pro version)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Omega Pro | $6.99 | one-time |


## Frequently asked questions

### Is Calculator. + free?

Calculator. + costs $0.99, with no in-app purchases.

### Is Omega Calculator free?

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

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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.*