# KuCalc vs SmartCalc+ Science Calculator

The clearest difference is in-app purchases: KuCalc at none against SmartCalc+ Science Calculator's 2. KuCalc also leads on ads (none vs shown) and iOS requirement (11.0 vs 16.6). SmartCalc+ Science Calculator's advantage is update cadence (every 5 weeks vs every 3 months). On price and device support there is nothing between them.

Both are free to download. SmartCalc+ Science Calculator sells 2 in-app purchases, starting at $0.99 per 7 days. KuCalc asks for nothing beyond the download.

KuCalc ships an update every 3 months, SmartCalc+ Science Calculator every 5 weeks. The most recent releases landed on October 7, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | KuCalc | SmartCalc+ Science Calculator |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 3 months | **Every 5 weeks** |
| Size | 1 MB | 9 MB |
| Requires iOS | **11.0** | 16.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 17+ | 4+ |
| Developer | [Mineaki Sakatoku](https://appshunter.io/developer/1674976728) | [Retenica SP Z.O.O](https://appshunter.io/developer/1715674718) |

## What reviewers say

### KuCalc

[App page](https://appshunter.io/ios/app/kucalc/id6445941447)

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

**In-app purchases:** none


### SmartCalc+ Science Calculator

[App page](https://appshunter.io/ios/app/smartcalc-plus-science-calculator/id6483847331)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Premium Access | $0.99 | per 7 days |
| Annual Premium Access | $9.99 | per year |


## Frequently asked questions

### Is KuCalc free?

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

### Is SmartCalc+ Science Calculator free?

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

### Do KuCalc or SmartCalc+ Science Calculator have ads?

SmartCalc+ Science Calculator shows ads; KuCalc does not.

### Which is updated more often, KuCalc or SmartCalc+ Science Calculator?

KuCalc ships an update every 3 months, and SmartCalc+ Science Calculator every 5 weeks. Most recently, KuCalc was updated on October 7, 2026 and SmartCalc+ Science Calculator on October 24, 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.*