# SmartCalc+ Science Calculator vs PrefixCalc

The clearest difference is in-app purchases: PrefixCalc at none against SmartCalc+ Science Calculator's 2. PrefixCalc also leads on ads (none vs shown) and iOS requirement (12.0 vs 16.6). 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. PrefixCalc asks for nothing beyond the download.

## The numbers

| Metric | SmartCalc+ Science Calculator | PrefixCalc |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 5 weeks | — |
| Size | 9 MB | 28 MB |
| Requires iOS | 16.6 | **12.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Retenica SP Z.O.O](https://appshunter.io/developer/1715674718) | [YONAGARE LAB](https://appshunter.io/developer/1810986554) |

## What reviewers say

### 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 |


### PrefixCalc

[App page](https://appshunter.io/ios/app/prefixcalc/id6748650037)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is SmartCalc+ Science Calculator free?

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

### Is PrefixCalc free?

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

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

SmartCalc+ Science Calculator shows ads; PrefixCalc does not.

---

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