# Calc² vs OmniCounter

The clearest difference is in-app purchases: Calc² at none against OmniCounter's 10. Calc² also leads on update cadence (every 11 days vs every 4 months) and iOS requirement (11.2 vs 13.0). On price, rating, ratings volume and ads there is nothing between them.

Both are free to download. OmniCounter sells 10 one-off in-app purchases. Calc² asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for Calc² against 5.0 for OmniCounter. Both are backed by a comparable volume of ratings — 2 and 4 respectively.

Calc² ships an update every 11 days, OmniCounter every 4 months. The most recent releases landed on August 16, 2026 and June 1, 2026 respectively.

## The numbers

| Metric | Calc² | OmniCounter |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (2 ratings)](https://appshunter.io/ios/app/calc/id1330270164/reviews) | [5.0 (4 ratings)](https://appshunter.io/ios/app/omnicounter/id1569846314/reviews) |
| Number of ratings | 2 | **4** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 11 days** | Every 4 months |
| Monetization | Free | Free |
| Size | 24 MB | 14 MB |
| Requires iOS | **11.2** | 13.0 |
| Devices | **iPhone, iPad, iPod, Apple Watch** | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Manar Alhamdy](https://appshunter.io/developer/886179203) | [留传 于](https://appshunter.io/developer/1569844705) |

## What reviewers say

### Calc²

[App page](https://appshunter.io/ios/app/calc/id1330270164)

A customizable, one-handed calculator designed for iPad. Easily switch layouts for left-handed use and adjust decimal places and animations. Personalize themes that also change the app icon.

**Highlights:** One-handed typing support, Left-handed layout option, Copy/Paste functionality, Calculation history, Customizable themes and app icons, Adjustable decimal places, Adjustable animations

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases:** none


### OmniCounter

[App page](https://appshunter.io/ios/app/omnicounter/id1569846314)

This app is a comprehensive calculator with support for basic, scientific, and advanced mathematical functions. It features a customizable keyboard, multiple input bases, and expression beautification. Enjoy a powerful, ad-free calculation experience.

**Highlights:** Supports over a dozen computing categories, Customizable keyboard with auto-completion, Multiple input bases (binary, octal, decimal, hex), Beautified input expressions, Optional historical features, Copy inputs and outputs

**Features:** macOS Compatibility

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Datetime | $0.99 | one-time |
| Calculus | $2.99 | one-time |
| Combinatorics | $2.99 | one-time |
| Economics | $2.99 | one-time |
| Geometry | $2.99 | one-time |
| Matrix & Vector | $2.99 | one-time |
| SpecialFunction | $2.99 | one-time |
| NumberTheory | $2.99 | one-time |
| Statistics | $2.99 | one-time |
| Trigonometry | $2.99 | one-time |


## Frequently asked questions

### Is Calc² free?

Calc² is free to download, with no in-app purchases.

### Is OmniCounter free?

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

### Which has better reviews, Calc² or OmniCounter?

Calc² and OmniCounter are both rated 5.0 out of 5 on the App Store, from 2 and 4 ratings respectively.

### Do Calc² or OmniCounter have ads?

Neither Calc² nor OmniCounter shows ads.

### Which is updated more often, Calc² or OmniCounter?

Calc² ships an update every 11 days, and OmniCounter every 4 months. Most recently, Calc² was updated on August 16, 2026 and OmniCounter on June 1, 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.*