Comparison

Electronics Engineer Helper vs Lighting Calculations

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

Head to head
About

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.

Highlights
  • Datasheet search
  • Resistor color code calculator
  • Electronic schematic symbols
  • Pinouts guide
  • Ohm's law calculator
  • AWG converter
  • Unit converter
Features
Read full description

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/

About

Lighting Calculations

This app transforms your smartphone into a comprehensive lighting design tool. It offers advanced calculations for room lighting, LED analysis, and efficiency, alongside quick conversions and essential technical resources. Ensure your lighting projects meet all standards and optimize energy usage.

Highlights
  • Room lighting design calculations
  • LED analysis (lifespan, photobiological risk)
  • Energy efficiency calculations
  • Photometric code decoding
  • Lumen, Lux, Candela, Watt conversions
  • Normative requirements and technical guides
  • Light quality metrics (CRI, UGR)
Features
Read full description

PROJEKTUJESZ SYSTEMY OŚWIETLENIOWE, JESTEŚ INSTALATOREM LUB PASJONATEM MAJSTERKOWANIA? "Obliczenia Oświetleniowe" to ostateczne narzędzie, które zmieni Twój smartfon w najlepszego sojusznika w projektach świetlnych. Zapomnij o złożonych obliczeniach ręcznych i ryzyku błędów projektowych. Dzięki naszej aplikacji masz pod ręką kompletny ekosystem kalkulatorów, konwerterów i tabel, zaprojektowany tak, aby oszczędzić Twój cenny czas na budowie lub w biurze. Technika świetlna nie będzie miała przed Tobą tajemnic! CO MOŻESZ ZROBIĆ Z NASZĄ APLIKACJĄ? ZAAWANSOWANE OBLICZENIA I PROJEKTOWANIE: • Projektowanie pomieszczeń: obliczanie całkowitego strumienia świetlnego, liczby potrzebnych opraw, natężenia oświetlenia i równomierności na powierzchni. • Analiza LED: żywotność diod LED (parametry L, B i C), ryzyko fotobiologiczne i obliczenia zasilaczy do taśm LED. • Efektywność: obliczanie skuteczności świetlnej, oszczędności energii lamp i kompensacja mocy biernej. • Zintegrowane narzędzia: szybkie i precyzyjne dekodowanie kodu fotometrycznego. SZYBKIE I PRECYZYYJNE KONWERSJE: • Lumeny / Luksy / Kandele / Waty (we wszystkich możliwych kombinacjach). • Luksy / Stopokandele (dla standardów międzynarodowych). • Szybkie porównanie mocy między różnymi technologiami oświetleniowymi. • Luminancja i Natężenie oświetlenia / Wartość ekspozycji (EV). • Konwersja temperatury barwowej (Kelvin) na RGB. ZASOBY, TABELE I ZAWSZE AKTUALNE NORMY: • Wymagania normatywne: poziomy natężenia oświetlenia wymagane w pomieszczeniach. • Przewodniki techniczne: typy lamp, trzonki, kształty żarówek i świetlówki. • Jakość światła: diagram Kruithofa, widmo widzialne, temperatura barwowa i wskaźnik oddawania barw (CRI). • Bezpieczeństwo i klasyfikacja: nowa etykieta energetyczna, skala olśnienia (UGR), symbole i jednostki miary. • Focus na LED: typowe cechy i specyfikacje diod LED SMD. EKSKLUZYWNY BONUS: Wewnątrz znajdziesz niezwykle przydatny PEŁNY ZBIÓR WZORÓW ze wszystkimi formułami matematycznymi techniki świetlnej, a także ogólne tabele kompensacji mocy biernej dla lamp 220V. DLA KOGO JEST TA APLIKACJA? Inżynierów, architektów, projektantów oświetlenia, elektryków, studentów i każdego, kto chce uzyskać idealne, skalibrowane i zgodne z normami oświetlenie. RZUĆ ŚWIATŁO NA SWOJE PROJEKTY! Pobierz "Obliczenia Oświetleniowe" już dziś i wznieś swoją pracę na wyższy poziom.

Screenshots

Electronics Engineer Helper4 screens
Lighting Calculations4 screens

Verdict

The call

Electronics Engineer Helper and Lighting Calculations both sit at 4.8 stars, but that hides the real split: 98% of Electronics Engineer Helper's written reviews are positive against 60% of Lighting Calculations's. Electronics Engineer Helper also leads on ads (none vs shown) and ratings volume (436 vs 6). Lighting Calculations's advantage is iOS requirement (15.0 vs 17.0). On price, rating, update cadence and in-app purchases 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. Electronics Engineer Helper sells 2 in-app purchases, starting at $4.89 per year and Lighting Calculations sells 3 in-app purchases, starting at $1.99 per 3 months. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.8 for Electronics Engineer Helper against 4.8 for Lighting Calculations. That said, the two scores are not equally well evidenced: Electronics Engineer Helper has 436 ratings behind it against 6, so its average is the more settled of the two. Written reviews are what separate them: 98% of Electronics Engineer Helper's written reviews are positive against 60% of Lighting Calculations's.

UpkeepUpdate frequency

Electronics Engineer Helper ships an update monthly, Lighting Calculations every 5 weeks. The most recent releases landed on October 11, 2026 and October 3, 2026 respectively.

Scorecard4 real differences · 6 level
Electronics Engineer Helper versus Lighting Calculations: the parameters behind the verdict, then further details
ParameterElectronics Engineer HelperLighting Calculations
PriceFreeFree
Rating4.8 (436 ratings)4.8 (6 ratings)
Positive reviews97.7% of reviews — better60.0% of reviews
Number of ratings436 — better6
Update frequencyMonthly — betterEvery 5 weeks
AdsNo — betterYes
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, MaciPhone, iPad, iPod
Requires iOS17.015.0 — better
Further details — not scored
Size92 MB32 MB
Age rating12+4+
DeveloperRostyslav DovhaliukEgal Net di Ettore Gallina

Customer experience

Electronics Engineer Helper

All ratings436 ratings
Positive97.5%
Neutral1.6%
Negative0.9%
Written reviews172 reviews
Positive97.7%
Neutral0.6%
Negative1.7%

Lighting Calculations

All ratings6 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews5 reviews
Positive60.0%
Neutral20.0%
Negative20.0%

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

Lighting Calculations

Not enough reviews yet to summarise bugs or requests.

In-app purchases

2 purchases

Electronics Engineer Helper

Subscriptions1
  • 1 Year Subscription1 Month trial$4.891 Year
One-time1
  • Lifetime PRO Version$12.49
3 purchases

Lighting Calculations

Subscriptions2
  • PRO Version (3 months)$1.993 Months
  • PRO Version (1 year)7 Days trial$2.991 Year
One-time1
  • PRO Version (Lifetime)$89.99

Questions

Is Electronics Engineer Helper free?
Electronics Engineer Helper is free to download, with in-app purchases available.
Is Lighting Calculations free?
Lighting Calculations is free to download, with in-app purchases available.
Which has better reviews, Electronics Engineer Helper or Lighting Calculations?
Electronics Engineer Helper and Lighting Calculations are both rated 4.8 out of 5 on the App Store, from 436 and 6 ratings respectively.
Do Electronics Engineer Helper or Lighting Calculations have ads?
Lighting Calculations shows ads; Electronics Engineer Helper does not.
Which is updated more often, Electronics Engineer Helper or Lighting Calculations?
Electronics Engineer Helper ships an update monthly, and Lighting Calculations every 5 weeks. Most recently, Electronics Engineer Helper was updated on October 11, 2026 and Lighting Calculations on October 3, 2026.

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