Comparison

Electrical Engineering vs WS Drill Bits

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Electrical Engineering

This app offers a comprehensive suite of electrical calculations and conversions for professionals and students. It handles diverse units and provides precise results for various electrical engineering tasks, including voltage, current, power, and more.

Highlights
  • 60 Electrical Calculators
  • 16 Electrical Converters
  • Voltage, Current, Resistance, Power calculations
  • kVA to Amps and Amps to kVA conversions
  • Single and Three Phase Power calculations
  • Star to Delta & Delta to Star conversions
  • Unit handling for diverse electrical measurements
Features
Read full description

Unlock the Power of Electrical Calculations! Access 60 Electrical Calculators, 16 Electrical Converters, and comprehensive formulas with multiple units as an in-app purchase. Key Features: • Voltage Calculator • Current Calculator • Resistance Calculator • Power Calculator • (Includes Voltage Drop Calculator - NEW!) • kVA to Amps (Single Phase & Three Phase) • Amps to kVA (Single Phase & Three Phase) • Single Phase & Three Phase Power Calculators • Horsepower Calculators (DC, Single Phase, Three Phase) • Efficiency Calculators (DC, Single Phase, Three Phase) • Power Factor Calculators (Single Phase & Three Phase) • Luminous Intensity and Flux Calculators • Energy Storage Calculators (Resistance, Inductance, Capacitance) • Star to Delta & Delta to Star Conversions • Reactance Calculators (Inductive & Capacitive) • Resonant Frequency, Inductor & Capacitor Sizing Equations • Series and Parallel Resistance, Inductance, and Capacitance Calculators • Unknown Resistance and Capacitance Calculations • Neutral Current for 3-Phase Unbalanced Loads • Characteristic Impedance Calculations (Parallel & Coaxial) • Transformer Calculator • Voltage Divider & RMS Calculations ...and much more! Why Choose This App? Whether your input is in amps or milliamps, volts or kilovolts, or watts or kilowatts, the App seamlessly handles diverse units and provides precise results with multiple unit options. Perfect for professionals and students alike! Electrical Converters • Field Strength Converter • Electrical Potential Converter • Resistance and Resistivity Converters • Conductance and Conductivity Converters • Capacitance and Inductance Converters • Charge Converters: Handles conversions for electrical charge, including: • Linear Charge Density • Surface Charge Density • Volume Charge Density • Linear Current Density • Surface Current Density • Power Converter

About

WS Drill Bits

This application serves machinists, designers, and manufacturing personnel with essential drill bit calculations. It features a comprehensive drill size chart with decimal equivalents, a calculator for optimal speeds and feeds across various materials, and a tool for determining drill point depth based on angle.

Highlights
  • Drill size and decimal equivalent chart
  • Fast vertical scrolling with color-coded values
  • Sliding scale for quick list navigation
  • Speeds and feeds calculator for various materials
  • Drill point depth calculator
  • Supports metric and inch measurements
Features
Read full description

Workshop (WS) Drill Bits Is a full functioning Drill Bit Calculator simply designed for the Machinists Workshop, Designer's and Manufacturing Personel. Contains the following three functions: 1) A vertical scrolling Drill Size and Decimal Equivalent Chart. *From 0.1mm(0.00394 Inch) to 101.6mm(4.0 Inches) *Offers Fast Vertical Scrolling *Inch Fractions are highlighted in Blue *Metric Numbers are highlighted in Red *Gage/Letter Numbers are also listed *Inch Fractions values are also listed. *A sliding scale allows you to jump to any point on the list fast.(Separately for both mm and inch values) 2) Twist Drill Speeds and Feeds *Calculates recommended Drill Speeds and Feed Rates for various materials: *Option to enter in either Metric or Inch size Drills -Aluminium -Brass -Bronze -Cast Iron -Hastelloy -Inconel -Magnesium -Monel -High Nickel Steel -Free Cutting Steel -Mild Steel -Steel -Tool Steel -Forgings -Alloys -Heat Treated Steels -Stainless Steels -Titanium -Wood and Plastics 3) Drill Point Depth Calculator *Calculates the Drill Point Depth for various Drill Point Angles (60',82',90',118',120',135') *Option to enter in either Metric or Inch size Drills.

Screenshots

Electrical Engineering4 screens
WS Drill Bits4 screens

Verdict

The call

The clearest difference is in-app purchases: WS Drill Bits at none against Electrical Engineering's 2. WS Drill Bits also leads on ads (none vs shown) and rating (5.0 vs 4.7). Electrical Engineering's advantage is ratings volume (252 vs 2) and update cadence (every 4 months vs every 16 months). On price and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Electrical Engineering sells 2 one-off in-app purchases. WS Drill Bits asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

WS Drill Bits holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: Electrical Engineering has 252 ratings behind it against 2, so its average is the more settled of the two.

UpkeepUpdate frequency

Electrical Engineering ships an update every 4 months, WS Drill Bits every 16 months. The most recent releases landed on September 27, 2026 and June 10, 2026 respectively.

Scorecard7 real differences · 3 level
Electrical Engineering versus WS Drill Bits: the parameters behind the verdict, then further details
ParameterElectrical EngineeringWS Drill Bits
PriceFreeFree
Rating4.7 (252 ratings)5.0 (2 ratings) — better
Positive reviews33.3% of reviews—
Number of ratings252 — better2
Update frequencyEvery 4 months — betterEvery 16 months
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS17.69.0 — better
Further details — not scored
Size49 MB57 MB
Age rating4+4+
DeveloperV PUGAZHENTHIRein Rapp

Customer experience

Electrical Engineering

All ratings252 ratings
Positive94.0%
Neutral2.0%
Negative4.0%
Written reviews12 reviews
Positive33.3%
Neutral0.0%
Negative66.7%

WS Drill Bits

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

2 purchases

Electrical Engineering

One-time2
  • 16 Electrical Converters$0.99
  • Electrical Engineering Pack$3.99
None

WS Drill Bits

No in-app purchases

Questions

Is Electrical Engineering free?
Electrical Engineering is free to download, with in-app purchases available.
Is WS Drill Bits free?
WS Drill Bits is free to download, with no in-app purchases.
Which has better reviews, Electrical Engineering or WS Drill Bits?
WS Drill Bits is rated higher. Electrical Engineering averages 4.7 out of 5 from 252 ratings, while WS Drill Bits averages 5.0 from 2 ratings.
Do Electrical Engineering or WS Drill Bits have ads?
Electrical Engineering shows ads; WS Drill Bits does not.
Which is updated more often, Electrical Engineering or WS Drill Bits?
Electrical Engineering ships an update every 4 months, and WS Drill Bits every 16 months. Most recently, Electrical Engineering was updated on September 27, 2026 and WS Drill Bits on June 10, 2026.

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