Comparison

Flat vs PixelHeart

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 that combines minimalist design with profound logic. The rules are simple: move all the cubes on the board into the black holes to make the board completely flat. - 50 stages of intellectual challenges - As you progress through the stages, new mechanics such as arrow panels and switches will appear. - Comfortable controls - Intuitive swipe controls allow you to immerse yourself in the pleasure of solving puzzles. - Minimalist aesthetic - The stripped-back visuals help sharpen your focus. Why not clear your mind and aim to complete all the stages?

About

PixelHeart

Features
Read full description

フィールドを切り取って陣地を広げる、 QIX風の陣取りアクションゲームがスマホ向けに登場! 本作は、敵が動き回るステージでラインを引き、 安全に囲んだエリアを自分の陣地として獲得していく シンプルかつスリリングな陣取りゲームです。 ラインを引いている最中に敵に触れられるとミスになるため、 プレイヤーには 瞬時の判断力・ルート選択・リスク管理が求められます。 <特徴> ・QIXライクなクラシック陣取りゲームシステム ・スマホに最適化された直感的なタッチ操作 ・シンプル操作ながら奥深いゲーム性 ・短時間でも遊べるカジュアルアクション ・陣地を奪った時の爽快感と達成感 <ゲームの魅力> このゲームはアクションゲームの緊張感とパズル要素の戦略性を兼ね備えています。 どこまで攻めるか、いつ引き返すか、一瞬の判断がゲームの結果を大きく左右します。 プレイするたびに異なる展開が楽しめ、 何度でも挑戦したくなる中毒性があります。 <こんな方におすすめ> ・陣取りゲームが好き ・QIXやレトロアーケードゲームが好き ・シンプルだけど歯ごたえのあるゲームを探している ・スマホで遊べるアクションゲームを探している ・スキマ時間に集中して遊びたい シンプル操作 × 高い緊張感 懐かしくも新しい陣取り体験を、ぜひお楽しみください。 今すぐプレイして、 フィールドを制圧する快感を体感しよう!

Screenshots

Flat4 screens
PixelHeart4 screens

Verdict

The call

The clearest difference is update cadence: Flat at every 3 weeks against PixelHeart's every 2 months. PixelHeart's advantage is device support (3 vs 1) and iOS requirement (13.0 vs 18.0). On price, 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

CostPrice · In-app purchases · Ads · 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 3 weeks, PixelHeart every 2 months. The most recent releases landed on September 26, 2026 and September 11, 2026 respectively.

Scorecard3 real differences · 5 level
Flat versus PixelHeart: the parameters behind the verdict, then further details
ParameterFlatPixelHeart
PriceFreeFree
Positive reviews100.0% of reviews—
Update frequencyEvery 3 weeks — betterEvery 2 months
AdsYesYes
In-app purchasesNoNo
MonetizationAd-supported—
DevicesiPhoneiPhone, iPad, iPod — better
Requires iOS18.013.0 — better
Further details — not scored
Size113 MB281 MB
Age rating4+4+
Developermasanao matsuiYasutaka Moriguchi

In-app purchases

None

Flat

No in-app purchases

None

PixelHeart

No in-app purchases

Questions

Is Flat free?
Flat is free to download, with no in-app purchases.
Is PixelHeart free?
PixelHeart is free to download, with no in-app purchases.
Do Flat or PixelHeart have ads?
Both Flat and PixelHeart show ads.
Which is updated more often, Flat or PixelHeart?
Flat ships an update every 3 weeks, and PixelHeart every 2 months. Most recently, Flat was updated on September 26, 2026 and PixelHeart on September 11, 2026.

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