Valve Explorer vs Star Loci
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.
Star Loci
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Star Loci is a private offline astronomy journal — file memory palaces, constellation kits, and planet cards, then find any locus before the quiz.
Screenshots
Verdict
The clearest difference is iOS requirement: Valve Explorer at 13.0 against Star Loci's 15.0. 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.
| Parameter | Valve Explorer | Star Loci |
|---|---|---|
| Price | Free | Free |
| Update frequency | Weekly | — |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 13.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 57 MB | 32 MB |
| Age rating | 4+ | 4+ |
| Developer | Pham Van Thanh | Lima Transit Navigator |
In-app purchases
Valve Explorer
No in-app purchases
Star Loci
No in-app purchases
Questions
Is Valve Explorer free?
Is Star Loci free?
Do Valve Explorer or Star Loci have ads?
Other comparisons
