Comparison

Calctronics vs CircuitShepherd

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

Head to head
About

Calctronics

This app provides a comprehensive suite of calculators and design tools for electronic engineering. It assists with circuit design, filter analysis, and component calculations for resistors, capacitors, and inductors. Ideal for both professionals and students, it simplifies complex electronic projects.

Highlights
  • Comprehensive calculator collection
  • Filter design with graph plotting
  • Resistor, transistor, capacitor design tools
  • Amplifier and inductor design
  • Circuit analysis and design
  • Offline functionality
Features
Read full description

Introducing the ultimate electronic engineering app! With its comprehensive collection of calculators and design tools, you'll be able to tackle any electronic project with ease. Our app features a filter design calculator that allows you to plot graphs, making it easier to visualize your calculations. Additionally, we've included resistor, transistor, capacitor, amplifier, and inductor design tools to help you tackle any electronic design problem. Whether you're a professional electronic engineer or just starting out, this app is the perfect tool to have in your arsenal. Download now and experience the power of electronic engineering in the palm of your hand! Here are some stuffs you can do with the app:- Circuit design Electrical calculations Filter design Resistor calculations Transistor design Capacitor design Amplifier design Inductor design Electrical engineering tools Electronic engineering calculator Circuit analysis --- The app contains the following calculators --- • Resistor Colour Code • Resistors in series and parallel • Capacitors in series and parallel • Capacitor charge • Resistor's Y to delta and delta to Y Converter • Resistor's Pi, Tee and bridge Tee attenuator • SMD Resistor Code • Capacitor Code includes polyester and ceramic capacitors • Ohm's Law • Transistor amplifier calculator • Filters Sallen-Key active filter, Butterworth, Chebyshev and Bessel filters • Voltage divider • Resistor Ratio • Skin depth • Decibel to Watt and Watt to decibel converter • Coaxial cable and 2 parallel wires impedance and capacitance calculator • Operational Amplifier eg inverting amplifier, Difference amplifier and Non inverting amplifier • LED series Resistor Calculator • Adjustable voltage regulator • 555 timer Calculator including Astable and monostable timer • Power dissipation • Micro strip trace width and impedance calculator • Inductor Design Tool • Cylinderical wave guide Calculator • Rectangular wave guide Calculator • PCB Trace Width Calculator • Series capacitor, inductor and resistor Resonance • Capacitive Reactance • Inductive Reactance • Power Calculator • Decibel Converter • Crossover calculator • Band pass and Band reject filter design Whether you're a professional engineer or a student learning about electronics, Electronics Calculator Pro is the perfect tool for your circuit design needs. With its comprehensive set of calculator tools and offline functionality, you'll have everything you need to design and analyze your circuits with confidence. Try it out today!

About

CircuitShepherd

Automate electronic circuit design with AI-driven parameter optimization. Define schematics and design goals, and the software finds optimal part values in real-time. Save time on calculations and iterations with this intuitive tool.

Highlights
  • Automated parameter optimization
  • AI-driven circuit engineering
  • Real-time design goal finding
  • Intuitive user interface
  • Schematic definition
  • Part value calculation
Read full description

CircuitShepherd provides you with analog-design superpowers by doing automated parameter optimization it in realtime! It's a novel Electronic Design Automation software for AI driven electronics circuit engineering. You define an arbitrary schematic including specific design goals and CircuitShepherd will find the right part values for you. This is achieved by combining traditional circuit simulation techniques with AI driven parameter estimation algorithms and finally a simple and intuitive user interface. It’s easy to learn, fast to use and it will save you a lot of time by automating your daily calculation and iteration tasks. CircuitShepherd is free to use immediately (with very basic features). The full version with all features enabled is available via in-app purchase (subscription-based). Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://www.circuitshepherd.com/privacy-policy-iOS.html

Screenshots

Calctronics4 screens
CircuitShepherd4 screens

Verdict

The call

The clearest difference is rating: Calctronics at 4.0 against CircuitShepherd's 1.5. Calctronics also leads on monetization model (free vs free with in-app purchases) and review sentiment (14% vs 0%). CircuitShepherd's advantage is ads (none vs shown) and update cadence (every 3 weeks vs every 2 months). On price, ratings volume, 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

Both are free to download. Calctronics sells 1 one-off in-app purchase and CircuitShepherd sells 1 in-app purchase, starting at $6.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Calctronics holds the better App Store score, 4.0 against 1.5. Both are backed by a comparable volume of ratings — 5 and 2 respectively. Written reviews point the same way: 14% of Calctronics's written reviews are positive against 0% of CircuitShepherd's.

UpkeepUpdate frequency

Calctronics ships an update every 2 months, CircuitShepherd every 3 weeks. The most recent releases landed on September 9, 2026 and June 4, 2026 respectively.

Scorecard5 real differences · 5 level
Calctronics versus CircuitShepherd: the parameters behind the verdict, then further details
ParameterCalctronicsCircuitShepherd
PriceFreeFree
Rating4.0 (5 ratings) — better1.5 (2 ratings)
Positive reviews14.3% of reviews — better0.0% of reviews
Number of ratings5 — better2
Update frequencyEvery 2 monthsEvery 3 weeks — better
AdsYesNo — better
In-app purchasesYesYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS13.0 — better14.0
Further details — not scored
Size35 MB49 MB
Age rating4+4+
DeveloperAnas AbubakarJosef Woess

Customer experience

Calctronics

All ratings5 ratings
Positive80.0%
Neutral0.0%
Negative20.0%
Written reviews7 reviews
Positive14.3%
Neutral14.3%
Negative71.4%

CircuitShepherd

All ratings2 ratings
Positive0.0%
Neutral0.0%
Negative100.0%
Written reviews1 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

In-app purchases

1 purchases

Calctronics

One-time1
  • Upgrade to the Pro version$2.99
1 purchases

CircuitShepherd

Subscriptions1
  • full version$6.991 Month

Questions

Is Calctronics free?
Calctronics is free to download, with in-app purchases available.
Is CircuitShepherd free?
CircuitShepherd is free to download, with in-app purchases available.
Which has better reviews, Calctronics or CircuitShepherd?
Calctronics is rated higher. Calctronics averages 4.0 out of 5 from 5 ratings, while CircuitShepherd averages 1.5 from 2 ratings.
Do Calctronics or CircuitShepherd have ads?
Calctronics shows ads; CircuitShepherd does not.
Which is updated more often, Calctronics or CircuitShepherd?
Calctronics ships an update every 2 months, and CircuitShepherd every 3 weeks. Most recently, Calctronics was updated on September 9, 2026 and CircuitShepherd on June 4, 2026.

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