Resistor Tools vs Resistor color barcode
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Resistor Tools
This utility app provides a suite of tools for calculating and determining resistor values. It assists hobbyists and engineers with series, parallel, and voltage divider calculations, as well as inverting amplifier gain.
- Series and parallel resistor calculation
- Resistor combination finder
- Voltage divider ratio and value calculation
- Inverting amplifier gain calculation
- Save combinations to CSV
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This app is a collection of resistor calculators. It is suitable for hobbyist or electronic engineer. * Calculate resistance of two resistors in series or parallel * Find out combinations of two resistors in series/parallel making a desired resistance * Calculate ratio of R1/R2 and voltage divider * Find out resistor values of making voltage divider ratio * Find out resistor values of making inverting amplifier gain * Save combination values in CSV file
Resistor color barcode
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Simple resistor barcode calculator. It helps to determine the value of 4, 5 or 6 bar components. Simple, intuitive operation comes down to choosing the right colors. Moving the screen allows you to change the operating mode.
Screenshots
Verdict
The clearest difference is in-app purchases: Resistor color barcode at none against Resistor Tools's 1. Resistor color barcode also leads on update cadence (every 2 days vs every 2 months). On price, ads, device support and iOS requirement 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. Resistor Tools sells 1 one-off in-app purchase. Resistor color barcode asks for nothing beyond the download.
Resistor Tools ships an update every 2 months, Resistor color barcode every 2 days. The most recent releases landed on September 24, 2026 and September 14, 2026 respectively.
| Parameter | Resistor Tools | Resistor color barcode |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (10 ratings) — better | — |
| Positive reviews | 75.0% of reviews | — |
| Number of ratings | 10 — better | — |
| Update frequency | Every 2 months | Every 2 days — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 12.0 | 11.0 — better |
| Further details — not scored | ||
| Size | 4 MB | 44 MB |
| Age rating | 4+ | 4+ |
| Developer | Siu Yuen Ho | Arkadiusz Fryszkowski |
In-app purchases
Resistor Tools
- Unlock pro feature$0.99
Resistor color barcode
No in-app purchases
Questions
Is Resistor Tools free?
Is Resistor color barcode free?
Do Resistor Tools or Resistor color barcode have ads?
Which is updated more often, Resistor Tools or Resistor color barcode?
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