Comparison

Resistor Plus vs Circuit Cubes

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

Circuit Cubes

Add power, motion, and light to toys with electronic building blocks. Control creations with various modes or basic programming. Compatible with major brick brands and includes kit instructions.

Highlights
  • Add power, motion, and light
  • Compatible with major brick brands
  • Control creations via app modes
  • Basic programming interface
  • Includes kit instructions
  • Save custom builds
Features
Read full description

Bring your toys to life with Circuit Cubes, the electronic building blocks that add power, motion, and light to your creations. Designed by STEM teachers, Circuit Cubes can turn on a light, power a motor, or make wheels spin — plus they are compatible with all major brand bricks. The Circuit Cubes app allows you to push the limits of what you can do with your builds. Control your creations by using Tank, Tinker, or Gamepad modes and even create basic programming in the Code interface. The app includes the instructions for all the Circuit Cubes kits. You can also save your own creations to My Builds.

Screenshots

Resistor Plus4 screens
Circuit Cubes4 screens

Verdict

The call

The clearest difference is price: Circuit Cubes at Free against Resistor Plus's $2.99. Circuit Cubes also leads on review sentiment (42% vs 0%) and update cadence (monthly vs every 20 months). On ads, in-app purchases, 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

CostPrice · In-app purchases · Ads · Monetization

Circuit Cubes 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, Circuit Cubes monthly. The most recent releases landed on October 2, 2026 and October 6, 2026 respectively.

Scorecard4 real differences · 6 level
Resistor Plus versus Circuit Cubes: the parameters behind the verdict, then further details
ParameterResistor PlusCircuit Cubes
Price$2.99Free — better
Rating—3.4 (57 ratings) — better
Positive reviews0.0% of reviews42.1% of reviews — better
Number of ratings—57 — better
Update frequencyEvery 20 monthsMonthly — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaidFree — better
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS16.615.0 — better
Further details — not scored
Size1 MB145 MB
Age rating4+4+
DeveloperNitrioTenka Inc

Customer experience

Resistor Plus

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

Circuit Cubes

All ratings57 ratings
Positive57.9%
Neutral5.3%
Negative36.8%
Written reviews19 reviews
Positive42.1%
Neutral15.8%
Negative42.1%

In-app purchases

None

Resistor Plus

No in-app purchases

None

Circuit Cubes

No in-app purchases

Questions

Is Resistor Plus free?
Resistor Plus costs $2.99, with no in-app purchases.
Is Circuit Cubes free?
Circuit Cubes is free to download, with no in-app purchases.
Do Resistor Plus or Circuit Cubes have ads?
Neither Resistor Plus nor Circuit Cubes shows ads.
Which is updated more often, Resistor Plus or Circuit Cubes?
Resistor Plus ships an update every 20 months, and Circuit Cubes monthly. Most recently, Resistor Plus was updated on October 2, 2026 and Circuit Cubes on October 6, 2026.

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