Comparison

Resistor Color Code Calc. vs Air2Transfer

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

Head to head
About

Resistor Color Code Calc.

Instantly decode resistor color bands, calculate exact values, and convert SMD resistor markings. This app provides essential tools for electronics students, technicians, and hobbyists with a clean interface and fast processing.

Highlights
  • Decode 3- to 6-band resistors
  • Calculate resistance values
  • Convert SMD resistor codes
  • Series and parallel resistor calculators
  • Save and share results
  • Clean and simple interface
Features
Read full description

Resistor Color Code Calculator is a complete toolkit for electronics students, technicians, hobbyists, and engineers. This app helps you instantly decode resistor color bands, calculate exact values, and explore essential resistor conversion tools with accuracy and speed. Whether you are learning electronics or working on real hardware projects, this app delivers clear results, fast processing, and an easy-to-use interface. Included Tools:- 1) Color to Value Select resistor color bands and instantly get resistance values with tolerance. 2) Value to Color Enter a resistor value and generate the correct color bands automatically. 3) SMD Resistor Code Decode SMD resistor markings (3-digit, 4-digit, EIA-96) with quick results. 4) Series Resistor Calculator Add multiple resistors in series and get the total resistance instantly. 5) Parallel Resistor Calculator Calculate parallel combinations with accurate results, even for multiple resistors. Key Features Supports 3-band, 4-band, 5-band, and 6-band resistors, Clean and simple interface for quick calculations, Accurate resistor decoding for electronics work, Save and share calculation results, Perfect for circuits, DIY projects, education, and lab work, This is your all-in-one resistor reference and calculation tool — fast, reliable, and ideal for anyone working with electronics. in-app purchase included Lifetime to full acsess Privacy Policy : https://semiconhub.in/manager/privacy.html Terms and Condition : https://semiconhub.in/manager/tcondition.html

About

Air2Transfer

Features
Read full description

Air2Transfer is a local-first file transfer tool for iPhone. Start a session on your iPhone, open the local web page from another device on the same network, and move photos, videos, documents, and other files without creating an account. Key features: - QR code and one-time PIN pairing - Local browser downloads from iPhone - Browser uploads back to iPhone - Files and Photos integration - Simple nearby transfer workflow for phones, tablets, and computers Air2Transfer is designed for quick nearby sharing when you want direct device-to-device transfer through a browser.

Screenshots

Resistor Color Code Calc.4 screens
Air2Transfer4 screens

Verdict

The call

The clearest difference is price: Resistor Color Code Calc. at Free against Air2Transfer's $4.99. Resistor Color Code Calc. also leads on device support (3 vs 1) and iOS requirement (15.6 vs 26.2). Air2Transfer's advantage is in-app purchases (none vs 1) and update cadence (every 3 weeks vs every 5 months). On ads 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

Resistor Color Code Calc. is free to download; Air2Transfer costs $4.99 up front. Resistor Color Code Calc. sells 1 one-off in-app purchase. Air2Transfer asks for nothing beyond the download.

UpkeepUpdate frequency

Resistor Color Code Calc. ships an update every 5 months, Air2Transfer every 3 weeks. The most recent releases landed on October 12, 2026 and September 28, 2026 respectively.

Scorecard5 real differences · 4 level
Resistor Color Code Calc. versus Air2Transfer: the parameters behind the verdict, then further details
ParameterResistor Color Code Calc.Air2Transfer
PriceFree — better$4.99
Rating5.0 (1 ratings) — better—
Number of ratings1 — better—
Update frequencyEvery 5 monthsEvery 3 weeks — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS15.6 — better26.2
Further details — not scored
Size35 MB3 MB
Age rating+44+
DeveloperSachinbhai SuraniIENG PHO

In-app purchases

1 purchases

Resistor Color Code Calc.

One-time1
  • Lifetime premium$12.99
None

Air2Transfer

No in-app purchases

Questions

Is Resistor Color Code Calc. free?
Resistor Color Code Calc. is free to download, with in-app purchases available.
Is Air2Transfer free?
Air2Transfer costs $4.99, with no in-app purchases.
Do Resistor Color Code Calc. or Air2Transfer have ads?
Neither Resistor Color Code Calc. nor Air2Transfer shows ads.
Which is updated more often, Resistor Color Code Calc. or Air2Transfer?
Resistor Color Code Calc. ships an update every 5 months, and Air2Transfer every 3 weeks. Most recently, Resistor Color Code Calc. was updated on October 12, 2026 and Air2Transfer on September 28, 2026.

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