Valve Explorer vs StructuraE
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Valve Explorer
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Valve Explorer is an educational reference for industrial and engineering valves. Learn valve types, applications, and terminology with quizzes and flashcards. Fully offline.
StructuraE
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Create spatial studies, arrange rooms, map circulation and review design choices. Learn through guided challenges, compare revisions and compose visual portfolios on your device.
Screenshots
Verdict
The clearest difference is update cadence: Valve Explorer at weekly against StructuraE's every 3 weeks. On price, ads, 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Valve Explorer ships an update weekly, StructuraE every 3 weeks. The most recent releases landed on September 20, 2026 and September 17, 2026 respectively.
| Parameter | Valve Explorer | StructuraE |
|---|---|---|
| Price | Free | Free |
| Update frequency | Weekly — better | Every 3 weeks |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 13.0 | 13.0 |
| Further details — not scored | ||
| Size | 57 MB | 28 MB |
| Age rating | 4+ | 4+ |
| Developer | Pham Van Thanh | Van Vinh Dinh |
In-app purchases
Valve Explorer
No in-app purchases
StructuraE
No in-app purchases
Questions
Is Valve Explorer free?
Is StructuraE free?
Do Valve Explorer or StructuraE have ads?
Which is updated more often, Valve Explorer or StructuraE?
Other comparisons
