Comparison

Hydro Dip vs Flag Quiz

Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.

Head to head
About

Hydro Dip

Features
Read full description

Enter the world of Hydro Dip, a game that brings the art of drawing on water to life! Get ready to fulfill a variety of customer orders by creating sketches on water and skillfully transferring them to various objects. Unleash your artistic talents! Will you be able to meet the expectations of each client and become a Hydro Dip master? Download now and try it!

About

Flag Quiz

Learn and memorize flags from all 196 countries with interactive quizzes and study tools. Master geography through flashcards, a searchable atlas, and progress tracking. Daily reminders help build a consistent learning habit.

Highlights
  • Learn 196 country flags
  • Four game modes
  • Region-specific flashcards
  • Searchable world atlas
  • Mastery heatmap and progress tracking
  • Daily learning reminders
Features
Read full description

Learn the flag of every country in the world — and finally remember them. Flag Quiz turns 196 nations into fast, addictive multiple-choice rounds that train your eye until you can name any flag on sight. Most flag apps just flash pictures at you. Flag Quiz pairs quiz rounds with real study tools: flip flashcards region by region, browse a searchable atlas of every nation and capital, then test yourself and watch a mastery heatmap fill in. It's a full loop — study, play, and see exactly which flags you've conquered. WHAT YOU GET - Name any flag in the world across all 7 regions and 196 countries - Four game modes: Classic flag ID, Flag Hunt, Capitals match, and a timed 12-second challenge - Region flashcards that reveal the country, capital, and a quick fact - A searchable atlas — look up any nation or capital in seconds - A mastery heatmap plus streaks, levels, and XP that show your progress - Daily reminders so a two-minute round becomes a habit PERFECT FOR - Students prepping for a geography test - Travelers who want to know the world better - Trivia and pub-quiz competitors sharpening their edge - Anyone who simply loves flags and world geography WHY NOT JUST GUESS FROM A LIST? Recognition beats recall. Look-alikes like Chad and Romania or Niger and India only stick when you're forced to choose under pressure — and repeated quiz rounds with a heatmap tell you precisely which flags still trip you up, so you study smart instead of starting over. PRIVACY Everything runs on your device. No accounts, no ads, no tracking. FULL ACCESS Flag Quiz is free to play Classic mode with the Europe and Asia regions. Unlock everything with Flag Quiz Pro: all 7 regions and the full 196-flag mix, Timed, Flag Hunt, and Capitals modes, and every flashcard deck. Pro is available as a weekly or yearly subscription, or a one-time lifetime purchase. Subscriptions renew automatically unless canceled at least 24 hours before the period ends; manage or cancel anytime in your App Store account settings. Pick a region and start your first round today. Terms of Use (EULA): https://web-levi.web.app/terms Privacy Policy: https://web-levi.web.app/privacy-policy Questions? tphuc.work@gmail.com

Screenshots

Hydro Dip4 screens
Flag Quiz4 screens

Verdict

The call

The clearest difference is in-app purchases: Hydro Dip at none against Flag Quiz's 3. Hydro Dip also leads on device support (3 vs 1) and iOS requirement (12.0 vs 17.0). Flag Quiz's advantage is ads (none vs shown). On price and update cadence 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Flag Quiz sells 3 in-app purchases, starting at $2.99 per 7 days. Hydro Dip asks for nothing beyond the download.

UpkeepUpdate frequency

Hydro Dip ships an update every 2 months, Flag Quiz monthly. The most recent releases landed on October 2, 2026 and October 12, 2026 respectively.

Scorecard4 real differences · 6 level
Hydro Dip versus Flag Quiz: the parameters behind the verdict, then further details
ParameterHydro DipFlag Quiz
PriceFreeFree
Rating—1.0 (1 ratings) — better
Positive reviews—0.0% of reviews
Number of ratings—1 — better
Update frequencyEvery 2 monthsMonthly — better
AdsYesNo — better
In-app purchasesNo — betterYes
Monetization—Free with in-app purchases
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS12.0 — better17.0
Further details — not scored
Size91 MB9 MB
Age rating9+4+
DeveloperMaksym KiryanovPhuc Pham

In-app purchases

None

Hydro Dip

No in-app purchases

3 purchases

Flag Quiz

Subscriptions2
  • Capitals Mode · Weekly$2.997 Days
  • Full Atlas Access · Yearly$14.991 Year
One-time1
  • All Continents · Pay Once$29.99

Questions

Is Hydro Dip free?
Hydro Dip is free to download, with no in-app purchases.
Is Flag Quiz free?
Flag Quiz is free to download, with in-app purchases available.
Do Hydro Dip or Flag Quiz have ads?
Hydro Dip shows ads; Flag Quiz does not.
Which is updated more often, Hydro Dip or Flag Quiz?
Hydro Dip ships an update every 2 months, and Flag Quiz monthly. Most recently, Hydro Dip was updated on October 2, 2026 and Flag Quiz on October 12, 2026.

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