Comparison

Electronic Toolbox Pro vs CircuitShepherd

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

Head to head
About

Electronic Toolbox Pro

This comprehensive electronics engineering app provides professionals, hobbyists, and students with a vast array of tools and reference materials. It features a circuit editor, numerous calculation and conversion tools, and extensive component specifications with parametric search capabilities.

Highlights
  • Circuit Editor
  • Component reference with parametric search
  • Numerous calculation tools
  • Unit and HEX/Decimal conversion tools
  • Scientific calculator, frequency generator, oscilloscope
  • Project diagram and document storage
  • Reference tools for major development boards
Read full description

The *** ORIGINAL *** Electronic Toolbox Pro App "The best and most complete Electronics App on the App Store" for Professionals, Hobbyists, Makers, HAMs and Students right at your fingertips! Best of all: Continuously improved since 2009 - FOR FREE - NO IN APP PURCHASE - NO FAKE REVIEWS! What users wrote about this app: Well worth the money ***** I researched all EE apps before buying this one and I have to say that this one is the best by far. The developer is very accommodating to requests and suggestions and provides updates frequently. Very, very happy with this app. Simply brilliant ***** I don't normally review apps but I was so impressed with this one I felt I had to make a brief comment. Buy it, I promise you won't be disappointed. Supports iOS 14 back to iOS 11 and all available Apple iPhone and iPad models. See the online Manual at http://go-to.me/etb-manual Feature Highlights: ■ Circuit Editor ■ Most comprehensive and complete Electronics app available ■ Designed for Novices as well as Experts ■ Numerous individual tools from "A" like ASCII Table to "Z" like Zener Diode calculation. If something is missing, just let me know ■ Provides wide variety of simple and complex tools, such as the resistor color code conversion to the PCB Trace width tools ■ Various calculation tools available, such as the NE555 circuit calculation and the passive cooling calculator ■ Includes reference tools with millions of component specs for ICs, Transistors, FETs, Controllers with parametric searches, pinout and cross reference information, and complete datasheets ■ Provides information about Batteries, Drill sizes, Hybrid Amplifiers, Socket pinouts, package sizes and much more ■ Includes conversion tools, such as the Unit conversion tool, the HEX/Decimal/Float Tool, Frequency and AWG / SWG tools ■ Parametric search for Components with certain specs and cross references ■ Global search for terms or components across all tools ■ Customizable arrangement of tools for quick and easy access ■ Includes a scientific desktop calculator, a frequency generator, and an oscilloscope ■ Comprehensive reference glossary (english only) ■ Content can be updated "over-the-air" and amended quickly and easily ■ Store diagrams, documents, and specs of a project ■ iCloud support ■ No ads or in-app purchases ■ Can be used without Internet access ■ Special keyboard available for quicker entry of SI units ■ And much more... Now also includes reference tools for major boards like RaspBerry Pi, Arduino, BeagleBone, TI-Launchpad, Nano Pi, Orange Pi, Banana Pi, Odroid, Cubieboard and SparkFun! For further information about this App, just have a look at my website: ■ electronic-toolbox.com ■ or just send me an E-mail. The new Version of the app has just been released and as always, this update is FOR FREE to all users of Electronic Toolbox. At this point, many thanks for the ideas and suggestions I have received from the huge user community. You helped me to keep on improving my app with every new update. This App will continue to live and grow over the time. So I still look forward to all additional ideas, suggestions or even criticism so that I can continuously improve my App. Best regards, Marcus Read more on : http://go-to.me/etb

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

Electronic Toolbox Pro4 screens
CircuitShepherd4 screens

Verdict

The call

The clearest difference is review sentiment: Electronic Toolbox Pro at 93% against CircuitShepherd's 0%. Electronic Toolbox Pro also leads on rating (4.7 vs 1.5) and in-app purchases (none vs 1). CircuitShepherd's advantage is price (Free vs $12.99) and update cadence (every 3 weeks vs every 2 months). On ads 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

CircuitShepherd is free to download; Electronic Toolbox Pro costs $12.99 up front. CircuitShepherd sells 1 in-app purchase, starting at $6.99 per month. Electronic Toolbox Pro asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Electronic Toolbox Pro holds the better App Store score, 4.7 against 1.5. That said, the two scores are not equally well evidenced: Electronic Toolbox Pro has 245 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 93% of Electronic Toolbox Pro's written reviews are positive against 0% of CircuitShepherd's.

UpkeepUpdate frequency

Electronic Toolbox Pro ships an update every 2 months, CircuitShepherd every 3 weeks. The most recent releases landed on October 15, 2026 and October 2, 2026 respectively.

Scorecard8 real differences · 2 level
Electronic Toolbox Pro versus CircuitShepherd: the parameters behind the verdict, then further details
ParameterElectronic Toolbox ProCircuitShepherd
Price$12.99Free — better
Rating4.7 (245 ratings) — better1.5 (2 ratings)
Positive reviews92.6% of reviews — better0.0% of reviews
Number of ratings245 — better2
Update frequencyEvery 2 monthsEvery 3 weeks — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationPaidFree with in-app purchases — better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS11.1 — better14.0
Further details — not scored
Size201 MB49 MB
Age rating4+4+
DeveloperMarcus RoskoschJosef Woess

Customer experience

Electronic Toolbox Pro

All ratings245 ratings
Positive93.9%
Neutral0.8%
Negative5.3%
Written reviews323 reviews
Positive92.6%
Neutral1.9%
Negative5.6%

CircuitShepherd

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

Bugs and requests

Electronic Toolbox Pro

Reported bugs

2 issues
  • Equation disappearing in calculator
  • Circuit editor not working with touch input

Requested features

4 requests
  • More microcontroller and SBC support
  • Circuit simulation and design capabilities
  • Educational resources and tutorials
  • Improved circuit editor functionality

CircuitShepherd

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

Electronic Toolbox Pro

No in-app purchases

1 purchases

CircuitShepherd

Subscriptions1
  • full version$6.991 Month

Questions

Is Electronic Toolbox Pro free?
Electronic Toolbox Pro costs $12.99, with no in-app purchases.
Is CircuitShepherd free?
CircuitShepherd is free to download, with in-app purchases available.
Which has better reviews, Electronic Toolbox Pro or CircuitShepherd?
Electronic Toolbox Pro is rated higher. Electronic Toolbox Pro averages 4.7 out of 5 from 245 ratings, while CircuitShepherd averages 1.5 from 2 ratings.
Do Electronic Toolbox Pro or CircuitShepherd have ads?
Neither Electronic Toolbox Pro nor CircuitShepherd shows ads.
Which is updated more often, Electronic Toolbox Pro or CircuitShepherd?
Electronic Toolbox Pro ships an update every 2 months, and CircuitShepherd every 3 weeks. Most recently, Electronic Toolbox Pro was updated on October 15, 2026 and CircuitShepherd on October 2, 2026.

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