# SJ Resistor Calculator vs ShareByLight File Transfer

The clearest difference is ads: ShareByLight File Transfer at none against SJ Resistor Calculator's shown. On price, update cadence, in-app purchases and device support there is nothing between them.

Both are free to download. SJ Resistor Calculator sells 5 one-off in-app purchases and ShareByLight File Transfer sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Both ship on a similar rhythm, roughly every 2 weeks. The most recent releases landed on October 24, 2026 and October 29, 2026 respectively.

## The numbers

| Metric | SJ Resistor Calculator | ShareByLight File Transfer |
| --- | --- | --- |
| 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 | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 2 weeks | Every 2 weeks |
| Monetization | Free with in-app purchases | — |
| Size | 4 MB | 5 MB |
| Requires iOS | **16.0** | 17.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Stephane JAILLIARD](https://appshunter.io/developer/1749751077) | [Dragos Roua](https://appshunter.io/developer/1471975280) |

## What reviewers say

### 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 |


### ShareByLight File Transfer

[App page](https://appshunter.io/ios/app/sharebylight-file-transfer/id6796897056)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ShareByLight Pro | $5.99 | one-time |


## Frequently asked questions

### Is SJ Resistor Calculator free?

SJ Resistor Calculator is free to download, with in-app purchases available.

### Is ShareByLight File Transfer free?

ShareByLight File Transfer is free to download, with in-app purchases available.

### Do SJ Resistor Calculator or ShareByLight File Transfer have ads?

SJ Resistor Calculator shows ads; ShareByLight File Transfer does not.

### Which is updated more often, SJ Resistor Calculator or ShareByLight File Transfer?

SJ Resistor Calculator ships an update every 2 weeks, and ShareByLight File Transfer every 2 weeks. Most recently, SJ Resistor Calculator was updated on October 24, 2026 and ShareByLight File Transfer on October 29, 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.*