Comparison

Electronic Calculator vs Electronics Reference Toolkit

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

Head to head
About

Electronic Calculator

This app provides instant, accurate calculations for electronics students and engineers. It includes tools for Ohm's Law, resistor color codes, voltage dividers, and unit conversions. Designed for ease of use and offline functionality, it offers a professional-grade experience without ads.

Highlights
  • Ohm's Law Calculator
  • Resistor Color Code Decoder
  • Voltage Divider Calculator
  • Smart Unit Converter
  • Offline Functionality
  • Ad-Free Experience
Features
Read full description

Amperio is the essential electronics toolkit every student and engineer needs! Whether you're studying electrical engineering or working on circuit projects, Amperio provides instant, accurate calculations for your everyday electronics needs. KEY FEATURES: Ohm's Law Calculator Calculate voltage, current, resistance, and power with Amperio's intuitive interface. Input any two values and instantly get your results - perfect for circuit analysis and component selection. Resistor Color Code Decoder Never struggle with resistor values again! Amperio's visual color band selector works with 4-band and 5-band resistors. Simply tap the colors and get instant resistance values with tolerance. Voltage Divider Calculator Design and analyze voltage divider circuits instantly! Input any three values (Vin, Vout, R1, R2) and Amperio calculates the missing value - essential for signal conditioning and biasing circuits. Smart Unit Converter Convert between voltage (mV, V, kV), current (μA, mA, A), resistance (Ω, kΩ, MΩ), frequency (Hz, kHz, MHz, GHz), and power units seamlessly. WHY CHOOSE AMPERIO: - Lightning Fast - Instant calculations, no loading screens - Student Friendly - Perfect for homework and lab work - Professional Grade - Accurate formulas engineers trust - Clean Interface - No clutter, just results - Works Offline - Calculate anywhere, anytime - No Ads Ever - Premium experience with lifetime access PERFECT FOR: Electronics engineering students Electrical engineers and technicians Circuit design and analysis Component selection and verification Homework and exam preparation Lab work and projects Electronics hobbyists and makers Amperio transforms complex electronics calculations into simple, instant results. Get the complete professional toolkit for just $3.99 - less than a coffee, but lasts forever! Download Amperio today and experience the fastest way to solve circuit problems on your iPhone. PREMIUM FEATURES INCLUDED: 4 Essential calculators (Ohm's Law, Voltage Divider, Resistor Decoder, Unit Converter) No advertisements ever Offline functionality Lifetime access - pay once, use forever Professional-grade accuracy Coming in Future Updates: Advanced circuit calculators and filter design Calculation history with favorites Photo resistor value recognition Dark mode interface Export and share results One purchase. Four essential tools. Unlimited calculations. Amperio - the smart investment for serious electronics work. --- Learn more: https://amperio.paulcontre.com Terms of Use: https://amperio.paulcontre.com/terms Need help?: help@paulcontre.com EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://amperio.paulcontre.com/privacy

About

Electronics Reference Toolkit

This app provides a comprehensive suite of tools for electronics calculations and reference. It includes calculators for resistors, LEDs, capacitors, and voltage dividers, along with a unit converter and transistor database. Designed for speed and offline use, it's ideal for students, hobbyists, and engineers.

Highlights
  • Resistor Calculator (4/5 band)
  • Ohm's Law Calculator
  • LED Resistor Calculator
  • Capacitor Decoder
  • Voltage Divider Calculator
  • Unit Converter
  • Transistor Reference
Features
Read full description

ElecKit is a lightweight electronics toolkit built for fast lookups and quick calculations—perfect for students, hobbyists, and engineers. Tools included - Resistor Calculator (4/5 band) + tolerance & range - Ohm’s Law (V/I/R/P) - LED Resistor Calculator (Vs, Vf, If) - Capacitor Decoder (3-digit & EIA codes) - Voltage Divider (2 or 3 resistors) - RC/RL Time Constant with charging curve & key points (1τ…5τ) - Unit Converter (Ω, F, H, Hz + prefixes) - Battery Life Estimator (battery type, load current, duty cycle) - Transistor Reference (NPN, PNP, MOSFET) with fast search & filters Notes * Designed for speed, clean UI, and offline use. * Reference values may vary by manufacturer—always confirm with the datasheet.

Screenshots

Electronic Calculator4 screens
Electronics Reference Toolkit4 screens

Verdict

The call

The clearest difference is monetization model: Electronics Reference Toolkit at free against Electronic Calculator's paid. Electronics Reference Toolkit also leads on ratings volume (7 vs 1). On price, rating, ads and in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for Electronic Calculator against 4.9 for Electronics Reference Toolkit. That said, the two scores are not equally well evidenced: Electronics Reference Toolkit has 7 ratings behind it against 1, so its average is the more settled of the two.

Scorecard2 real differences · 7 level
Electronic Calculator versus Electronics Reference Toolkit: the parameters behind the verdict, then further details
ParameterElectronic CalculatorElectronics Reference Toolkit
PriceFreeFree
Rating5.0 (1 ratings) — better4.9 (7 ratings)
Number of ratings17 — better
Update frequency—Fortnightly
AdsNoNo
In-app purchasesNoNo
MonetizationPaidFree — better
DevicesiPhone, iPad — betteriPhone
Requires iOS17.616.6 — better
Further details — not scored
Size6 MB7 MB
Age rating4+4+
DeveloperPaul ContrerasHa Do Thi Thu

Customer experience

Electronic Calculator

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

Electronics Reference Toolkit

All ratings7 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Electronic Calculator

No in-app purchases

None

Electronics Reference Toolkit

No in-app purchases

Questions

Is Electronic Calculator free?
Electronic Calculator is free to download, with no in-app purchases.
Is Electronics Reference Toolkit free?
Electronics Reference Toolkit is free to download, with no in-app purchases.
Which has better reviews, Electronic Calculator or Electronics Reference Toolkit?
Electronic Calculator is rated higher. Electronic Calculator averages 5.0 out of 5 from 1 ratings, while Electronics Reference Toolkit averages 4.9 from 7 ratings.
Do Electronic Calculator or Electronics Reference Toolkit have ads?
Neither Electronic Calculator nor Electronics Reference Toolkit shows ads.

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