Comparison

Electrodoc Pro vs Resistor

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

Head to head
About

Electrodoc Pro

This app is a comprehensive toolkit for electronics enthusiasts and professionals. It offers a wide range of calculators, reference tables, and pin-out diagrams for various electronic components and connectors. Simplify complex calculations and access essential information quickly.

Highlights
  • Resistor color code lookup
  • Ohm's Law calculator
  • LED resistor calculator
  • NE555 timer calculator
  • Extensive port pin-out diagrams
  • Electronics reference tables
Features
Read full description

Electrodoc Pro is a simple and powerful collection of electronics tools and references. Electrodoc is the new app name of Electrodroid. Same app, with the same and even more features. The app includes: • Resistor Color Code; • Lookup Resistor color by value; • SMD Resistor Code; • Inductor Color Code; • Ohm's Law; • Reactance/Resonance; • Filters; • Voltage divider; • Resistor Ratio; • Resistor series/parallel; • Capacitor charge; • Operational Amplifier; • LED Resistor Calculator; • Adjustable voltage regulator; • NE555 Calculator; • Power dissipation; • Battery Life calculator; • Inductor Design Tool; • Voltage Drop Calculator; • PCB Trace Width Calculator; • Power Calculator; • Y-Δ Transformation; • Decibel Converter; • Frequency Converter; • Analog-Digital Converter; • RMS Converter; • Range Converter; • Port pin-out (USB port, Serial port, Parallel port, Ethernet port, Power Over Ethernet, Registered Jack, SCART connector, DVI connector, HDMI connector, Display Port, VGA connector, S-Video connector, VESA Connector, Jack connector, FireWire connector, RCA connector, Audio DIN connector, XLR and DMX, ATX Power connectors, PC peripheral connectors, EIDE/ATA - SATA, PS/2-AT connectors, 25-pair cable color code, Fiber Optic cable color, MIDI connector, MIDI/Game port, Apple 30-pin connector, Apple Lightning connector, PDMI, OBD-II Car connector, Car audio ISO connector, Trailer connectors, SD card pin-out, SIM/Smart card, Raspberry Pi pin-out, LCD pin-out, GPIB/IEEE-488 pin-out, Thermocouples colors, Arduino boards, JTAG pinouts, BeagleBone boards); • Resources (PIC ICSP / AVR ISP, ChipDB (IC pinouts), USB specifications, Resistivity Table, AWG-SWG Wire Size, Ampacity Table, Standard Resistors, Standard Capacitors, Capacitor marking codes, Circuit Schematic symbols, SMD Package Sizes, Symbols and Acronyms, SI Units prefixes, ASCII Table, Boolean Logic gates, 7400 series IC, Switch Information, 78xx IC, Batteries, Coin Batteries, Decibel Table, Radio frequencies, PT100 Conversion Table, Fuses color code, Automotive Fuses colors, DIN 47100 color coding, IP marking, World Plugs & Sockets, IEC Connectors, NEMA connectors); • Full support for EIA resistor series for all calculators; ...and more to come! If you like the program, please rate it on the app store For FAQ and full change-log, visit http://electrodoc.it

About

Resistor

This application simplifies electronic circuit calculations with tools for series/parallel resistance, LED current limiting, and three-phase circuit conversions. It also features a resistor color code decoder for quick component identification.

Highlights
  • Series/parallel resistor calculator
  • LED series resistor calculator
  • Star-delta and delta-star converters
  • Resistor color code decoder
  • Intuitive interface
Features
Read full description

Resistor Calc is an essential tool for anyone working with electronic circuits and resistors. Designed to streamline complex calculations and provide invaluable insights, this powerful app for iOS devices is a must-have in your toolkit. At the heart of Resistor Calc lies a comprehensive suite of calculators tailored to the needs of electrical engineers, students, hobbyists, and professionals. The series/parallel calculator makes it a breeze to determine the equivalent resistance for even the most intricate circuit configurations, eliminating the need for tedious manual calculations prone to errors. The LED series resistor calculator is a game-changer for those working with LED lighting systems. Simply input the required parameters, and Resistor Calc will recommend the ideal resistor value to ensure proper current limiting and protect your LEDs from potential damage, ensuring optimal performance and longevity. For three-phase circuits, the app's star-delta and delta-star converters streamline the process of switching between different wiring configurations. Whether you need to convert from star to delta or vice versa, Resistor Calc has you covered, saving you valuable time and effort. But the true standout feature of Resistor Calc is its powerful resistor color code decoder. Never again will you need to decipher those tiny colored bands manually. Simply input the color codes, and the app will instantly reveal the resistor's value, tolerance, and other essential information, making component identification a breeze and saving you countless hours of frustration. With its sleek and intuitive interface, Resistor Calc is designed for seamless navigation and ease of use. Whether you're a student grappling with complex circuit problems or a seasoned professional tackling intricate projects, this app empowers you with accurate and reliable calculations at your fingertips. Download Resistor Calc today and experience the power of efficient circuit analysis and resistor management on your iOS device. Streamline your workflow, minimize errors, and unlock new levels of productivity in your electrical engineering endeavours.

Screenshots

Electrodoc Pro4 screens
Resistor4 screens

Verdict

The call

The clearest difference is price: Resistor at Free against Electrodoc Pro's $4.99. Electrodoc Pro's advantage is rating (4.6 vs 3.0) and ads (none vs shown). On in-app purchases 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

CostPrice · In-app purchases · Ads · Monetization

Resistor is free to download; Electrodoc Pro costs $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Electrodoc Pro holds the better App Store score, 4.6 against 3.0. That said, the two scores are not equally well evidenced: Electrodoc Pro has 62 ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 75% of Electrodoc Pro's written reviews are positive against 50% of Resistor's.

UpkeepUpdate frequency

Electrodoc Pro ships an update every 3 months, Resistor every 16 months. The most recent releases landed on October 16, 2026 and September 27, 2026 respectively.

Scorecard9 real differences · 2 level
Electrodoc Pro versus Resistor: the parameters behind the verdict, then further details
ParameterElectrodoc ProResistor
Price$4.99Free — better
Rating4.6 (62 ratings) — better3.0 (3 ratings)
Positive reviews75.4% of reviews — better50.0% of reviews
Number of ratings62 — better3
Update frequencyEvery 3 months — betterEvery 16 months
AdsNo — betterYes
In-app purchasesNoNo
MonetizationFree — betterAd-supported
Best chart rank#134 — better—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS11.0 — better13.0
Further details — not scored
Size25 MB22 MB
Age rating4+4+
DeveloperIODEMA SrlAnas Abubakar

Customer experience

Electrodoc Pro

All ratings62 ratings
Positive90.3%
Neutral3.2%
Negative6.5%
Written reviews114 reviews
Positive75.4%
Neutral10.5%
Negative14.0%

Resistor

All ratings3 ratings
Positive33.3%
Neutral33.3%
Negative33.3%
Written reviews2 reviews
Positive50.0%
Neutral0.0%
Negative50.0%

In-app purchases

None

Electrodoc Pro

No in-app purchases

None

Resistor

No in-app purchases

Questions

Is Electrodoc Pro free?
Electrodoc Pro costs $4.99, with no in-app purchases.
Is Resistor free?
Resistor is free to download, with no in-app purchases.
Which has better reviews, Electrodoc Pro or Resistor?
Electrodoc Pro is rated higher. Electrodoc Pro averages 4.6 out of 5 from 62 ratings, while Resistor averages 3.0 from 3 ratings.
Do Electrodoc Pro or Resistor have ads?
Resistor shows ads; Electrodoc Pro does not.
Which is updated more often, Electrodoc Pro or Resistor?
Electrodoc Pro ships an update every 3 months, and Resistor every 16 months. Most recently, Electrodoc Pro was updated on October 16, 2026 and Resistor on September 27, 2026.

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