Comparison

Gate of Hell vs Parallel Earth

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

Head to head
About

Gate of Hell

Features
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This game offers a thrilling experience as you engage in a relentless battle against countless enemies, utilizing a variety of weapons such as guns, missiles, drones, and beams to overcome them. One day, a hole opened up in the ground. The gaping hole emitted an eerie, pale blue light, with no visible bottom. Soon, monsters emerged from the hole. You climbed into a combat vehicle and fought to prevent the monsters from escaping the walls. Mission: - Prevent the monsters from escaping the walls. - Upgrade and enhance the weapons of the combat vehicle. Weapons: - Machine gun - Missile - Beam - Close-range attack drone - Electric shock attack drone Effects: - Increase vehicle speed - Expand the range for coin and experience absorption - Boost durability Special: - Coin acquisition - Wall durability restoration The battle to keep the monsters contained within the walls begins, all for the sake of humanity.

About

Parallel Earth

Features
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Parallel Earth (平蔌地球) is a fast-paced 2D horizontal shooter featuring stunning parallax space backgrounds, 3 unique pilots, and 6 intense acts of increasing challenge. FEATURES: • 3 distinct pilots with unique abilities • 6 acts with powerful boss battles • EXCEED system for unleashing ultimate attacks • Energy-based gameplay with rewarded ad refills • Japanese voice acting and immersive BGM • Stunning parallax space environments Choose your pilot, master the EXCEED system, and defend the Parallel Earth from alien invaders!

Screenshots

Gate of Hell4 screens
Parallel Earth4 screens

Verdict

The call

The clearest difference is update cadence: Gate of Hell at every 2 days against Parallel Earth's every 3 months. Gate of Hell also leads on iOS requirement (15.0 vs 17.0). On price, ads, in-app purchases and device support 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

Gate of Hell ships an update every 2 days, Parallel Earth every 3 months. The most recent releases landed on October 24, 2026 and October 19, 2026 respectively.

Scorecard2 real differences Ā· 4 level
Gate of Hell versus Parallel Earth: the parameters behind the verdict, then further details
ParameterGate of HellParallel Earth
PriceFreeFree
Update frequencyEvery 2 days — betterEvery 3 months
AdsYesYes
In-app purchasesNoNo
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.0 — better17.0
Further details — not scored
Size212 MB185 MB
Age rating9+12+
DeveloperJun HottaSui Fai Law

In-app purchases

None

Gate of Hell

No in-app purchases

None

Parallel Earth

No in-app purchases

Questions

Is Gate of Hell free?
Gate of Hell is free to download, with no in-app purchases.
Is Parallel Earth free?
Parallel Earth is free to download, with no in-app purchases.
Do Gate of Hell or Parallel Earth have ads?
Both Gate of Hell and Parallel Earth show ads.
Which is updated more often, Gate of Hell or Parallel Earth?
Gate of Hell ships an update every 2 days, and Parallel Earth every 3 months. Most recently, Gate of Hell was updated on October 24, 2026 and Parallel Earth on October 19, 2026.

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