Comparison

SJ Resistor Calculator vs ShareByLight File Transfer

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

Head to head
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!

About

ShareByLight File Transfer

Features
Read full description

ShareByLight moves files from one device to another using only the screen and camera. What it’s for • Pass a file when you don’t want (or can’t use) Wi-Fi or Bluetooth, between air gapped devices • Share between iPhone, iPad, and Mac without a network • Keep the transfer offline and local to the devices in front of you How it works 1. On one device, choose a file and start the stream 2. On the other device, open Receive and point the camera at the screen 3. When the transfer finishes, save the file Features • Send and receive on the same app • Works across iPhone, iPad, and Mac • Optional password protection for the file • Clear progress while the transfer runs • Free: one direction and small files • Pro: both directions and larger files Tips for a smooth transfer • Max brightness on the sending screen • Hold steady and fill the frame • Reduce glare and strong backlight No account required. No cloud. Data moves as light between the devices you choose.

Screenshots

SJ Resistor Calculator4 screens
ShareByLight File Transfer3 screens

Verdict

The call

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.

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 and ShareByLight File Transfer sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

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

Scorecard1 real difference · 8 level
SJ Resistor Calculator versus ShareByLight File Transfer: the parameters behind the verdict, then further details
ParameterSJ Resistor CalculatorShareByLight File Transfer
PriceFreeFree
Rating5.0 (1 ratings) — better—
Number of ratings1 — better—
Update frequencyEvery 2 weeksEvery 2 weeks
AdsYesNo — better
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPadiPhone, iPad
Requires iOS16.0 — better17.0
Further details — not scored
Size4 MB5 MB
Age rating4+4+
DeveloperStephane JAILLIARDDragos Roua

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
1 purchases

ShareByLight File Transfer

One-time1
  • ShareByLight Pro$5.99

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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