# kong calculator vs Calculator for Complex Field

The clearest difference is ads: Calculator for Complex Field at none against kong calculator's shown. kong calculator's advantage is update cadence (every 4 days vs fortnightly) and iOS requirement (15.0 vs 17.0). On price, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

kong calculator ships an update every 4 days, Calculator for Complex Field fortnightly. The most recent releases landed on November 3, 2026 and November 4, 2026 respectively.

## The numbers

| Metric | kong calculator | Calculator for Complex Field |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (4 ratings)](https://appshunter.io/ios/app/calculator-for-complex-field/id6502463794/reviews)** |
| Number of ratings | — | **4** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | **Every 4 days** | Fortnightly |
| Monetization | — | Free |
| Size | 20 MB | 1 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Changyeol Seo](https://appshunter.io/developer/551904752) | [Jongseung Park](https://appshunter.io/developer/1745560101) |

## What reviewers say

### kong calculator

[App page](https://appshunter.io/ios/app/kong-calculator/id1594969449)

**Features:** macOS Compatibility

**In-app purchases:** none


### Calculator for Complex Field

[App page](https://appshunter.io/ios/app/calculator-for-complex-field/id6502463794)

Input natural math expressions and get instant results on a separate line, allowing for easy revisions. Save up to 20 inputs and incorporate saved answers into new expressions. Supports complex field calculations with adjustable decimal digits and three output formats.

**Highlights:** Natural math expression input, Automatic result display, Input revision for updated results, Save and reuse up to 20 inputs, Incorporate saved answers into expressions, Complex field calculations, Adjustable decimal digits, Three output formats (Fixed, Scientific, Engineering)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is kong calculator free?

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

### Is Calculator for Complex Field free?

Calculator for Complex Field is free to download, with no in-app purchases.

### Do kong calculator or Calculator for Complex Field have ads?

kong calculator shows ads; Calculator for Complex Field does not.

### Which is updated more often, kong calculator or Calculator for Complex Field?

kong calculator ships an update every 4 days, and Calculator for Complex Field fortnightly. Most recently, kong calculator was updated on November 3, 2026 and Calculator for Complex Field on November 4, 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.*