Comparison

Resistor Tools vs Capacitor

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

Head to head
About

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.

Highlights
  • Series and parallel resistor calculation
  • Resistor combination finder
  • Voltage divider ratio and value calculation
  • Inverting amplifier gain calculation
  • Save combinations to CSV
Features
Read full description

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

About

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.

Highlights
  • 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
Features
Read full description

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

Resistor Tools4 screens
Capacitor4 screens

Verdict

The call

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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Resistor Tools sells 1 one-off in-app purchase. Capacitor asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

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.

UpkeepUpdate frequency

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.

Scorecard6 real differences · 4 level
Resistor Tools versus Capacitor: the parameters behind the verdict, then further details
ParameterResistor ToolsCapacitor
PriceFreeFree
Rating5.0 (10 ratings) — better4.8 (10 ratings)
Positive reviews75.0% of reviews100.0% of reviews — better
Number of ratings1010
Update frequencyEvery 2 months — betterEvery 40 months
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS12.0 — better26.0
Further details — not scored
Size4 MB8 MB
Age rating4+4+
DeveloperSiu Yuen HoGerhard Lentschik

Customer experience

Resistor Tools

All ratings10 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews4 reviews
Positive75.0%
Neutral0.0%
Negative25.0%

Capacitor

All ratings10 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

1 purchases

Resistor Tools

One-time1
  • Unlock pro feature$0.99
None

Capacitor

No in-app purchases

Questions

Is Resistor Tools free?
Resistor Tools is free to download, with in-app purchases available.
Is Capacitor free?
Capacitor is free to download, with no in-app purchases.
Which has better reviews, Resistor Tools or Capacitor?
Resistor Tools is rated higher. Resistor Tools averages 5.0 out of 5 from 10 ratings, while Capacitor averages 4.8 from 10 ratings.
Do Resistor Tools or Capacitor have ads?
Neither Resistor Tools nor Capacitor shows ads.
Which is updated more often, Resistor Tools or Capacitor?
Resistor Tools ships an update every 2 months, and Capacitor every 40 months. Most recently, Resistor Tools was updated on September 24, 2026 and Capacitor on September 9, 2026.

Other comparisons