Comparison

.Decluster Zero vs Sudoku Zen

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

Head to head
About

.Decluster Zero

Experience a Japanese-style bullet-hell shooter with retro graphics and modern gameplay. Utilize a unique bullet-canceling system and homing lasers to overcome intense enemy barrages. Features include multiple levels, challenging boss battles, and adjustable difficulty.

Highlights
  • Japanese style bullet-hell shooter
  • Bullet-Canceling system
  • Homing laser mechanic
  • 5+ levels with boss battles
  • 4 difficulty levels
  • Optimized mobile controls
  • Replay video integration
Features
Read full description

'.Decluster Zero (dot decluster zero)' is a Japanese style bullet-hell shooter with abstract and pixelated neo-retro graphics. The game offers modern-classic bullet-hell gameplay and traditional Japanese beautiful bullet patterns. You'll get new bullet-hell experiences which are brought by Bullet-Canceling system. In the game, you'll encounter tons of bullets which are insane. It is impossible to keep dodging, but you can erase the bullets easily. A main mechanic is 'homing laser' with CANCELING enemy bullets around your ship. It requires gauge, but easy to fill. You should use the homing laser aggressively and it is the best way to defeat enemies. Moreover, there is a mechanic which slows down bullets around your ship in order to dodge them easily. Are you interested in this game? You can watch user's replay videos on Everyplay: https://everyplay.com/-decluster/videos You can also watch them in this app. Tap 'EVERYPLAY' button on the title screen. (The lite version also.) -- .Decluster Zero is a remix version of bullet-hell shooter '.Decluster: Into The Bullet Hell'. With many remixes and new features: remixed soundtracks, modified mechanics, redesigned levels, and more. #1 SOUND - Remixed all soundtracks + new soundtrack #2 MECHANICS - Expanded homing laser system - Touch and hold a second finger... - Bullets around the player are slowed down (Capture Mode) - New scoring system (Homing laser basics are the same as before: requires meter and cancels bullets.) #3 LEVEL DESIGN - Redesign for new mechanics plus new scenes - Modify/add bullet patterns and enemies #4 PLAYER SHIP - Full-power from beginning - Change basic weapon anytime - Three level stock homing laser gauge - Charge the meter by itself (Charge Mode) #5 GRAPHICS - Improve visibility - Improve graphics quality -- FEATURES: - Japanese style bullet-hell shooter - Terrific bullet hell experience - 5 various levels + 1 - Beautiful bullet patterns - Boss battles which take your breath away - 4 levels of difficulty that actually make a difference - Soundtracks to make you high - Optimized controls for mobile - Restart from any level you reached - Adjustable gameplay area - Various settings - Replay video through Everyplay - Game Center support - Leaderboard/Achievement - Leaderboard for each difficulty/level - Universal app for iPhone/iPad/Apple TV - MFi controller support Trailer: https://www.youtube.com/watch?v=QZI665o_pMs SoundCloud: https://soundcloud.com/dot_decluster Twitter: https://twitter.com/dot_decluster

About

Sudoku Zen

Features
Read full description

Sudoku Zen is a clean, relaxing Sudoku (number place) game with an endless supply of puzzles. Every board is generated by an algorithm on your device and guaranteed to have exactly one solution — so you never run out and never need an internet connection. Features: - Endless puzzles across four difficulties: Easy, Medium, Hard and Expert - Every puzzle is guaranteed to have a unique solution - Mistake detection with a 3-strike limit, just like the classics - Pencil notes, smart highlighting and auto-clean notes - Hints when you get stuck - Time tracking with best times, win rate and streaks per difficulty - Auto-save: pause anytime and continue later - Light & dark themes, English & Japanese - Fully offline — no account, no sign-in Relax, focus, and solve. Perfect for a quick break or a long, satisfying session.

Screenshots

.Decluster Zero4 screens
Sudoku Zen4 screens

Verdict

The call

The clearest difference is price: Sudoku Zen at Free against .Decluster Zero's $4.99. Sudoku Zen also leads on update cadence (every 3 weeks vs every 2 months). .Decluster Zero's advantage is device support (4 vs 1) and iOS requirement (12.0 vs 17.0). On 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

Sudoku Zen is free to download; .Decluster Zero costs $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

.Decluster Zero ships an update every 2 months, Sudoku Zen every 3 weeks. The most recent releases landed on October 22, 2026 and October 15, 2026 respectively.

Scorecard4 real differences · 6 level
.Decluster Zero versus Sudoku Zen: the parameters behind the verdict, then further details
Parameter.Decluster ZeroSudoku Zen
Price$4.99Free — better
Rating4.8 (16 ratings) — better—
Positive reviews94.3% of reviews—
Number of ratings16 — better—
Update frequencyEvery 2 monthsEvery 3 weeks — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaid—
DevicesiPhone, iPad, iPod, Apple TV — betteriPhone
Requires iOS12.0 — better17.0
Further details — not scored
Size54 MB21 MB
Age rating9+4+
DeveloperMASAYUKI ITOYuki Okawa

In-app purchases

None

.Decluster Zero

No in-app purchases

None

Sudoku Zen

No in-app purchases

Questions

Is .Decluster Zero free?
.Decluster Zero costs $4.99, with no in-app purchases.
Is Sudoku Zen free?
Sudoku Zen is free to download, with no in-app purchases.
Do .Decluster Zero or Sudoku Zen have ads?
Neither .Decluster Zero nor Sudoku Zen shows ads.
Which is updated more often, .Decluster Zero or Sudoku Zen?
.Decluster Zero ships an update every 2 months, and Sudoku Zen every 3 weeks. Most recently, .Decluster Zero was updated on October 22, 2026 and Sudoku Zen on October 15, 2026.

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