# CalcKX vs Smart Calc+

CalcKX and Smart Calc+ 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. Neither carries in-app purchases, so what you see is what you pay.

CalcKX ships an update every 4 days, Smart Calc+ every 3 days. The most recent releases landed on October 17, 2026 and September 29, 2026 respectively.

## The numbers

| Metric | CalcKX | Smart Calc+ |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 days | **Every 3 days** |
| Size | 1 MB | 22 MB |
| Requires iOS | 14.1 | **13.4** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Martin Kowollik](https://appshunter.io/developer/1496665932) | [Rahman Usta](https://appshunter.io/developer/1750311538) |

## What reviewers say

### CalcKX

[App page](https://appshunter.io/ios/app/calckx/id1583409123)

**Features:** macOS Compatibility

**In-app purchases:** none


### Smart Calc+

[App page](https://appshunter.io/ios/app/smart-calc-plus/id6504203262)

**In-app purchases:** none


## Frequently asked questions

### Is CalcKX free?

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

### Is Smart Calc+ free?

Smart Calc+ is free to download, with no in-app purchases.

### Do CalcKX or Smart Calc+ have ads?

Neither CalcKX nor Smart Calc+ shows ads.

### Which is updated more often, CalcKX or Smart Calc+?

CalcKX ships an update every 4 days, and Smart Calc+ every 3 days. Most recently, CalcKX was updated on October 17, 2026 and Smart Calc+ on September 29, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*