EE ToolKit PRO vs Electronics Engineer Helper
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
EE ToolKit PRO
This comprehensive toolkit offers over 160 electronic applications, calculators, and reference sections for electronics engineers, students, and hobbyists. It includes features like a multi-functional keyboard, color code tools, audio scope, and circuit simulations, with ongoing improvements and updates.
- Over 160 electronic applications
- Multi-functional keyboard
- Color code and SMD code tools
- Audio scope and frequency generator
- Component reference section with datasheets
- 555 Timer tools
- PCB trace impedance calculators
- Real-time circuit simulations
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This is the brand-new Electronics Engineering ToolKit PRO! The HIGHLY RATED and RECOMMENDED productivity app. Users say it is the BEST and MOST PRACTICAL Electronics App in the whole iTunes App Store. From an electronics enthusiast with a master's degree in Electronics Engineering. This App is for engineers, students and hobbyists and anyone interested in Electronics Engineering. The App gets CONSTANT and POWERFUL improvements! !!! This is a UNIVERSAL App - for iPhone and iPad !!! 100% PRO from the beginning without any In-App purchase! The EE ToolKit PRO is the preferred Electronics App at schools and universities. It is available through the Volume Purchase Program with a discount for educational institutions. Many students, teachers and professors have downloaded the App and are using it during their studies and career. WHAT OTHER USERS ARE SAYING: “Awesome app, constant and powerful improvements” This app was worth every penny I paid for it back when I bought it years ago. Since then, I’ve regularly used it at work and found it to be an excellent, quick tool to use. The most impressive aspect of this app are the constant and VERY impressive updates! Massive feature additions and very easy to use interface! The list of capabilities this app has makes it an amazing value for truly anyone involved in electronics. “Latest version makes this an exceptional tool” The EE Toolkit was always a very useful tool, but with the additions in the latest version it is truly an exceptional tool. The author is extremely diligent in managing bugs and improving the tool. “A superb app highly recommended” Fantastic application. Very useful. Always updated. Good developer. Lots of great bonus tools. Just love it. "Incredible useful, worth the money" I have had this app for a while now. Originally as an Electrical Engineering student I didnt really use it but once I was out in the field it became my bible. I definitely recommend to any engineering students/professionals alike. I also recommend buying the Pro version because it is definitely worth it. FEATURES OF THE EE TOOLKIT: Ω more than 160 electronic applications Ω amazingly great multi-functional keyboard Ω huge selection of color code tools and SMD code tools Ω audio scope and a frequency pitch detector Ω favorites page only for the tools that you have marked as favorite Ω full-featured frequency generator Ω extra large component reference section (incl. 7400 Series, PIC family, etc.) with the option to open pdf datasheets live or by e.g. iBooks Ω 555 Timer Tools with the most important application examples Ω extensive collection of Single Board Computers (more than 120 different boards!!!) Ω PCB trace impedance tools for several different structures Ω simple and quick unit conversion within the single calculators Ω fast on-the-fly conversions and calculations Ω real-time circuit simulations of the example circuits Ω support for preferred E series, sliders and min/max calculations Ω auto-save of all entries over several sessions Ω file manager to save and load individual calculations Ω built-in access to your iCloud Ω formula search tool with quick links to the tool which uses the formula Ω and many many more
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/
Screenshots
Verdict
The clearest difference is price: Electronics Engineer Helper at Free against EE ToolKit PRO's $9.99. Electronics Engineer Helper also leads on update cadence (monthly vs every 3 months) and review sentiment (98% vs 90%). EE ToolKit PRO's advantage is in-app purchases (none vs 2) and iOS requirement (12.0 vs 17.0). On rating, ratings volume, 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
Electronics Engineer Helper is free to download; EE ToolKit PRO costs $9.99 up front. Electronics Engineer Helper sells 2 in-app purchases, starting at $4.89 per year. EE ToolKit PRO asks for nothing beyond the download.
On the App Store both sit at effectively the same score — 4.9 for EE ToolKit PRO against 4.8 for Electronics Engineer Helper. Both are backed by a comparable volume of ratings — 293 and 436 respectively. Written reviews are what separate them: 90% of EE ToolKit PRO's written reviews are positive against 98% of Electronics Engineer Helper's.
EE ToolKit PRO ships an update every 3 months, Electronics Engineer Helper monthly. The most recent releases landed on September 21, 2026 and September 18, 2026 respectively.
| Parameter | EE ToolKit PRO | Electronics Engineer Helper |
|---|---|---|
| Price | $9.99 | Free — better |
| Rating | 4.9 (293 ratings) — better | 4.8 (436 ratings) |
| Positive reviews | 89.6% of reviews | 97.7% of reviews — better |
| Number of ratings | 293 | 436 — better |
| Update frequency | Every 3 months | Monthly — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Paid | Free with in-app purchases — better |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Mac |
| Requires iOS | 12.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 289 MB | 91 MB |
| Age rating | 4+ | 12+ |
| Developer | Thomas Gruber | Rostyslav Dovhaliuk |
Customer experience
EE ToolKit PRO
Electronics Engineer Helper
User reviews
EE ToolKit PRO
From 293 App Store ratingsWhat we love
- 🚀 Top-notch tool
- 👍 Extremely helpful
- 🔥 Invaluable for electronics work
- 💯 Excellent app
- 🔍 Comprehensive reference
Room to improve
- 🐛 Occasional crashes or bugs
- 🔍 UI could be more intuitive
- 📱 Some features not optimized for mobile
- 🔢 Limited functionality for advanced users
Electronics Engineer Helper
From 436 App Store ratingsWhat we love
- 🚀 Useful tool
- 👍 Comprehensive reference
- 👍 Intuitive and well-designed
- 👍 Saves time and effort
- 👍 Excellent for beginners and professionals
Room to improve
- 💰 Some advanced features require paid subscription
- 🇷🇺 Some content in Russian language
Bugs and requests
EE ToolKit PRO
Reported bugs
3 issues- 7400 routine causes app to close
- Resistor value calculation issues
- Compatibility problems with newer iOS versions
Requested features
5 requests- Add support for vacuum tubes
- Implement logarithmic frequency sweep
- Include more component pinout information
- Integrate a circuit builder/simulator
- Add DB to RMS and peak-to-peak conversion
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
In-app purchases
EE ToolKit PRO
No in-app purchases
Electronics Engineer Helper
- 1 Year Subscription1 Month trial$4.891 Year
- Lifetime PRO Version$12.49
Questions
Is EE ToolKit PRO free?
Is Electronics Engineer Helper free?
Which has better reviews, EE ToolKit PRO or Electronics Engineer Helper?
Do EE ToolKit PRO or Electronics Engineer Helper have ads?
Which is updated more often, EE ToolKit PRO or Electronics Engineer Helper?
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