# CalcTrack vs CalcKing Pro

The clearest difference is in-app purchases: CalcTrack at none against CalcKing Pro's 1. CalcTrack also leads on iOS requirement (13.0 vs 15.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. CalcKing Pro sells 1 one-off in-app purchase. CalcTrack asks for nothing beyond the download.

CalcTrack ships an update every 9 days, CalcKing Pro weekly. Both last shipped on October 25, 2026.

## The numbers

| Metric | CalcTrack | CalcKing Pro |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 9 days | **Weekly** |
| Size | 1 MB | 2 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Barkin Sungu](https://appshunter.io/developer/1643891581) | [文娟 唐](https://appshunter.io/developer/1870722016) |

## What reviewers say

### CalcTrack

[App page](https://appshunter.io/ios/app/calctrack/id6469319850)

**Features:** macOS Compatibility

**In-app purchases:** none


### 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 CalcTrack free?

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

### Is CalcKing Pro free?

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

### Do CalcTrack or CalcKing Pro have ads?

Neither CalcTrack nor CalcKing Pro shows ads.

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

CalcTrack ships an update every 9 days, and CalcKing Pro weekly. Most recently, CalcTrack was updated on October 25, 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.*