# Designable Calculator vs CalcKing Pro

Designable Calculator and CalcKing Pro are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. Designable Calculator sells 1 in-app purchase, starting at $9.99 per year and CalcKing Pro sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Designable Calculator ships an update every 11 days, CalcKing Pro weekly. The most recent releases landed on October 30, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Designable Calculator | CalcKing Pro |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 11 days | **Weekly** |
| Size | 19 MB | 2 MB |
| Requires iOS | 16.0 | **15.0** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Batbayar Batbaatar](https://appshunter.io/developer/1082290586) | [文娟 唐](https://appshunter.io/developer/1870722016) |

## What reviewers say

### Designable Calculator

[App page](https://appshunter.io/ios/app/designable-calculator/id6587561422)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Plan | $9.99 | per year |


### 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 Designable Calculator free?

Designable 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 Designable Calculator or CalcKing Pro have ads?

Neither Designable Calculator nor CalcKing Pro shows ads.

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

Designable Calculator ships an update every 11 days, and CalcKing Pro weekly. Most recently, Designable 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.*