Comparison

Circuit Laboratory HD vs Electronics Toolkit calc

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

Head to head
About

Circuit Laboratory HD

This app allows users to design and analyze electronic circuits graphically. It supports various analysis types including DC, AC, multifrequency AC, and transient, with a wide range of components and measuring instruments.

Highlights
  • Graphical circuit design
  • DC analysis
  • AC analysis
  • Multifrequency AC analysis
  • Transient analysis
  • Component library
  • Measuring instruments
Features
Read full description

Circuit Lab HD is an electronic circuit analysis tool based on the modified node analysis method. It uses the same models of Spice. Four kind of analysis may be conducted: - DC: linear and non linear circuits with continuous voltage and current sources; - AC: linear and non linear circuits with sinusoidal voltage and current sources; - Multifrequency AC Analysis: linear and non linear circuits with sinusoidal voltage and current sources. It allows to analyze the circuit behavior in a range of frequencies. Useful to study the bandwidth of the circuit; - Transient: linear and non linear circuits, with sinusoidal and pulse voltage sources. User can graphically draw the circuit dragging and dropping components, then the circuit can be analyzed. Circuit may be controlled by means of the following gestures: - Drag: to move the circuit into the desired position - Tap on a component: to modify the component's parameters - Pinch: to zoom in and out - Double finger double Tap: to reset position and zoom level to the original values Tapping DC button, user gets voltage at each circuit's node. Tapping AC button, user gets voltage phasors at each circuit node or the bode graph of the voltage at each circuit node (see 06 BJT - Common Emitter). User can select the desired phasors to get the related graphs which may be controlled by means of the following gestures: - Drag: To move the chart in the desired position; - Pinch: To enlarge or shrinks the graph; - Double Tap with two fingers to restore the position and zoom level to the original values. Tapping Transient button, user can analyze circuit's behavior during time and get graphs of voltages and currents function of time. These graphs may be controlled by means of the following gestures: - Drag: To move the chart in the desired position; - Pinch: To enlarge or shrinks the graph; - Double Tap with two fingers to restore the position and zoom level to the original values. Moreover, user can enable a mobile cursor to read the values ​​in the different points of time (tap on the graph to display the cursor, tap to remove it and move it to read the values​​). Each circuit can contain: - Resistors - Capacitors - Inductors - Mutual coupled inductors - Independent sinusoidal voltage generators - Independent voltage pulse generators (with which you can also generate square, triangular and sawtooth waves); - Independent sinusoidal current generators - Controlled voltage generators - Controlled current generators - Operation Amplifier - Diodes - Zener Diodes - NPN and PNP Bjts - Channel-N and Channel-P JFet - Channel-N and Channel-P Mosfet In addition, there are the following measuring instruments: - Voltmeter; - Ammeter. User can manage his own components library to store most used components. For each component, a short video is available to demonstrate how to insert it into the circuit and edit it's characteristics. In addition, there are some more detailed video tutorials to learn how to use the application. Circuits may be easily stored and reused. User can print: - Circuits and component's list - Transient Analysis graphs (the mobile cursor is also printed if visible) Circuits can be easily shared through iCloud, by mail in the internal format so that can be reused by other users (on iPhone too) and in PDF format and they are compatible with Circuit Lab for Mac. Visit my site for video tutorials and details about operational amplifier's internal model, diode's internal model and Bjt's internal model.

About

Electronics Toolkit calc

Features
Read full description

Electronics Calculator is a complete engineering toolkit designed to help students, hobbyists, and professionals perform accurate electronic circuit calculations quickly and easily. Whether you are studying electronics, building circuits, or working on design projects, this app provides all the essential calculators you need in one place. Simplify complex formulas, save time on manual calculations, and improve design accuracy with an intuitive and easy-to-use interface. Key Features Ohm’s Law Calculator Instantly calculate voltage, current, resistance, and power for quick circuit analysis. Resistor Color Code Reader Decode resistor color bands to identify resistance values and tolerance with ease. Capacitor & Inductor Calculators Compute capacitance, inductance, energy, charge, and time constants for accurate component selection. LED Resistor Calculator Find the correct resistor value for LED circuits to ensure proper brightness and safe operation. Series & Parallel Resistor Tools Calculate equivalent resistance for complex resistor networks quickly. Voltage & Current Divider Calculators Design efficient circuits by accurately determining voltage and current distribution. Frequency & Timing Calculations Perform essential time and frequency computations for oscillators, timers, and signal circuits. Decibel (dB) Converter Convert power and voltage ratios into decibels for signal and communication analysis. Why Choose Electronics Calculator? Multiple electronics calculators in one app Fast, accurate, and easy-to-use tools Ideal for students, technicians, and engineers Works offline anytime for quick reference Make your electronic calculations faster, easier, and more reliable with Electronics Calculator, the all-in-one companion for circuit design and learning.

Screenshots

Electronics Toolkit calc4 screens

Verdict

The call

The clearest difference is update cadence: Electronics Toolkit calc at every 4 months against Circuit Laboratory HD's every 27 months. Electronics Toolkit calc also leads on price ($4.99 vs $6.99) and device support (3 vs 1). On ads, in-app purchases and iOS requirement there is nothing between them.

Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS

CostPrice Β· In-app purchases Β· Ads Β· Monetization

Circuit Laboratory HD costs $6.99 and Electronics Toolkit calc $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Circuit Laboratory HD ships an update every 27 months, Electronics Toolkit calc every 4 months. The most recent releases landed on September 30, 2026 and October 1, 2026 respectively.

Scorecard3 real differences Β· 5 level
Circuit Laboratory HD versus Electronics Toolkit calc: the parameters behind the verdict, then further details
ParameterCircuit Laboratory HDElectronics Toolkit calc
Price$6.99$4.99 β€” better
Positive reviews0.0% of reviewsβ€”
Update frequencyEvery 27 monthsEvery 4 months β€” better
AdsNoNo
In-app purchasesNoNo
MonetizationPaidβ€”
DevicesiPadiPhone, iPad, iPod β€” better
Requires iOS12.4 β€” better13.0
Further details β€” not scored
Size180 MB25 MB
Age rating4+4+
DeveloperFabrizio BocoKantaben Gorasiya

In-app purchases

None

Circuit Laboratory HD

No in-app purchases

None

Electronics Toolkit calc

No in-app purchases

Questions

Is Circuit Laboratory HD free?
Circuit Laboratory HD costs $6.99, with no in-app purchases.
Is Electronics Toolkit calc free?
Electronics Toolkit calc costs $4.99, with no in-app purchases.
Do Circuit Laboratory HD or Electronics Toolkit calc have ads?
Neither Circuit Laboratory HD nor Electronics Toolkit calc shows ads.
Which is updated more often, Circuit Laboratory HD or Electronics Toolkit calc?
Circuit Laboratory HD ships an update every 27 months, and Electronics Toolkit calc every 4 months. Most recently, Circuit Laboratory HD was updated on September 30, 2026 and Electronics Toolkit calc on October 1, 2026.

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