Resistor Calculator Lite vs Resistor Tools
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Resistor Calculator Lite
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Resistor Lite is a calculator for your electric resistors, for those moments when you have lots of resistors and you need to check the value and tolerance of them by their color, well now you don't need to check the value of every color and do the necessary math to know its value, you just need to use your Resistor app. Select the colors your resistor has, and it will instantly give you it's value and tolerance. Support the developer by getting the Resistor Calculator Pro app, with more features and better updates!
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
Screenshots
Verdict
The clearest difference is in-app purchases: Resistor Calculator Lite at none against Resistor Tools's 1. On price, update cadence, ads 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
Both are free to download. Resistor Tools sells 1 one-off in-app purchase. Resistor Calculator Lite asks for nothing beyond the download.
Resistor Calculator Lite ships an update every 6 weeks, Resistor Tools every 2 months. The most recent releases landed on October 7, 2026 and October 10, 2026 respectively.
| Parameter | Resistor Calculator Lite | Resistor Tools |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (10 ratings) — better |
| Positive reviews | — | 75.0% of reviews |
| Number of ratings | — | 10 — better |
| Update frequency | Every 6 weeks — better | Every 2 months |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | — | Free with in-app purchases |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 11.0 — better | 12.0 |
| Further details — not scored | ||
| Size | 8 MB | 4 MB |
| Age rating | 4+ | 4+ |
| Developer | Marck Apps | Siu Yuen Ho |
In-app purchases
Resistor Calculator Lite
No in-app purchases
Resistor Tools
- Unlock pro feature$0.99
Questions
Is Resistor Calculator Lite free?
Is Resistor Tools free?
Do Resistor Calculator Lite or Resistor Tools have ads?
Which is updated more often, Resistor Calculator Lite or Resistor Tools?
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