Comparison

Flat vs Circle Master

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

Head to head
About

Flat

A minimalist 3D puzzle game where players move cubes into black holes to flatten the board. It offers 50 stages with increasing complexity and intuitive swipe controls for an immersive experience.

Highlights
  • 3D puzzle gameplay
  • Minimalist design
  • 50 challenging stages
  • Intuitive swipe controls
  • Progressive mechanics
Features
Read full description

Flat is a 3D puzzle game where you slide cubes to make the board flat. ā–  How to Play Swipe to slide the cubes into the holes on the board. Fill every hole to make the board flat and clear the stage. ā–  50 Stages As you progress, new gimmicks appear: one-way tiles, switches, breakable cubes, splitting tiles and more. ā–  Daily Stage A new stage is added every day. You can also play past days from the calendar. ā–  Show Answer If you get stuck, the solution plays automatically so you can see how to solve it. ā–  Share When you clear a daily stage, you can share an image of the board and your move count.

About

Circle Master

Features
Read full description

Draw a perfect circle with one finger. Sounds easy — it isn't. Circle Master gives you one dot and one rule: draw a full circle around it in a single, unbroken stroke. Wobble, cut the corner or stop halfway, and your score drops. Nail it, and you get the number every player is chasing: 100%. HOW TO PLAY • Put your finger on the screen and circle the dot • Keep a steady pace — too slow and the attempt doesn't count • Don't stop, don't reverse, don't drift toward the center • Release, and see your accuracy as a percentage WHY IT'S ADDICTIVE One attempt takes three seconds. And you are always one percent away from your own record. "Just one more try" never means one more try. FEATURES • Instant scoring — accuracy in percent after every stroke • Global leaderboard — pick a nickname and climb the world ranking • 20+ achievements, from your first full circle to tricks you won't see coming • Hints and a sample circle whenever you need a reference • Clean, minimal design — nothing between you and the line • One-handed play, anywhere, in any spare minute • Five languages: English, Russian, Spanish, Dutch and Japanese Perfect for a break, a waiting room, or a bet with a friend over who has the steadier hand. How round can you go? Download Circle Master and find out.

Screenshots

Flat4 screens
Circle Master3 screens

Verdict

The call

The clearest difference is update cadence: Circle Master at daily against Flat's every 5 weeks. Circle Master also leads on device support (3 vs 1) and iOS requirement (15.0 vs 18.0). On price, ads and in-app purchases there is nothing between them.

Scored on Price Ā· Rating Ā· Positive reviews Ā· Number of ratings Ā· Update frequency Ā· Ads Ā· In-app purchases Ā· Monetization Ā· Best chart rank Ā· Devices Ā· Requires iOS

CostPrice Ā· In-app purchases Ā· Ads Ā· Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Flat ships an update every 5 weeks, Circle Master daily. The most recent releases landed on October 12, 2026 and October 10, 2026 respectively.

Scorecard3 real differences Ā· 5 level
Flat versus Circle Master: the parameters behind the verdict, then further details
ParameterFlatCircle Master
PriceFreeFree
Positive reviews100.0% of reviews—
Update frequencyEvery 5 weeksDaily — better
AdsYesYes
In-app purchasesNoNo
MonetizationAd-supported—
DevicesiPhoneiPhone, iPad, iPod — better
Requires iOS18.015.0 — better
Further details — not scored
Size103 MB124 MB
Age rating4+4+
Developermasanao matsuiAliaksei Smaliuk

In-app purchases

None

Flat

No in-app purchases

None

Circle Master

No in-app purchases

Questions

Is Flat free?
Flat is free to download, with no in-app purchases.
Is Circle Master free?
Circle Master is free to download, with no in-app purchases.
Do Flat or Circle Master have ads?
Both Flat and Circle Master show ads.
Which is updated more often, Flat or Circle Master?
Flat ships an update every 5 weeks, and Circle Master daily. Most recently, Flat was updated on October 12, 2026 and Circle Master on October 10, 2026.

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