Comparison

Resistor Code Calculators vs SJ Resistor Calculator

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

Head to head
About

Resistor Code Calculators

Features
Read full description

The one handy app for electrical engineering calculation. This app contains not only resistor color code and capacitor code calculators but also electrical filter, attenuator, rectifier, LC oscillator, RF, PCB trace, cable, Ohm's Law, skin effect, Lumen Candela conversion, Delta Y Conversion, and many other handy calculators.

About

SJ Resistor Calculator

This tool simplifies resistor calculations for electronics enthusiasts, students, and professionals. It accurately decodes resistor color codes and performs series/parallel calculations for complex circuit analysis. Avoid manual errors and streamline your electronics projects.

Highlights
  • Resistor color code decoding (4, 5, 6 band)
  • Series resistor calculations
  • Parallel resistor calculations
  • Accurate resistance and tolerance values
  • User-friendly interface
Features
Read full description

############################# # SJ RESISTOR CALCULATOR # ############################# Never misread your electronic components again! SJ Resistor Calculator is the essential tool for professionals, students, and electronics enthusiasts. No more color code errors or tedious calculations for your circuits! +----------------------------------------+ | WHY CHOOSE THIS APP | +----------------------------------------+ [ INTUITIVE DECODING ] - Instantly read 4, 5, or 6-band resistors. - Get the exact value and tolerance effortlessly. [ SERIES CALCULATIONS ] - Calculate the equivalent resistance of your series circuits. - Add as many components as you need. [ PARALLEL CALCULATIONS ] - Easily analyze the behavior of your parallel circuits. - Absolute precision for your electrical designs. [ PROFESSIONAL RELIABILITY ] - A clean, ergonomic, and straightforward interface. - Designed for maintenance, studies, and troubleshooting. Free and available in your language, download it today!

Screenshots

Resistor Code Calculators4 screens
SJ Resistor Calculator4 screens

Verdict

The call

The clearest difference is in-app purchases: Resistor Code Calculators at none against SJ Resistor Calculator's 5. Resistor Code Calculators also leads on iOS requirement (13.4 vs 16.0). SJ Resistor Calculator's advantage is update cadence (every 2 weeks vs every 7 months). On price, 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. SJ Resistor Calculator sells 5 one-off in-app purchases. Resistor Code Calculators asks for nothing beyond the download.

UpkeepUpdate frequency

Resistor Code Calculators ships an update every 7 months, SJ Resistor Calculator every 2 weeks. The most recent releases landed on September 17, 2026 and July 18, 2026 respectively.

Scorecard3 real differences · 6 level
Resistor Code Calculators versus SJ Resistor Calculator: the parameters behind the verdict, then further details
ParameterResistor Code CalculatorsSJ Resistor Calculator
PriceFreeFree
Rating—5.0 (1 ratings) — better
Number of ratings—1 — better
Update frequencyEvery 7 monthsEvery 2 weeks — better
AdsYesYes
In-app purchasesNo — betterYes
Monetization—Free with in-app purchases
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS13.4 — better16.0
Further details — not scored
Size6 MB4 MB
Age rating4+4+
DeveloperKanta KikuboStephane JAILLIARD

In-app purchases

None

Resistor Code Calculators

No in-app purchases

5 purchases

SJ Resistor Calculator

One-time5
  • A coffee$0.99
  • A cookie$2.99
  • No ads$4.99
Show 2 more
  • A lemon tart$4.99
  • A pizza$9.99

Questions

Is Resistor Code Calculators free?
Resistor Code Calculators is free to download, with no in-app purchases.
Is SJ Resistor Calculator free?
SJ Resistor Calculator is free to download, with in-app purchases available.
Do Resistor Code Calculators or SJ Resistor Calculator have ads?
Both Resistor Code Calculators and SJ Resistor Calculator show ads.
Which is updated more often, Resistor Code Calculators or SJ Resistor Calculator?
Resistor Code Calculators ships an update every 7 months, and SJ Resistor Calculator every 2 weeks. Most recently, Resistor Code Calculators was updated on September 17, 2026 and SJ Resistor Calculator on July 18, 2026.

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