OmniCounter vs kong calculator
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
OmniCounter
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.
- 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
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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.
kong calculator
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It is a simple calculator that provides a calculation history function.
Screenshots
Verdict
The clearest difference is in-app purchases: kong calculator at none against OmniCounter's 10. kong calculator also leads on update cadence (every 4 days vs every 4 months). OmniCounter's advantage is ads (none vs shown) and iOS requirement (13.0 vs 15.0). On price and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. OmniCounter sells 10 one-off in-app purchases. kong calculator asks for nothing beyond the download.
OmniCounter ships an update every 4 months, kong calculator every 4 days. The most recent releases landed on October 24, 2026 and October 27, 2026 respectively.
| Parameter | OmniCounter | kong calculator |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (4 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 4 — better | — |
| Update frequency | Every 4 months | Every 4 days — better |
| Ads | No — better | Yes |
| In-app purchases | Yes | No — better |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 13.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 14 MB | 20 MB |
| Age rating | 4+ | 4+ |
| Developer | 留传 于 | Changyeol Seo |
In-app purchases
OmniCounter
- Datetime$0.99
- Calculus$2.99
- Combinatorics$2.99
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- Economics$2.99
- Geometry$2.99
- Matrix & Vector$2.99
- SpecialFunction$2.99
- NumberTheory$2.99
- Statistics$2.99
- Trigonometry$2.99
kong calculator
No in-app purchases
