Comparison

Underground Zoshock vs ISSEN 一閃

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

Head to head
About

Underground Zoshock

Engage in a strategic conquest by growing combatants and expanding your hideout. Strengthen your base with items and defend against invading heroes. The ultimate goal is world domination through rapid growth and strategic defense.

Highlights
  • Grow combatants rapidly
  • Increase hideout capacity
  • Strengthen hideout with items
  • Defend against heroes
  • Purchase hero-repelling items
Features
Read full description

The time of world conquest has come! My great progress starts from here! Engrave the knowledge of world conquest in my heart! Knowledge 1 ~Grow a combatant~ Combatants will increase rapidly over time! If you still can not wait, tap the emblem! Knowledge 2 ~Increase your hideout~ If you increase the hideouts, the pace at which combatants multiply will rise at once! Since the hiatus is initially locked, increase combatants and open up the hide! Knowledge 3 ~Strengthen the hideout with items~ You can purchase items to strengthen the hide in the shop! Complete all items! Knowledge 4 ~Kick a hero to disturb you~ Combatants will be destroyed if damn heroes come along! Tap the hero and beat it! In addition, heroes repelling items are sold at shops! The explanation is over! We pray for your consideration!

About

ISSEN 一閃

Features
Read full description

ISSEN(一閃)は、コンマ数秒の反応速度を競う早撃りオンライン対戦ゲームです。横向きで、左があなた・右が相手。 ■ ルール 「構え…」のあと、合図の「斬」が出た瞬間に画面をタップ。速い方が勝ち。合図より早く押すと“お手つき”で負け。2本先取で決着! ■ 友達と対戦(部屋番号) ・「部屋を作る」で4桁の部屋番号が発行されます。番号を友達に伝えるだけ。 ・友達は「部屋に入る」で番号を入力して参加。すぐに1対1がはじまります。 ■ ランク&ガチャ ・勝つとランクポイントが上がり、十級から段位へ昇格。 ・対戦やランクアップで「銭」が貯まり、課金アイテム「勾玉」とあわせてガチャを回せます。 ・ガチャから棒人間スキン(蒼・紅・翠・影・白浪・紫電・黄金・雷神…)を解放。重複は銭に還元。 基本無料(アプリ内に広告を表示)。反射神経で競う、シンプルで奥深い早撃りバトル。

Screenshots

Underground Zoshock4 screens
ISSEN 一閃4 screens

Verdict

The call

The clearest difference is in-app purchases: Underground Zoshock at none against ISSEN 一閃's 3. Underground Zoshock also leads on iOS requirement (11.0 vs 14.0). ISSEN 一閃's advantage is update cadence (every 2 days vs fortnightly). On price, ads 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. ISSEN 一閃 sells 3 one-off in-app purchases. Underground Zoshock asks for nothing beyond the download.

UpkeepUpdate frequency

Underground Zoshock ships an update fortnightly, ISSEN 一閃 every 2 days. Both last shipped on October 24, 2026.

Scorecard3 real differences · 7 level
Underground Zoshock versus ISSEN 一閃: the parameters behind the verdict, then further details
ParameterUnderground ZoshockISSEN 一閃
PriceFreeFree
Rating4.4 (10 ratings) — better—
Positive reviews33.3% of reviews—
Number of ratings10 — better—
Update frequencyFortnightlyEvery 2 days — better
AdsYesYes
In-app purchasesNo — betterYes
MonetizationAd-supported—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS11.0 — better14.0
Further details — not scored
Size50 MB20 MB
Age rating9+9+
Developermasayoshi onukiRAITO SASAGAWA

In-app purchases

None

Underground Zoshock

No in-app purchases

3 purchases

ISSEN 一閃

One-time3
  • 銭 5,000$0.99
  • 銭 30,000$5.99
  • 銭 70,000$11.99

Questions

Is Underground Zoshock free?
Underground Zoshock is free to download, with no in-app purchases.
Is ISSEN 一閃 free?
ISSEN 一閃 is free to download, with in-app purchases available.
Do Underground Zoshock or ISSEN 一閃 have ads?
Both Underground Zoshock and ISSEN 一閃 show ads.
Which is updated more often, Underground Zoshock or ISSEN 一閃?
Underground Zoshock ships an update fortnightly, and ISSEN 一閃 every 2 days. Most recently, Underground Zoshock was updated on October 24, 2026 and ISSEN 一閃 on October 24, 2026.

Other comparisons