# BIG CALCULATOR. vs Omega Calculator

The clearest difference is ads: Omega Calculator at none against BIG CALCULATOR.'s shown. BIG CALCULATOR.'s advantage is review sentiment (100% vs 83%) and update cadence (every 3 weeks vs every 2 months). On price, rating, ratings volume and in-app purchases there is nothing between them.

Both are free to download. BIG CALCULATOR. sells 1 in-app purchase, starting at $2.99 per year and Omega Calculator sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 4.6 for BIG CALCULATOR. against 4.7 for Omega Calculator. Both are backed by a comparable volume of ratings — 70 and 44 respectively. Written reviews are what separate them: 100% of BIG CALCULATOR.'s written reviews are positive against 83% of Omega Calculator's.

BIG CALCULATOR. ships an update every 3 weeks, Omega Calculator every 2 months. The most recent releases landed on November 6, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | BIG CALCULATOR. | Omega Calculator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.6 (70 ratings)](https://appshunter.io/ios/app/big-calculator/id1114392920/reviews) | **[4.7 (44 ratings)](https://appshunter.io/ios/app/omega-calculator/id1528068503/reviews)** |
| Number of ratings | **70** | 44 |
| Positive reviews | **100.0% of reviews** | 83.3% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | **Every 3 weeks** | Every 2 months |
| Monetization | **Ad-supported** | Free with in-app purchases |
| Size | 13 MB | 9 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Adysseus](https://appshunter.io/developer/447444997) | [Joseph Rupertus](https://appshunter.io/developer/1610637143) |

## What reviewers say

### BIG CALCULATOR.

[App page](https://appshunter.io/ios/app/big-calculator/id1114392920)

This utility app offers a straightforward and visually clear calculator experience, ideal for users of all ages. Its large numbers and dark interface enhance readability, while landscape mode support on iPhones and iPads provides added convenience.

**Highlights:** Large numbers for easy viewing, Simple and easy-to-see interface, Landscape mode support, Dark UI for eye comfort, Suitable for all ages

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Big Calculator Plus | $2.99 | per year |


### 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 BIG CALCULATOR. free?

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

### Is Omega Calculator free?

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

### Which has better reviews, BIG CALCULATOR. or Omega Calculator?

Omega Calculator is rated higher. BIG CALCULATOR. averages 4.6 out of 5 from 70 ratings, while Omega Calculator averages 4.7 from 44 ratings.

### Do BIG CALCULATOR. or Omega Calculator have ads?

BIG CALCULATOR. shows ads; Omega Calculator does not.

### Which is updated more often, BIG CALCULATOR. or Omega Calculator?

BIG CALCULATOR. ships an update every 3 weeks, and Omega Calculator every 2 months. Most recently, BIG CALCULATOR. was updated on November 6, 2026 and Omega Calculator on November 3, 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.*