Valve Explorer vs Easy Flag Quiz
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.
Easy Flag Quiz
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Easy Flag Quiz challenges you to name the country behind 242 flags from around the world, one quick round at a time. Add a profile for everyone who plays, then check the shared scoreboard for games played, average score and personal bests. Simple, fast, and works without an internet connection.
Screenshots
Verdict
The clearest difference is iOS requirement: Valve Explorer at 13.0 against Easy Flag Quiz's 15.6. On price, update cadence, ads and in-app purchases 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, Easy Flag Quiz every 4 days. The most recent releases landed on October 24, 2026 and October 13, 2026 respectively.
| Parameter | Valve Explorer | Easy Flag Quiz |
|---|---|---|
| Price | Free | Free |
| Update frequency | Weekly | Every 4 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 13.0 — better | 15.6 |
| Further details — not scored | ||
| Size | 57 MB | 53 MB |
| Age rating | 4+ | 4+ |
| Developer | Pham Van Thanh | MARK JOSEPH APUYAN SARMIENTO |
In-app purchases
Valve Explorer
No in-app purchases
Easy Flag Quiz
No in-app purchases
Questions
Is Valve Explorer free?
Is Easy Flag Quiz free?
Do Valve Explorer or Easy Flag Quiz have ads?
Which is updated more often, Valve Explorer or Easy Flag Quiz?
Other comparisons
