Led Car vs SJ Resistor Calculator
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Led Car
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Led Car computes the series resistor you need when replacing a car LED with one of a different wattage, based on your supply voltage. Just enter your voltage, the original LED power and the new LED power: Led Car gives you the resistor value (Ohm) and the recommended wattage. If no resistor is needed, it tells you so. - Fast, offline, no account required - Clean native SwiftUI interface - Full VoiceOver and Dynamic Type support - Light and dark mode - Optional tip jar to support development (unlocks nothing)
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.
- Resistor color code decoding (4, 5, 6 band)
- Series resistor calculations
- Parallel resistor calculations
- Accurate resistance and tolerance values
- User-friendly interface
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############################# # 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
Verdict
The clearest difference is ads: Led Car at none against SJ Resistor Calculator's shown. SJ Resistor Calculator's advantage is update cadence (every 2 weeks vs every 54 months) and iOS requirement (16.0 vs 18.0). On price, 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
Both are free to download. Led Car sells 4 one-off in-app purchases and SJ Resistor Calculator sells 5 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.
Led Car ships an update every 54 months, SJ Resistor Calculator every 2 weeks. The most recent releases landed on November 3, 2026 and November 4, 2026 respectively.
| Parameter | Led Car | SJ Resistor Calculator |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (1 ratings) — better |
| Number of ratings | — | 1 — better |
| Update frequency | Every 54 months | Every 2 weeks — better |
| Ads | No — better | Yes |
| In-app purchases | Yes | Yes |
| Monetization | — | Free with in-app purchases |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 18.0 | 16.0 — better |
| Further details — not scored | ||
| Size | 3 MB | 4 MB |
| Age rating | 4+ | 4+ |
| Developer | Salvatore Boemia | Stephane JAILLIARD |
In-app purchases
Led Car
- Espresso$0.99
- Cappuccino$2.99
- Breakfast$3.99
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- Lunch$8.99
SJ Resistor Calculator
- A coffee$0.99
- A cookie$2.99
- No ads$4.99
Show 2 moreShow fewer
- A lemon tart$4.99
- A pizza$9.99
Questions
Is Led Car free?
Is SJ Resistor Calculator free?
Do Led Car or SJ Resistor Calculator have ads?
Which is updated more often, Led Car or SJ Resistor Calculator?
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