# Resistor Calculator Lite vs SJ Resistor Calculator

The clearest difference is in-app purchases: Resistor Calculator Lite at none against SJ Resistor Calculator's 5. Resistor Calculator Lite also leads on ads (none vs shown) and iOS requirement (11.0 vs 16.0). SJ Resistor Calculator's advantage is update cadence (every 2 weeks vs every 6 weeks). On price and device support there is nothing between them.

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

Resistor Calculator Lite ships an update every 6 weeks, SJ Resistor Calculator every 2 weeks. The most recent releases landed on October 29, 2026 and November 4, 2026 respectively.

## The numbers

| Metric | Resistor Calculator Lite | SJ Resistor Calculator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/sj-resistor-calculator/id6504838457/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 6 weeks | **Every 2 weeks** |
| Monetization | — | Free with in-app purchases |
| Size | 8 MB | 4 MB |
| Requires iOS | **11.0** | 16.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Marck Apps](https://appshunter.io/developer/561157787) | [Stephane JAILLIARD](https://appshunter.io/developer/1749751077) |

## What reviewers say

### Resistor Calculator Lite

[App page](https://appshunter.io/ios/app/resistor-calculator-lite/id567034416)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### SJ Resistor Calculator

[App page](https://appshunter.io/ios/app/sj-resistor-calculator/id6504838457)

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:** macOS Compatibility, Vision Pro support

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| A coffee | $0.99 | one-time |
| A cookie | $2.99 | one-time |
| No ads | $4.99 | one-time |
| A lemon tart | $4.99 | one-time |
| A pizza | $9.99 | one-time |


## Frequently asked questions

### Is Resistor Calculator Lite free?

Resistor Calculator Lite 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 Calculator Lite or SJ Resistor Calculator have ads?

SJ Resistor Calculator shows ads; Resistor Calculator Lite does not.

### Which is updated more often, Resistor Calculator Lite or SJ Resistor Calculator?

Resistor Calculator Lite ships an update every 6 weeks, and SJ Resistor Calculator every 2 weeks. Most recently, Resistor Calculator Lite was updated on October 29, 2026 and SJ Resistor Calculator on November 4, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*