Comparison

SMD decoder 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

SMD decoder

Decode SMD resistors with this practical tool. It supports three-digit, four-digit, and EIA-96 encoded resistor values, providing quick and accurate identification.

Highlights
  • Decodes 3-digit SMD codes
  • Decodes 4-digit SMD codes
  • Decodes EIA-96 SMD codes
  • Resistor value identification
Features
Read full description

A practical application that will decode any SMD resistor, regardless of whether the code is three or four digits, as well as those encoded in the EIA - 96 system.

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

SMD decoder3 screens
SJ Resistor Calculator4 screens

Verdict

The call

The clearest difference is in-app purchases: SMD decoder at none against SJ Resistor Calculator's 5. SMD decoder also leads on ads (none vs shown) and update cadence (every 2 days vs every 2 weeks). On price, rating, ratings volume 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. SMD decoder asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for SMD decoder against 5.0 for SJ Resistor Calculator. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

UpkeepUpdate frequency

SMD decoder ships an update every 2 days, SJ Resistor Calculator every 2 weeks. The most recent releases landed on June 1, 2026 and July 18, 2026 respectively.

Scorecard5 real differences · 4 level
SMD decoder versus SJ Resistor Calculator: the parameters behind the verdict, then further details
ParameterSMD decoderSJ Resistor Calculator
PriceFreeFree
Rating5.0 (1 ratings)5.0 (1 ratings)
Number of ratings11
Update frequencyEvery 2 days — betterEvery 2 weeks
AdsNo — betterYes
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS11.0 — better16.0
Further details — not scored
Size43 MB4 MB
Age rating4+4+
DeveloperArkadiusz FryszkowskiStephane JAILLIARD

Customer experience

SMD decoder

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

SJ Resistor Calculator

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

SMD decoder

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 SMD decoder free?
SMD decoder 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.
Which has better reviews, SMD decoder or SJ Resistor Calculator?
SMD decoder and SJ Resistor Calculator are both rated 5.0 out of 5 on the App Store, from 1 and 1 ratings respectively.
Do SMD decoder or SJ Resistor Calculator have ads?
SJ Resistor Calculator shows ads; SMD decoder does not.
Which is updated more often, SMD decoder or SJ Resistor Calculator?
SMD decoder ships an update every 2 days, and SJ Resistor Calculator every 2 weeks. Most recently, SMD decoder was updated on June 1, 2026 and SJ Resistor Calculator on July 18, 2026.

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