# SI To USCS unit Conversion vs A NEC® 2017 Quick Reference

The clearest difference is review sentiment: SI To USCS unit Conversion at 100% against A NEC® 2017 Quick Reference's 33%. SI To USCS unit Conversion also leads on price (Free vs $1.99) and rating (5.0 vs 3.7). A NEC® 2017 Quick Reference's advantage is ratings volume (25 vs 1) and chart position (#32 vs unranked). On ads, in-app purchases and device support there is nothing between them.

SI To USCS unit Conversion is free to download; A NEC® 2017 Quick Reference costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

SI To USCS unit Conversion holds the better App Store score, 5.0 against 3.7. That said, the two scores are not equally well evidenced: A NEC® 2017 Quick Reference has 25 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 100% of SI To USCS unit Conversion's written reviews are positive against 33% of A NEC® 2017 Quick Reference's.

## The numbers

| Metric | SI To USCS unit Conversion | A NEC® 2017 Quick Reference |
| --- | --- | --- |
| Price | **Free** | $1.99 |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/si-to-uscs-unit-conversion/id502598595/reviews)** | [3.7 (25 ratings)](https://appshunter.io/ios/app/a-nec-2017-quick-reference/id1237302023/reviews) |
| Number of ratings | 1 | **25** |
| Positive reviews | **100.0% of reviews** | 33.3% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 10 months | — |
| Monetization | **Free** | Paid |
| Best chart rank | — | **#32** |
| Size | 1 MB | 29 MB |
| Requires iOS | 14.3 | **8.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Muralidhar Shenoy](https://appshunter.io/developer/460148822) | [Alan Cave](https://appshunter.io/developer/474647608) |

## What reviewers say

### SI To USCS unit Conversion

[App page](https://appshunter.io/ios/app/si-to-uscs-unit-conversion/id502598595)

This app facilitates quick unit conversions between SI and USCS/Imperial systems for engineering applications. It covers 18 major categories, including mass, length, volume, and thermodynamics properties. Users can input data and generate conversion tables.

**Highlights:** SI to USCS/Imperial unit conversion, 18 major unit categories, Engineering and applied science focus, Data input and conversion, Conversion table generation, Gas flow rate conversion

**Features:** macOS Compatibility

**In-app purchases:** none


### A NEC® 2017 Quick Reference

[App page](https://appshunter.io/ios/app/a-nec-2017-quick-reference/id1237302023)

**Currently charting:** #32 Top Paid · Reference (US App Store)

This app provides quick access to commonly used information from the 2017 National Electrical Code (NEC). It's designed for electrical engineers and electricians needing on-the-go reference material for office or construction site use.

**Highlights:** 2017 NEC Edition content, Quick access to common information, Designed for electrical professionals, Mobile reference tool, Office and construction site use

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

**In-app purchases:** none


## Frequently asked questions

### Is SI To USCS unit Conversion free?

SI To USCS unit Conversion is free to download, with no in-app purchases.

### Is A NEC® 2017 Quick Reference free?

A NEC® 2017 Quick Reference costs $1.99, with no in-app purchases.

### Which has better reviews, SI To USCS unit Conversion or A NEC® 2017 Quick Reference?

SI To USCS unit Conversion is rated higher. SI To USCS unit Conversion averages 5.0 out of 5 from 1 ratings, while A NEC® 2017 Quick Reference averages 3.7 from 25 ratings.

### Do SI To USCS unit Conversion or A NEC® 2017 Quick Reference have ads?

Neither SI To USCS unit Conversion nor A NEC® 2017 Quick Reference shows ads.

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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.*