Comparison

Substation Engineer Suite vs Libertarian Stone

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

Head to head
About

Substation Engineer Suite

Features
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Substation Engineer Suite is the complete professional reference and learning suite for high-voltage power substation design โ€” a fully interactive 3D substation, an extensive engineering drawing library, IEEE/NFPA references, and a full set of field calculators, all in one app. Whether you're a power engineer reviewing a single-line diagram, a student learning how a substation actually works, or a field technician who needs a fast calculation on site, SubstationEngineer puts substation knowledge in your pocket โ€” and it works completely offline. The app is organized into two modules. Buy only what you need, or get both in a discounted bundle. ELECTRICAL SUBSTATION TOOLKIT โ€ข 160+ professional engineering illustrations across 10 categories โ€ข Pinch-to-zoom with smooth swipe navigation โ€ข Favorites and personal notes on any drawing โ€ข Full-text search across the entire library โ€ข 10 engineering calculators (transformer sizing, fault current, grounding, and more) โ€ข IEEE / NFPA reference library โ€ข 30-question knowledge quiz 3D EXPLORER โ€ข Interactive 3D substation model with 54 tappable components โ€ข Tap any component for its code reference and engineering notes โ€ข X-Ray and Energize visualization modes โ€ข 8 filterable equipment systems โ€ข 15 engineering calculators (IEEE 80 grounding, fault, transformer, and more) โ€ข Learning Hub: quiz, glossary, guided tour, and fault simulator โ€ข Substation image gallery WHY YOU'LL USE IT โ€ข Works 100% offline โ€” no account and no internet connection required โ€ข One-time purchases โ€” no subscriptions, ever โ€ข Buy a single module or unlock everything with the bundle โ€ข Grounded in IEEE and NFPA engineering standards โ€ข Built for real engineering work, from the classroom to the control house From study to substation, SubstationEngineer is the reference you'll actually keep on your phone. IEEE and NFPA are trademarks of their respective owners. This app is an independent reference and study aid and is not affiliated with, endorsed by, or sponsored by IEEE or NFPA.

About

Libertarian Stone

Features
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Discover the Philosophy of Liberty with Libertarian Stone! The most comprehensive educational app on libertarianism, offering a rich and interactive learning experience to understand the fundamentals of the philosophy of liberty. # COMPLETE EDUCATIONAL LIBRARY Access to classic books on libertarianism Intelligent reading progress system Time estimate per chapter # ORGANIZED EDUCATIONAL VIDEOS Carefully selected thematic playlists Integrated and optimized YouTube player Content from basic to advanced concepts Complete progress tracking # INTERACTIVE QUIZ SYSTEM Multiple-choice questions on all topics XP scoring system Detailed explanations for each answer # INTEGRATED POMODORO TIMER Proven study technique Focused Fully customizable settings Audio and visual notifications # MULTILINGUAL SUPPORT English Spanish - Full translation Portuguese - Full language Region-adaptable interface # MODERN AND ACCESSIBLE DESIGN Automatic light and dark themes Responsive and intuitive interface Smooth and professional animations # PERFECT FOR: Students Political Philosophy Interested in Austrian Economics Advocates of Individual Liberty Curious About Libertarian Philosophy # PROGRESS SYSTEM Earn XP by Completing Activities Level and Achievement System Detailed Learning Statistics Track Your Intellectual Growth No Personal Information Collection # CONSTANT UPDATES New Content Added Regularly Innovative Features Under Development Download Now and Start Your Journey in the Philosophy of Liberty!

Screenshots

Substation Engineer Suite4 screens
Libertarian Stone4 screens

Verdict

The call

The clearest difference is ads: Substation Engineer Suite at none against Libertarian Stone's shown. Libertarian Stone's advantage is iOS requirement (15.0 vs 17.0). On price, in-app purchases and device support there is nothing between them.

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

CostPrice ยท In-app purchases ยท Ads ยท Monetization

Both are free to download. Substation Engineer Suite sells 3 one-off in-app purchases and Libertarian Stone sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Scorecard2 real differences ยท 4 level
Substation Engineer Suite versus Libertarian Stone: the parameters behind the verdict, then further details
ParameterSubstation Engineer SuiteLibertarian Stone
PriceFreeFree
Update frequencyโ€”Every 9 days
AdsNo โ€” betterYes
In-app purchasesYesYes
DevicesiPhone, iPadiPhone, iPad, iPod โ€” better
Requires iOS17.015.0 โ€” better
Further details โ€” not scored
Size463 MB54 MB
Age rating4+9+
DeveloperYuhsiu LaiLiberBlock LLC

In-app purchases

3 purchases

Substation Engineer Suite

One-time3
  • Electrical Substation Toolkit$4.99
  • 3D Explorer$4.99
  • All Modules Bundle$7.99
1 purchases

Libertarian Stone

One-time1
  • Libertarian Stone Premium$9.99

Questions

Is Substation Engineer Suite free?
Substation Engineer Suite is free to download, with in-app purchases available.
Is Libertarian Stone free?
Libertarian Stone is free to download, with in-app purchases available.
Do Substation Engineer Suite or Libertarian Stone have ads?
Libertarian Stone shows ads; Substation Engineer Suite does not.

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