# Calculator vs CalcKing Pro

The clearest difference is ads: CalcKing Pro at none against Calculator's shown. Calculator's advantage is update cadence (daily vs weekly) and device support (4 vs 2). On price and in-app purchases there is nothing between them.

Both are free to download. Calculator sells 1 one-off in-app purchase and CalcKing Pro sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Calculator ships an update daily, CalcKing Pro weekly. The most recent releases landed on October 30, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Calculator | CalcKing Pro |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/calculator-visual-math/id6747378943/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | **Daily** | Weekly |
| Monetization | Free with in-app purchases | — |
| Size | 140 MB | 2 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Vladislav Alikov](https://appshunter.io/developer/1603123547) | [文娟 唐](https://appshunter.io/developer/1870722016) |

## What reviewers say

### Calculator

[App page](https://appshunter.io/ios/app/calculator-visual-math/id6747378943)

This app transforms complex mathematical formulas into interactive computational graphs, allowing users to visualize and understand the logic behind calculations. It offers both scientific and boolean logic modes, with real-time editing capabilities for "what-if" analysis.

**Highlights:** Visualize math as node-based graphs, Interactive graph editing, Scientific calculator mode, Boolean logic solver, Save and load expressions, Customizable themes

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Support the App and remove Ads | $1.99 | one-time |


### CalcKing Pro

[App page](https://appshunter.io/ios/app/calcking-pro-professional/id6758431895)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 解锁功能 | $3.99 | one-time |


## Frequently asked questions

### Is Calculator free?

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

### Is CalcKing Pro free?

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

### Do Calculator or CalcKing Pro have ads?

Calculator shows ads; CalcKing Pro does not.

### Which is updated more often, Calculator or CalcKing Pro?

Calculator ships an update daily, and CalcKing Pro weekly. Most recently, Calculator was updated on October 30, 2026 and CalcKing Pro 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.*