Electrical Engineering Pack vs Star
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Electrical Engineering Pack
This app provides a comprehensive suite of electrical calculators and converters for engineers, electricians, and students. It features over 60 calculators for various electrical parameters and 16 converter categories with extensive unit support. Calculations update automatically as input values or units are changed.
- 60+ Electrical Calculators
- 16 Electrical Converter Categories
- Automatic Calculation Updates
- Resistor Color Code Calculator
- Upgraded Voltage Drop Calculator
- NEC/IEEE Standards Compliant
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A complete pack of 60 Electrical Calculators and 16 Electrical Converters — designed for electrical engineers, electricians, and students. Now includes a Resistor Color Code Calculator and an upgraded Voltage Drop Calculator compliant with NEC/IEEE standards. Electrical Calculator List (60) 1. Resistor Color Code Calculator (New) 2. Transformer Calculator (Step-Up and Step-Down Voltage & Current Calculations) 3. Voltage Calculator 4. Current Calculator 5. Resistance Calculator 6. Power Calculator 7. Voltage Drop Calculator (Updated for NEC/IEEE Standards) 8. kVA to Amps (Single Phase) 9. kVA to Amps (Three Phase) 10. Amps to kVA (Single Phase) 11. Amps to kVA (Three Phase) 12. Single Phase Power Calculator 13. Three Phase Power Calculator 14. Single Phase Current Calculator 15. Three Phase Current Calculator 16. DC Horsepower 17. Single Phase Horsepower 18. Three Phase Horsepower 19. DC Current (HP) Calculator 20. Single Phase Current (HP) Calculator 21. Three Phase Current (HP) Calculator 22. Efficiency (DC) Calculator 23. Efficiency (Single Phase) Calculator 24. Efficiency (Three Phase) Calculator 25. Power Factor (Single Phase) Calculator 26. Power Factor (Three Phase) Calculator 27. Luminous Intensity Calculator 28. Luminous Flux Calculator 29. Solid Angle Calculator 30. Energy Cost Calculator 31. Energy Stored (Resistance) Calculator 32. Energy Stored (Inductance) Calculator 33. Energy Stored (Capacitance) Calculator 34. Star to Delta Conversion 35. Delta to Star Conversion 36. Inductive Reactance Calculator 37. Capacitive Reactance Calculator 38. Resonant Frequency Calculator 39. Inductor Sizing Formula 40. Capacitor Sizing Formula 41. Resistance (Series) Calculator 42. Resistance (Parallel) Calculator 43. Inductance (Series) Calculator 44. Inductance (Parallel) Calculator 45. Capacitance (Series) Calculator 46. Capacitance (Parallel) Calculator 47. Unknown Resistance (Series) Calculator 48. Unknown Resistance (Parallel) Calculator 49. Unknown Capacitance (Series) Calculator 50. Unknown Capacitance (Parallel) Calculator 51. Neutral Current (3-Phase Unbalanced Loads) 52. Characteristic Impedance (Parallel) 53. Characteristic Impedance (Coaxial) Electrical Converter Overview The Electrical Converter translates between multiple electrical units and supports both SI and USCS systems. Includes 16 Categories, 173 Units, and over 2,100 conversions. Converter Categories (16): 1. Field Strength 2. Electric Potential 3. Resistance 4. Resistivity 5. Conductance 6. Conductivity 7. Capacitance 8. Inductance 9. Charge 10. Linear Charge Density 11. Surface Charge Density 12. Volume Charge Density 13. Current 14. Linear Current Density 15. Surface Current Density 16. Power Smart Calculation Behavior Calculations update automatically when users change: • Input values • Input units • Output units
Star
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This app provides conversion between star delta electrical networks. Features * Convert resistor star network to delta network * Convert resistor delta network to star network Pro features * Convert capacitor star network to delta network * Convert capacitor delta network to star network * Convert inductor star network to delta network * Convert inductor delta network to star network * Convert impedance star network to delta network * Convert impedance delta network to star network
Screenshots
Verdict
The clearest difference is price: Star at Free against Electrical Engineering Pack's $4.99. Star also leads on iOS requirement (12.0 vs 17.6). Electrical Engineering Pack's advantage is in-app purchases (none vs 1) and update cadence (every 4 months vs every 27 months). On ads 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
Star is free to download; Electrical Engineering Pack costs $4.99 up front. Star sells 1 one-off in-app purchase. Electrical Engineering Pack asks for nothing beyond the download.
Electrical Engineering Pack ships an update every 4 months, Star every 27 months. The most recent releases landed on October 19, 2026 and October 10, 2026 respectively.
| Parameter | Electrical Engineering Pack | Star |
|---|---|---|
| Price | $4.99 | Free — better |
| Rating | 4.7 (76 ratings) — better | — |
| Positive reviews | 75.0% of reviews | — |
| Number of ratings | 76 — better | — |
| Update frequency | Every 4 months — better | Every 27 months |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Paid | — |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 17.6 | 12.0 — better |
| Further details — not scored | ||
| Size | 14 MB | 3 MB |
| Age rating | 4+ | 4+ |
| Developer | V PUGAZHENTHI | Siu Yuen Ho |
In-app purchases
Electrical Engineering Pack
No in-app purchases
Star
- Unlock Pro feature$1.99
Questions
Is Electrical Engineering Pack free?
Is Star free?
Do Electrical Engineering Pack or Star have ads?
Which is updated more often, Electrical Engineering Pack or Star?
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