Comparison

Heck Deck vs Kaiju Attack 2

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

Head to head
About

Heck Deck

Experience a unique blend of bullet hell action and strategic card gameplay. Navigate through five distinct stages, each with its own challenges, enemies, and bosses. Collect and strategically use dozens of cards, managing your health as you progress through this hand-drawn world.

Highlights
  • Bullet hell card gameplay
  • 5 unique stages with distinct music and enemies
  • Dozens of attack and spell cards
  • Card purchase system
  • Hand-drawn art style
  • Over 30 enemies and bosses
Features
Read full description

Heck Deck is a bullet hell card game where all the bullets are cards and time only progresses as you move. Explore 5 stages full of unique enemies and bosses, discover dozens of cards, and visit shops to buy and sell cards for health! Throughout 5 different stages, Heck Deck will challenge your precision and dexterity during the bullet hell phases and your strategy when using your cards. Each card you pick up will cost you at least one life point, so you will have to be careful about which ones you pick on your way. The abstract and minimalist world of Heck Deck is created with a cute hand-drawn art style. Each level of the game has its own universe, its own music, its own set of enemies, and of course, its own boss. Heck Deck main features: • 5 different levels with their own music • A cute hand-drawn art style • One unique setting for each level • Dozens of attacks and spells for the player • Over 30 enemies and bosses • A card purchase system via the shop The strategy created by the use of cards mixed with the dexterity required during the bullet hell phases makes Heck Deck truly unique!

About

Kaiju Attack 2

Lead Earth's defense against a renewed alien invasion. Command powerful secret weapons and face intelligent alien bosses in this intense sequel. Your strategic decisions will determine humanity's fate.

Highlights
  • Faster-paced gameplay
  • New currency tiles
  • Deploy multiple secret weapons
  • Nine new alien bosses
  • Eight new secret weapons
  • Super robots with splitting/combining abilities
Features
Read full description

To wash away the shame of defeat two years ago, Chaos has gathered an alien coalition, attacking Earth once more, citing humanity's sins as justification. Even the once-defending superhero now turns against us. As the commander, how will you resolve this crisis? What lies ahead for humanity and Earth? Game Intro Kaiju Attack 2, the sequel to our critically acclaimed title released two years ago, builds upon the strengths of the first installment while addressing its shortcomings. We've introduced numerous new features and enhancements, including: - Faster-paced and more intense gameplay. - Introduction of currency tiles alongside the existing three types. - Ability to deploy multiple types of secret weapons simultaneously. - Nine new alien bosses with smarter, more cunning behavior AI for increased challenge. - Eight new secret weapons, including super robots capable of splitting into three separate units and combining.

Screenshots

Heck Deck4 screens
Kaiju Attack 24 screens

Verdict

The call

The clearest difference is ads: Kaiju Attack 2 at none against Heck Deck's shown. Kaiju Attack 2 also leads on monetization model (free vs ad-supported). Heck Deck's advantage is update cadence (weekly vs every 13 months) and rating (4.7 vs 4.5). On price, review sentiment, ratings volume 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

Heck Deck costs $2.99 and Kaiju Attack 2 $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Heck Deck holds the better App Store score, 4.7 against 4.5. Both are backed by a comparable volume of ratings — 129 and 56 respectively. Written reviews complicate that: 74% of Heck Deck's written reviews are positive against 76% of Kaiju Attack 2's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

Heck Deck ships an update weekly, Kaiju Attack 2 every 13 months. The most recent releases landed on September 30, 2026 and September 19, 2026 respectively.

Scorecard5 real differences · 5 level
Heck Deck versus Kaiju Attack 2: the parameters behind the verdict, then further details
ParameterHeck DeckKaiju Attack 2
Price$2.99$2.99
Rating4.7 (129 ratings) — better4.5 (56 ratings)
Positive reviews73.7% of reviews76.5% of reviews — better
Number of ratings129 — better56
Update frequencyWeekly — betterEvery 13 months
AdsYesNo — better
In-app purchasesNoNo
MonetizationAd-supportedFree — better
DevicesiPhone, iPad, iPod, Mac — betteriPhone, iPad, iPod
Requires iOS11 — better13.0
Further details — not scored
Size83 MB154 MB
Age rating4+4+
DeveloperPlug In DigitalGUAN LING WU

Customer experience

Heck Deck

All ratings129 ratings
Positive93.8%
Neutral1.6%
Negative4.7%
Written reviews19 reviews
Positive73.7%
Neutral0.0%
Negative26.3%

Kaiju Attack 2

All ratings56 ratings
Positive85.7%
Neutral8.9%
Negative5.4%
Written reviews34 reviews
Positive76.5%
Neutral14.7%
Negative8.8%

In-app purchases

None

Heck Deck

No in-app purchases

None

Kaiju Attack 2

No in-app purchases

Questions

Is Heck Deck free?
Heck Deck costs $2.99, with no in-app purchases.
Is Kaiju Attack 2 free?
Kaiju Attack 2 costs $2.99, with no in-app purchases.
Which has better reviews, Heck Deck or Kaiju Attack 2?
Heck Deck is rated higher. Heck Deck averages 4.7 out of 5 from 129 ratings, while Kaiju Attack 2 averages 4.5 from 56 ratings.
Do Heck Deck or Kaiju Attack 2 have ads?
Heck Deck shows ads; Kaiju Attack 2 does not.
Which is updated more often, Heck Deck or Kaiju Attack 2?
Heck Deck ships an update weekly, and Kaiju Attack 2 every 13 months. Most recently, Heck Deck was updated on September 30, 2026 and Kaiju Attack 2 on September 19, 2026.

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