A NEC® 2017 Quick Reference
by Alan Cave
- Reference
- Paid
- Zombie
- Rating
- 3.7
- 25 ratings
- Top 87%among 234 Reference apps
- Last update
- Aug 28, 2017
- Version 1.0
- Size
- 31 MB
- Category
- Reference
- Tracked since
- Oct 10, 2026
Estimated revenue
A model estimate with a likely range, not a reported figure.
No estimate. Apps outside the grossing charts, and some countries, have no reliable rank-to-revenue curve, so we show nothing rather than a guess.
How this estimate is made
Rank: we take the app's best Top Grossing rank on the latest chart day. Category ranks are converted into an equivalent overall rank, because a #10 in Finance earns far less than a #10 overall.
Curve: that equivalent rank is read off a rank-to-revenue curve anchored on public company revenue and market-data reports for the US iPhone App Store.
Country: the curve is scaled per country (Japan is roughly a third of the US, Türkiye under 1%). Where we have no scale, such as China, there is no estimate.
Range: the likely range widens with country, category and chart depth. It is a plausible span, not a statistical confidence interval.
Not included: ads, payments outside the App Store, and any difference between gross sales and what the developer keeps. Low confidence means indirect data; medium means several independent sources agree.
Full methodScreenshots
As shown on the App Store listing.
About this app
Text from the App Store listing.
New app based on 2017 Edition of NEC®.
NEC® refers to National Electrical Code®. NEC® and National Electrical Code® are trademarks of the NFPA. The author of this app is not affiliated with the NFPA.
NEC Quick Reference iPhone app was created to make the most commonly used information in the National Electrical Code® readily accessible on your phone.
It is ideal for electrical engineers and electricians who frequently refer to this information while in the office or at a construction site.
There is no substitute for careful engineering judgment and thorough knowledge of the code.
Feel free to email comments and suggestions to [email protected]
Rank history
Daily position in the US charts. #1 is at the top.
- Best rank
- #34
- Current rank
- #34
- Days charting
- 7 of 7
On the charts today
Small & simple score
How realistic it is for a small team to build something like this.
78/100
Not flagged as small & simple
- Developer size10% · 25
Developer: 5 apps on the charts
- Audience size100% · 20
Ratings: 25
- App size100% · 10
Size: 31 MB
- Price model100% · 15
Price model: paid
- Demand proof100% · 30
Best rank #1, 12 countries
An indicator, not a fact. We can't see team size. Calculated Oct 24, 2026 · method i2
How the score worksGap check · UK
Is this US chart app missing in UK?
Store check Oct 20, 2026
This is a candidate, not a verdict. Charts show at most 100 apps, so not charting does not mean no demand. Check the UK store before you decide.
See all gapsVersion history
- 1.0LatestReleased Aug 28, 2017