Resistor Tools vs Capacitor
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
Capacitor
Easily determine capacitor values from color codes or calculate color codes from values. Supports both standard and SMD capacitors, providing quick and accurate conversions for electronics projects.
- Capacitor color code to value conversion
- Value to capacitor color code conversion
- SMD capacitor code to value conversion
- SMD value to EIA code calculation
- Supports standard and SMD capacitors
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The Capacitor Converter is the perfect tool for anyone working with electronics – from hobbyists and students to professional technicians. Simply select the color bands and instantly see the corresponding capacitor value. Or enter a value and let the app calculate the correct color bands automatically. SMD capacitors are fully supported as well: enter the capacitor code → the value is calculated. Enter the value → the matching EIA code is generated. The app works completely offline, is fast, intuitive, and requires no registration. Perfect for workshops, labs, education, and DIY electronics projects. Key Features: Select color bands → instantly get the capacitor value Enter a value → automatically get the correct color bands Supports SMD capacitor codes: EIA‑3, EIA‑4, and EIA‑96 Fully offline, no registration required Ideal for electronics hobbyists, students, and professionals Clean interface and fast workflow The Capacitor Converter makes working with capacitor values easier, faster, and more reliable.
Screenshots
Verdict
The clearest difference is in-app purchases: Capacitor at none against Resistor Tools's 1. Capacitor also leads on review sentiment (100% vs 75%). Resistor Tools's advantage is update cadence (every 2 months vs every 40 months) and rating (5.0 vs 4.8). On price, ratings volume, 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. Capacitor asks for nothing beyond the download.
Resistor Tools holds the better App Store score, 5.0 against 4.8. Both are backed by a comparable volume of ratings — 10 and 10 respectively. Written reviews complicate that: 75% of Resistor Tools's written reviews are positive against 100% of Capacitor's, so the app with the better star average is not the one people write more warmly about.
Resistor Tools ships an update every 2 months, Capacitor every 40 months. The most recent releases landed on September 24, 2026 and September 9, 2026 respectively.
| Parameter | Resistor Tools | Capacitor |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (10 ratings) — better | 4.8 (10 ratings) |
| Positive reviews | 75.0% of reviews | 100.0% of reviews — better |
| Number of ratings | 10 | 10 |
| Update frequency | Every 2 months — better | Every 40 months |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 12.0 — better | 26.0 |
| Further details — not scored | ||
| Size | 4 MB | 8 MB |
| Age rating | 4+ | 4+ |
| Developer | Siu Yuen Ho | Gerhard Lentschik |
Customer experience
Resistor Tools
Capacitor
In-app purchases
Resistor Tools
- Unlock pro feature$0.99
Capacitor
No in-app purchases
Questions
Is Resistor Tools free?
Is Capacitor free?
Which has better reviews, Resistor Tools or Capacitor?
Do Resistor Tools or Capacitor have ads?
Which is updated more often, Resistor Tools or Capacitor?
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