# Substation Engineer Suite — 3D Models, Drawings & Toolkit

> 3D Models, Drawings & Toolkit (iPhone/iPad app by Yuhsiu Lai.)

- Source: https://appshunter.io/ios/app/substation-engineer-suite/id6780664986 (this page in markdown: same URL + `.md`)
- Developer: [Yuhsiu Lai](https://appshunter.io/developer/433114647)
- Category: Education, Utilities
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 17.0 · 463 MB
- Languages: American English
- Released: 2026-06-18
- Data updated: 2026-09-06
- User reviews in markdown: https://appshunter.io/ios/app/substation-engineer-suite/id6780664986/reviews.md

## What is Substation Engineer Suite?

Substation Engineer Suite is the complete professional reference and learning suite for high-voltage power substation design — 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 — 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
• 160+ professional engineering illustrations across 10 categories
• Pinch-to-zoom with smooth swipe navigation
• Favorites and personal notes on any drawing
• Full-text search across the entire library
• 10 engineering calculators (transformer sizing, fault current, grounding, and more)
• IEEE / NFPA reference library
• 30-question knowledge quiz

3D EXPLORER
• Interactive 3D substation model with 54 tappable components
• Tap any component for its code reference and engineering notes
• X-Ray and Energize visualization modes
• 8 filterable equipment systems
• 15 engineering calculators (IEEE 80 grounding, fault, transformer, and more)
• Learning Hub: quiz, glossary, guided tour, and fault simulator
• Substation image gallery

WHY YOU'LL USE IT
• Works 100% offline — no account and no internet connection required
• One-time purchases — no subscriptions, ever
• Buy a single module or unlock everything with the bundle
• Grounded in IEEE and NFPA engineering standards
• 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.

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Electrical Substation Toolkit | $4.99 | one-time |
| 3D Explorer | $4.99 | one-time |
| All Modules Bundle | $7.99 | one-time |



## Version history (last 1 release)

### 1.0 — 2026-06-18

No release notes.

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## More apps by Yuhsiu Lai

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All apps by Yuhsiu Lai: https://appshunter.io/developer/433114647

## Related topics

[substation short circuit](https://appshunter.io/ios/topics/substation-short-circuit) · [electrical systems pro suite](https://appshunter.io/ios/topics/electrical-systems-pro-suite)

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-09-06.*