2017 Master Electrician Ref. Downloads & Revenue2017 Master Electrician Ref. · App Store
2017 Master Electrician Ref. is #59 in Productivity Paid in United States and charting in 1 of 30 countries we track.
Updated 8 Nov 2026 · rankings refresh through the day
DeveloperPawEng, LLC
CategoryProductivity
Price9.99 USD
Released
Rating★ 4.7 (1.3k)
Version2.0.8
Age rating12+
First seen by us
29 Sep 2026
29 Sep 2026Installs (est.)50k+ worldwide
2017 Master Electrician Ref. update history & changes
Last change · 12 events since 11 Sep 2017Full timeline ↓⭐Passed 100 ratings⭐Passed 1K ratings📈Entered the top 100📈New best rank in the overall chart: #131🆕First spotted by AppInsider🆕Released on the App Store
Full timeline · 11 events in the last 12 months
- 📈2017 Master Electrician Ref. entered the top 100Top Paid · Productivity · TR
- 📈2017 Master Electrician Ref. new best rank in the overall chart: #131Top Paid · All Apps · TR
- 📈2017 Master Electrician Ref. charting in a new countryTurkey
- 📈2017 Master Electrician Ref. entered the top 100Top Paid · Productivity · AU
- 📈2017 Master Electrician Ref. charting in a new countryAustralia
- 🆕2017 Master Electrician Ref. first spotted by AppInsider#66 in Top Paid · Productivity · United States
- 🆕2017 Master Electrician Ref. released on the App Store
Collected from the stores by AppInsider since we first spotted the app. Dates are when we saw each change.
Rating
4.7 ★
1.3k ratings
Measured
Best rank now
#59
Productivity PaidMeasured
New ratings a week
1.2
App Store, 4-week average
Measured
2017 Master Electrician Ref. on the App Store
App details
App ID
1275949959
Publisher
PawEng, LLC
On the store since
Sep 2017
9 years on the store
Minimum OS
iOS 12.0+
iPhone 5s and later
Devices
iPhone · iPad
Universal purchase
Content rating
12+
1 content note below
Languages
1
EN
Size
49 MB
Also listed in
Utilities
Content notesInfrequent/Mild Medical/Treatment Information
2017 Master Electrician Ref. downloads
Worldwide, per day, and installs to date. The band is open; the exact number is free with an account.
How this is calculated
Apple publishes no download counts. App Store downloads come from chart positions and daily rating growth per country, calibrated on Google Play install counts; lifetime installs from ratings worldwide × installs per rating. Confidence is the chance the real number is within half to double ours.
Where 2017 Master Electrician Ref.'s downloads come from Modelled
Last 30 days: organic search, browsing the store, features and paid ads.
Active users
All platforms, worldwide. Free with an account.
Stickiness (DAU / MAU)
how many monthly users open it on a given day
How this is calculated
Monthly users come from lifetime installs across every store, fitted on monthly active user figures companies publish; daily users = monthly × the typical daily/monthly ratio for the category. Confidence is the chance the real number is within half to double ours.
Where it ranks now
Every top chart it appears in across 30 countries.
| Country | Charts | Rank |
|---|---|---|
| United States | ProductivityPaid | #59 |
Apps near 2017 Master Electrician Ref. on the chart
Productivity Paid, around #59.
Ratings
App Store, worldwide.
Rating
4.7 ★
1.3k ratings
Measured
Ratings
1.3k
Measured
Review momentum
ⓘ How we measure thisNew ratings a week
1.2
4-week average
Lifetime rating
4.7★
recent stars not readable yet: new ratings are a tiny share of the total
Review momentum
57/100
faster than 62% of Productivity apps
Review momentum (0-100) blends how fast the app collects ratings compared with other apps in its category (60%), whether that pace is speeding up (25%) and what recent raters give it (15%; recent stars well below lifetime pull it down). Ratings counts are read daily. A jump usually means a launch, a feature, ads or a new review prompt.
What users say about 2017 Master Electrician Ref.
From the 21 most recent App Store reviews in the US.
Mixed but leaning positive (62% of recent reviews give 4–5 stars). People like it for being easy to use, and being useful. The main complaints are about price and subscriptions, and recent updates. Recent reviews are more positive than earlier ones.
What people like
- Ease of use: “Quick, easy to use and well thought out”
- Useful: “This app is extremely helpful for electrical code references and field calculations”
Common complaints
- Price & subscription: “How do I get my money back?”
- Updates: “The app needs to be updated”
About 2017 Master Electrician Ref.
Master Electrician Reference (or MER for short) 2017 is your electronic pocket electrician reference guide.
MER is for electrical designers, engineers, installers, contractors, facility managers, inspectors, exam candidates, apprentices, electricians, journeymen, architects, and technicians. MER is for people doing residential, industrial, and commercial work. Simply, if you are a Master Sparky or work with electricity in any way, this reference guide is for you!
Have you ever lost pages or had damaged pages in your pocket electricians reference? The solution is here: Use MER to keep the most important information easily accessible on your iPhone, iPod Touch, or iPad. MER will even do calculations for you; something your old pocket reference book can't do.
MER is divided into the following sections:
* Simple Circuits
- Ohm's law, series and parallel circuits, capacitance, inductance, impedance, and reactance.
* Distributed Systems
- Distribution wiring diagrams for 120, 208, 277, and 480 volts, color codes, breaker sizes, light switches and bells diagrams.
* Electrical Formulas
- Formulas for kVA, kW, and HP.
* Color Codes
- Color codes for capacitors and resistors.
* Motors and Wiring
- Standard motor and motor starter sizes, tables of full-load currents, locked-rotor information, overload units, OCPD, nameplate information, synchronous motor speeds, three-phase STAR and DELTA diagrams, three-wire start-stop diagram, motor frame dimensions, and motor enclosure types.
* Transformers
- KVA ratings for single- and three-phase current, transformer formulas.
* Conductor Properties
- Conductor tables, AWG and metric wire sizes, twist-on pressure connectors, and wire combinations.
* Ampacities
- Ampacities in raceway, cable, earth, and free air, and derating tables.
* Conduit Fill table
* Grounding Sizes
- Equipment grounding conductor (EGC) and grounding electrode conductor (GEC).
* Metal Boxes
- Images and sizes of metal boxes, junction / device boxes, junction / pull boxes.
* Voltage Drop calculations
* Dictionary of electrician terms
* Insulation Charts
- Table of cable and wire types
* Electrical Symbols
* NEMA
- Plugs and wiring diagrams, enclosure types, standard underground boxes, standard fuse and breaker sizes, standard pull box / junction sizes, standard gutter and wire-ways, standard switchboards, standard busway, standard busbar ampacity, standard panelboard sizes, and standard disconnect sizes.
* Math and Conversions
- Formulas for algebra, geometry, fractions, temperature conversion, trig tables, unit conversions, metric prefixes, and conversions between inches and millimeters.
* Conduit Bending
- Includes the guide "The Master Bender Way" on how to bend conduit. See the Master Bender app or MasterBender.com website for more information.
* Conduit Weights
* Copper Wire Cost
* Hole Saw Sizes
* Material Raceway Support
* Lighting
- Fluorescent, high-intensity discharge, incandescent,
MER is for electrical designers, engineers, installers, contractors, facility managers, inspectors, exam candidates, apprentices, electricians, journeymen, architects, and technicians. MER is for people doing residential, industrial, and commercial work. Simply, if you are a Master Sparky or work with electricity in any way, this reference guide is for you!
Have you ever lost pages or had damaged pages in your pocket electricians reference? The solution is here: Use MER to keep the most important information easily accessible on your iPhone, iPod Touch, or iPad. MER will even do calculations for you; something your old pocket reference book can't do.
MER is divided into the following sections:
* Simple Circuits
- Ohm's law, series and parallel circuits, capacitance, inductance, impedance, and reactance.
* Distributed Systems
- Distribution wiring diagrams for 120, 208, 277, and 480 volts, color codes, breaker sizes, light switches and bells diagrams.
* Electrical Formulas
- Formulas for kVA, kW, and HP.
* Color Codes
- Color codes for capacitors and resistors.
* Motors and Wiring
- Standard motor and motor starter sizes, tables of full-load currents, locked-rotor information, overload units, OCPD, nameplate information, synchronous motor speeds, three-phase STAR and DELTA diagrams, three-wire start-stop diagram, motor frame dimensions, and motor enclosure types.
* Transformers
- KVA ratings for single- and three-phase current, transformer formulas.
* Conductor Properties
- Conductor tables, AWG and metric wire sizes, twist-on pressure connectors, and wire combinations.
* Ampacities
- Ampacities in raceway, cable, earth, and free air, and derating tables.
* Conduit Fill table
* Grounding Sizes
- Equipment grounding conductor (EGC) and grounding electrode conductor (GEC).
* Metal Boxes
- Images and sizes of metal boxes, junction / device boxes, junction / pull boxes.
* Voltage Drop calculations
* Dictionary of electrician terms
* Insulation Charts
- Table of cable and wire types
* Electrical Symbols
* NEMA
- Plugs and wiring diagrams, enclosure types, standard underground boxes, standard fuse and breaker sizes, standard pull box / junction sizes, standard gutter and wire-ways, standard switchboards, standard busway, standard busbar ampacity, standard panelboard sizes, and standard disconnect sizes.
* Math and Conversions
- Formulas for algebra, geometry, fractions, temperature conversion, trig tables, unit conversions, metric prefixes, and conversions between inches and millimeters.
* Conduit Bending
- Includes the guide "The Master Bender Way" on how to bend conduit. See the Master Bender app or MasterBender.com website for more information.
* Conduit Weights
* Copper Wire Cost
* Hole Saw Sizes
* Material Raceway Support
* Lighting
- Fluorescent, high-intensity discharge, incandescent,
Latest updates
2.0.8
Updated the NEC adoption map. Changed the minimum supported iOS version from 11 to 12.
