# OmniCounter

> Advanced calculator app with extensive mathematical functions and customizable input. (iPhone/iPad app by 留传 于.)

- Source: https://appshunter.io/ios/app/omnicounter/id1569846314 (this page in markdown: same URL + `.md`)
- Developer: [留传 于](https://appshunter.io/developer/1569844705)
- Category: Utilities, Productivity
- Price: Free with in-app purchases
- Rating: 5.00/5 from 4 App Store ratings · 1 written reviews indexed
- Age rating: 4+
- Requires: iOS 13.0 · 14 MB
- Languages: English
- Released: 2021-06-24
- Data updated: 2026-06-01
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/omnicounter/id1569846314/reviews.md

## What is OmniCounter?

It's a Fully Functional Calculator that supports basic, scientific, trigonometry, algebra, calculus, combinatorics, datetime, economics, geometry, matrix, vector, number theory, statistics, and so on. 
· This App is permanently ad-free.
· This App uses a powerful computing engine to support up to a dozen categories of computing, including basic, scientific, trigonometry, algebra, calculus, combinatorics, datetime, economics, geometry, matrix, vector, number theory, statistics, and more. 
· This app provides a customized keyboard that supports automatic completion and parameter prompts. In addition, the app also supports the system to include input from other third-party keyboards.
· This app supports binary, octal, decimal, binary, and hex inputs and outputs.
· This app beautifies the input expressions in different colors and spaces.
· This app offers optional historical features (on by default).
· This app supports the copying of inputs and outputs.
· This app provides a number of configurable parameters.
· This app was ingeniously built all by myself.

## Key features

- 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

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Calculus | $2.99 | one-time |
| Combinatorics | $2.99 | one-time |
| Datetime | $0.99 | 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 |


## Recent user reviews (1 of 1)

All indexed reviews: https://appshunter.io/ios/app/omnicounter/id1569846314/reviews.md

### 5/5 — A nice calculator to use

*2021-06-25*

It’s good to see a calculator with all these functions and no ads!

**Developer response:** Thank you for your loving it.

## Frequently asked questions about OmniCounter

### What mathematical functions does OmniCounter support?

OmniCounter supports a wide range of functions including basic, scientific, trigonometry, algebra, calculus, combinatorics, datetime, economics, geometry, matrix, vector, number theory, and statistics.

### Does OmniCounter have ads?

No, OmniCounter is permanently ad-free, providing an uninterrupted calculation experience.

### What input bases can OmniCounter handle?

OmniCounter supports binary, octal, decimal, and hexadecimal inputs and outputs, offering flexibility for various numerical systems.

### Can I use my own keyboard with OmniCounter?

Yes, OmniCounter supports input from third-party keyboards in addition to its own customized keyboard, which features automatic completion and parameter prompts.

### Is OmniCounter available on Android?

Based on the provided data, OmniCounter is available on iPhone, iPad, and iPod.

### How often is OmniCounter updated?

The latest version is 1.2, released on February 4, 2022. The app was initially released on June 24, 2021.

### What is the age rating for OmniCounter?

OmniCounter has an age rating of 4+, making it suitable for a wide range of users.

### Does OmniCounter have a history feature?

Yes, OmniCounter offers optional historical features that are enabled by default, allowing you to review past calculations.

## Version history (last 3 releases)

### 1.2 — 2022-02-04

Minor UI updates and support iOS 15

### 1.1 — 2021-07-18

Adapt to iPad

### 1.0 — 2021-06-25

No release notes.

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## Related topics

[omnicounts](https://appshunter.io/ios/topics/omnicounts) · [omnicounter](https://appshunter.io/ios/topics/omnicounter) · [ommicounts](https://appshunter.io/ios/topics/ommicounts)

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-01.*