Comparison

プロセス・ディフェンス vs SPHERE

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

Head to head
About

プロセス・ディフェンス

Features
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タワーディフェンス×パズルの新感覚ゲーム! 【分岐】や【ループ】を駆使して、モンスターの侵入を防げ! 全ての流れてくる数字を、自機であるハートに辿り着くまでに0以下にすることができるばゲームクリア! 「数字を3減らす」ユニットや、「数字を5で割る」ユニットなど、 計25種類もある豊富な演算ユニットを駆使して、ゲームクリアを目指そう! 収録ステージは全40ステージ! サクッと解けるお手軽なステージから、じっくり考えるような骨のあるステージまで幅広く用意されているぞ! こんな人にオススメ ・パズルゲームが好きな人 ・プログラミングが好きな人 ・ものが流れてくるの(交通・ベルトコンベア)を眺めるのが好きな人 ・約数や素数などの概念をゲームを通じて勉強したい人

About

SPHERE

Features
Read full description

- Worldview - The Sphere (Earth) is now facing the threat of annihilation by invaders. Humanity has been forced from their homes and has begun developing new weapons in underground facilities. As countless lives and resources are lost, humans have finally succeeded in developing a new weapon capable of opposing the invaders. Now, having endured years of agony, it is time to advance toward the hope of liberating the Sphere! Humanity is now launching a counteroffensive! - Game Overview - This is a simple placement-style tower defense game where you place units to defeat incoming enemies! As you defeat enemies, your resources increase, allowing you to place new units or upgrade existing ones! - Game Difficulty - Difficulty levels are EASY, NORMAL, and HARD! This game is suitable for tower defense beginners to advanced players, offering a challenging gameplay experience for everyone! There are 10 refined stages for each difficulty level, with each stage lasting about 5 to 15 minutes! Enjoyable even during a short break! Whether you are new to tower defense or a master, this game is for you! - Unit Types - Players can use the following seven types of units: [Attack Units] Each unit excels in different situations, so place them appropriately according to the battlefield conditions! Standard Attack Turret: A unit with a short attack interval, specializing in defeating enemies one by one. Area Attack Turret: A unit that excels in attacking multiple enemies with explosive blasts. Piercing Attack Turret: A unit that excels in attacking enemies lined up in a straight line. [Support Units] These units enhance the advantages of friendly units, so place them without hesitation when you have extra resources! Cooling Turret: A unit that slows down the speed of enemies. Incendiary Turret: A unit that increases the attack power of attack units. [Support Attack Units] Use these units to weaken enemies before friendly units attack or as an emergency response to prevent enemy breakthroughs! Fixed-Point Attack Unit: Provides pinpoint missile support attacks at specific locations. Linear Attack Unit: Conducts satellite laser bombardment at designated linear locations.

Screenshots

プロセス・ディフェンス3 screens
SPHERE4 screens

Verdict

The call

The clearest difference is update cadence: プロセス・ディフェンス at weekly against SPHERE's every 4 months. 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

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

プロセス・ディフェンス ships an update weekly, SPHERE every 4 months. The most recent releases landed on October 27, 2026 and October 25, 2026 respectively.

Scorecard1 real difference · 5 level
プロセス・ディフェンス versus SPHERE: the parameters behind the verdict, then further details
Parameterプロセス・ディフェンスSPHERE
PriceFreeFree
Update frequencyWeekly — betterEvery 4 months
AdsYesYes
In-app purchasesNoNo
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS12.0 — better13.0
Further details — not scored
Size81 MB154 MB
Age rating4+4+
DeveloperChikai ItoTomoki Fukushima

In-app purchases

None

プロセス・ディフェンス

No in-app purchases

None

SPHERE

No in-app purchases

Questions

Is プロセス・ディフェンス free?
プロセス・ディフェンス is free to download, with no in-app purchases.
Is SPHERE free?
SPHERE is free to download, with no in-app purchases.
Do プロセス・ディフェンス or SPHERE have ads?
Both プロセス・ディフェンス and SPHERE show ads.
Which is updated more often, プロセス・ディフェンス or SPHERE?
プロセス・ディフェンス ships an update weekly, and SPHERE every 4 months. Most recently, プロセス・ディフェンス was updated on October 27, 2026 and SPHERE on October 25, 2026.

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