# OmniCounter vs ReadableCalc

The clearest difference is in-app purchases: ReadableCalc at none against OmniCounter's 10. ReadableCalc also leads on update cadence (weekly vs every 4 months). On price, ads, device support and iOS requirement there is nothing between them.

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

OmniCounter ships an update every 4 months, ReadableCalc weekly. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | OmniCounter | ReadableCalc |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (4 ratings)](https://appshunter.io/ios/app/omnicounter/id1569846314/reviews)** | — |
| Number of ratings | **4** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 4 months | **Weekly** |
| Monetization | Free | — |
| Size | 14 MB | 28 MB |
| Requires iOS | 13.0 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [留传 于](https://appshunter.io/developer/1569844705) | [YONAGARE LAB](https://appshunter.io/developer/1810986554) |

## What reviewers say

### 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 |


### ReadableCalc

[App page](https://appshunter.io/ios/app/readablecalc/id6747457253)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is OmniCounter free?

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

### Is ReadableCalc free?

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

### Do OmniCounter or ReadableCalc have ads?

Neither OmniCounter nor ReadableCalc shows ads.

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

OmniCounter ships an update every 4 months, and ReadableCalc weekly. Most recently, OmniCounter was updated on October 24, 2026 and ReadableCalc on October 25, 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.*