Comparison

Resistor Plus vs CONVERSE

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

Head to head
About

Resistor Plus

Easily calculate resistor values and tolerance using color codes. Simply select the colors for each band, and the app instantly displays the resistance in ohms. Save your results with screenshots for future reference.

Highlights
  • Resistor color code calculation
  • Tolerance calculation
  • Instant results display
  • Copy result functionality
  • Screenshot capability
  • Works on iPhone and iPad
  • Ad-free and private
Features
Read full description

Resistor Calculator is the essential tool for electronics engineers, hobbyists, makers, and students. Instantly decode resistor color bands, calculate circuit values, and look up standard resistor values — all in one app. RESISTOR COLOR CODE CALCULATOR • Support for 4-band, 5-band, and 6-band resistors • Tap color bands on a realistic resistor graphic to read values instantly • View resistance, tolerance, min/max range, and temperature coefficient • Intuitive color picker with all standard EIA color codes REVERSE LOOKUP • Enter a resistance value and get the matching color band combination • Find the closest standard value from E-series tables • Perfect for designing circuits and selecting components SERIES & PARALLEL CALCULATOR • Calculate total resistance for resistors in series or parallel • Add unlimited resistors with engineering notation input (e.g. 4.7k, 2.2M) • See live results with formula reference VOLTAGE DIVIDER • Solve for output voltage (Vout) or unknown resistor (R2) • Interactive circuit diagram updates in real time • Supports engineering notation for quick input E-SERIES REFERENCE LIBRARY • Browse standard resistor values from E12, E24, E48, E96, and E192 series • Search and filter values instantly • Tap to copy any value to clipboard DESIGNED FOR ENGINEERS • Clean, distraction-free interface • Works on iPhone and iPad • No ads, no subscriptions, no internet required • Haptic feedback for a responsive experience Whether you are building your first LED circuit or designing professional PCBs, Resistor Calculator Pro gives you fast, accurate answers right on your device. Download now and keep the most useful resistor tool in your pocket. Resistor Parameters: Band Digit Black - 0 Brown - 1 Red - 2 Orange - 3 Yellow - 4 Green - 5 Blue - 6 Violet - 7 Grey - 8 White - 9 Band Multiplier Black × 1 Ω Brown × 10 Ω Red × 100 Ω Orange × 1 kΩ Yellow × 10 kΩ Green × 100 kΩ Blue × 1 MΩ Violet × 10 MΩ Gold × 0.1 Ω Silver × 0.01 Ω Band Tolerance Brown - 1% Red - 2% Gold - 5% Silver - 10% A resistor is a passive two-terminal electrical component that implements electrical resistance as a circuit element. In electronic circuits, resistors are used to reduce current flow, adjust signal levels, divide voltages, bias active elements, and terminate transmission lines, among other uses. A resistor opposes the flow of electrical current; the higher the value of the resistor, the more it opposes the current flow. Values are given in ohms. Thank you for your support! Visit nitrio.com for more apps for your iOS devices.

About

CONVERSE

This app helps middle school students improve their English skills through interactive global adventures. Students engage with fun characters, learn about different cultures, and earn rewards to aid their progress. It offers instant feedback to enhance learning.

Highlights
  • Engaging characters
  • Global adventures
  • Earn rewards
  • Fun facts
  • Interactive feedback
Read full description

Welcome to Converse: World Travel, the ultimate app for middle school students to practice and improve their English skills! Join our fun characters on a journey around the world, exploring new places and learning along the way. Features: Engaging Characters: Meet and interact with a cast of fun and educational characters. Global Adventures: Travel to different countries and learn about their cultures while practicing English. Earn Rewards: Collect coins as you complete challenges and use them to buy boosts and power-ups from the store to help answer questions and earn more coins. Fun Facts: Discover interesting facts about the world and enhance your knowledge. Interactive Feedback: Receive instant feedback on your progress to help you improve. Download Converse: World Travel today and make learning English an exciting and rewarding experience!"

Screenshots

Resistor Plus4 screens
CONVERSE4 screens

Verdict

The call

The clearest difference is price: CONVERSE at Free against Resistor Plus's $2.99. CONVERSE also leads on update cadence (every 6 months vs every 20 months) and iOS requirement (13.4 vs 16.6). On ads, in-app purchases 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

CONVERSE is free to download; Resistor Plus costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Resistor Plus ships an update every 20 months, CONVERSE every 6 months. The most recent releases landed on November 1, 2026 and November 3, 2026 respectively.

Scorecard4 real differences · 6 level
Resistor Plus versus CONVERSE: the parameters behind the verdict, then further details
ParameterResistor PlusCONVERSE
Price$2.99Free — better
Rating—5.0 (1 ratings) — better
Positive reviews0.0% of reviews—
Number of ratings—1 — better
Update frequencyEvery 20 monthsEvery 6 months — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaidFree — better
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS16.613.4 — better
Further details — not scored
Size1 MB33 MB
Age rating4+4+
DeveloperNitrioEducational Testing Service

Customer experience

Resistor Plus

Written reviews3 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

CONVERSE

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Resistor Plus

No in-app purchases

None

CONVERSE

No in-app purchases

Questions

Is Resistor Plus free?
Resistor Plus costs $2.99, with no in-app purchases.
Is CONVERSE free?
CONVERSE is free to download, with no in-app purchases.
Do Resistor Plus or CONVERSE have ads?
Neither Resistor Plus nor CONVERSE shows ads.
Which is updated more often, Resistor Plus or CONVERSE?
Resistor Plus ships an update every 20 months, and CONVERSE every 6 months. Most recently, Resistor Plus was updated on November 1, 2026 and CONVERSE on November 3, 2026.

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