Electrical Engineering vs WS Drill Bits
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- 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
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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
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.
- 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
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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
Verdict
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
Both are free to download. Electrical Engineering sells 2 one-off in-app purchases. WS Drill Bits asks for nothing beyond the download.
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.
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.
| Parameter | Electrical Engineering | WS Drill Bits |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (252 ratings) | 5.0 (2 ratings) — better |
| Positive reviews | 33.3% of reviews | — |
| Number of ratings | 252 — better | 2 |
| Update frequency | Every 4 months — better | Every 16 months |
| Ads | Yes | No — better |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 17.6 | 9.0 — better |
| Further details — not scored | ||
| Size | 49 MB | 57 MB |
| Age rating | 4+ | 4+ |
| Developer | V PUGAZHENTHI | Rein Rapp |
Customer experience
Electrical Engineering
WS Drill Bits
In-app purchases
Electrical Engineering
- 16 Electrical Converters$0.99
- Electrical Engineering Pack$3.99
WS Drill Bits
No in-app purchases
Questions
Is Electrical Engineering free?
Is WS Drill Bits free?
Which has better reviews, Electrical Engineering or WS Drill Bits?
Do Electrical Engineering or WS Drill Bits have ads?
Which is updated more often, Electrical Engineering or WS Drill Bits?
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