Electronics Engineer Helper vs Magtrol
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Electronics Engineer Helper
This app provides a comprehensive suite of calculators and reference tools for electronics enthusiasts and professionals. It includes features for component identification, circuit calculations, and electrical property analysis, aiding in both study and practical work.
- Datasheet search
- Resistor color code calculator
- Electronic schematic symbols
- Pinouts guide
- Ohm's law calculator
- AWG converter
- Unit converter
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Digital toolbox for electronics engineers and electricians. Calculators and references for beginners and professionals — for work, study, DIY, and repair. Used by over 100,000 users. Completely ad-free. Included tools: • Datasheet search • Equivalent parts search (cross reference for transistors, diodes and ICs) • Resistor color and digit marking (4, 5 and 6 band color code; 2 symbols, 3/4 digit and EIA-96 code SMD resistors code) • Electronic schematic symbols (IEC 60617, IEEE 315 and GOST standards) • Pinouts of connectors and interfaces (USB, HDMI, DisplayPort, DVI, VGA, Thunderbolt, Apple Lightning and 30-pin, SATA, PCI Express and M.2, Ethernet RJ45 with PoE, RJ11/RJ14/RJ25, RS-232/422/485, IEEE 1394 FireWire, ATX, computer fans, SD card, audio jack, RCA, MIDI, XLR, PS/2, D-sub, SMEMA) • Pinouts of boards and microcontrollers (Raspberry Pi and Pico, Arduino, ESP32, ESP8266, STM32 Nucleo, Teensy, Orange Pi, RADXA Rock Pi, LubanCat, Flipper Zero, ATmega and ATtiny) • Ohm's law calculator • AWG converter (wire diameter, cross-section area, resistance and maximum current) • Resistor for LED • Voltage divider • Wheatstone bridge (output voltage or unknown resistance, current and power of every arm) • Capacitor code • Capacitor markings • Capacitor ESR tables • Frequency response curve calculation of passive filters (RC, RL, RLC, LC) • Inductor color code • Air-core coil calculator (inductance or number of turns of a single-layer solenoid) • Ideal transformer (winding turns, voltages and currents) • Linear current regulator • SMD packages list • Reactance • PCB trace resistance • Active, apparent and reactive power • RMS converter (peak, RMS and peak-to-peak values for seven waveform shapes) • 555 waveform generator • Operational amplifiers • RLC circuit • Number conversion • Unit converter • Cable voltage drop • Battery life (runtime of a battery pack, with discharge curve) • NTC thermistor resistance • Logic gates • RC circuit • Decibels calculator • 25-pair cable color code • Fuse color marking Additionally, by purchasing the PRO version of the app, you will get access to additional tools: • SMD components marking codes • Diodes color code (Pro Electron, JEDEC and JIS-C-7012 standards) • Linear voltage regulator • Resistor value to color or SMD code marking converter • Voltage rectifier • Series or parallel electrical components' connection calculator • Diode voltage drop • Minimum PCB trace width • Analog to digital conversion • Attenuators • 4-20 mA signal converter • Thermocouple calculator • Resistance thermometer • Buck switching voltage regulator • Wire resistance • Zener diode regulator (Zener diode and series resistor selection from a catalogue of 438 parts) • Load cell (bridge output voltage to weight, force, pressure or torque) • BJT voltage divider biasing • Transformer turns per volt (from core area, flux density and frequency) • Junction temperature (with or without a heatsink, power derating curve) • Solar string dimensioning (minimum voltage and current ratings for a PV array) • Solar cable and fuse selection (NEC and IEC rules) • 555 astable generator with variable duty cycle • NTC thermistor in a voltage divider and with an ADC input Privacy Policy: https://www.eehelper.app/ios/privacy/ Terms of Use: https://www.eehelper.app/ios/terms/
Magtrol
Calculate motor power, torque, power factor, and temperature rise. Includes unit converters for various measurements and easy access to company news, products, and contact information. Save and email calculation history.
- Motor Power Calculation
- Torque Calculation
- Power Factor Calculation
- Temperature Rise Calculation
- Unit Converters
- Calculation History
- Contact Magtrol
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Welcome to the Magtrol Mobile App. Use the App to quickly and easily calculate Motor Power, Torque, Power Factor, and Temperature Rise by Resistance. The App also includes converter tools for Torque, Length, Temperature, Mass, Force, and Power Units. App Features: Title Menu News – view the latest news from magtrol.com Tool Belt: Quickly add/remove calculations to history and email results – also saves history data. Contact Bar: Easily connect with Magtrol via Email or Phone with one tap. Products & Manuals: View Magtrol’s Products and Manuals by search. Supported Languages: English, French and German. Updates are in development to support other languages and additional Calculators/Converters. Please email any feedback or suggestions to mobile@magtrol.com
Screenshots
Verdict
The clearest difference is in-app purchases: Magtrol at none against Electronics Engineer Helper's 2. Magtrol also leads on iOS requirement (10.0 vs 17.0). Electronics Engineer Helper's advantage is ratings volume (441 vs 9). On price, rating, update cadence and ads 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. Electronics Engineer Helper sells 2 in-app purchases, starting at $4.89 per year. Magtrol asks for nothing beyond the download.
Magtrol holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: Electronics Engineer Helper has 441 ratings behind it against 9, so its average is the more settled of the two.
Electronics Engineer Helper ships an update monthly, Magtrol every 3 weeks. The most recent releases landed on October 26, 2026 and October 22, 2026 respectively.
| Parameter | Electronics Engineer Helper | Magtrol |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (441 ratings) | 5.0 (9 ratings) — better |
| Positive reviews | 97.7% of reviews | — |
| Number of ratings | 441 — better | 9 |
| Update frequency | Monthly | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPad, Mac | iPhone, iPad, iPod |
| Requires iOS | 17.0 | 10.0 — better |
| Further details — not scored | ||
| Size | 93 MB | 26 MB |
| Age rating | 12+ | 4+ |
| Developer | Rostyslav Dovhaliuk | Magtrol Inc. |
Customer experience
Electronics Engineer Helper
Magtrol
Bugs and requests
Electronics Engineer Helper
Reported bugs
2 issues- Incorrect resistor color code display for some values
- In-app purchase option not working for some users
Requested features
5 requests- Add more circuit schematics and examples
- Include ASCII code to decimal, hex, and octal conversion
- Expand the pinout section with more details
- Add active filter (RC, RL, RLC, LC) calculators
- Include digital to analog converter, transistor, and transformer calculators
Magtrol
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Electronics Engineer Helper
- 1 Year Subscription1 Month trial$4.891 Year
- Lifetime PRO Version$12.49
Magtrol
No in-app purchases
Questions
Is Electronics Engineer Helper free?
Is Magtrol free?
Which has better reviews, Electronics Engineer Helper or Magtrol?
Do Electronics Engineer Helper or Magtrol have ads?
Which is updated more often, Electronics Engineer Helper or Magtrol?
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