Comparison

ISUD Zero vs Starshard

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

Head to head
About

ISUD Zero

Features
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Dodge readable bullet patterns, graze for Phase Pulse, and chase clean weekly scores against the Pattern Engine. Description: I.S.U.D. Zero is a portrait bullet-hell boss rush built around clean reads, a tiny fair hitbox, and fast retry mastery. Enter the simulation chamber, learn each boss pattern, graze close calls to charge Phase Pulse, and chase cleaner clears across The Instructor, Mirror Cadet, Twin Array, and The Cartographer. Every run is short, sharp, and score-driven. Bosses move, mutate, and escalate through multiple phases. The ship only takes damage at the red core, so the chaos stays readable even when the screen blooms with bullets. Features: - Precision drag controls for portrait play - Fair red-core hitbox with optional callout - Graze scoring and Phase Pulse screen clears - Four multi-phase bosses with distinct patterns and visual escalation - Five additional boss slots marked Coming Soon - Difficulty options, persistent best scores, and ranks - Game Center weekly and all-time high score leaderboards - Neon arcade presentation with original audio hooks

About

Starshard

Features
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Three fleets came out of the dark and took the lanes one by one. Command has one hull left to send โ€” yours. Starshard is a vertical space shooter built on one promise: FAIR PLAY. No pay-to-win. No energy timers. Just you, your ship, and endless waves of alien fleets โ€” now fully playable in English and Turkish. DODGE. BLAST. SURVIVE. Weave through bullet storms with one finger. Collect power-ups, charge your weapons, and carve through six enemy types โ€” from swarming scouts to armor-plated frigates โ€” plus elite gold variants that hit harder and fly faster. DRAFT YOUR BUILD, EVERY RUN Defeat a boss and choose 1 of 3 upgrades: side cannons, homing missiles, piercing lasers, combat drones, tail guns, flak rounds and more. Every run builds differently. Every choice matters. EPIC BOSS BATTLES Three alien dreadnought factions guard the void, each with its own attack patterns โ€” bullet curtains, radial bursts, summoned reinforcements. Push them past half health and face their enraged second phase. BUILD YOUR HANGAR Earn shards and unlock permanent gear: escort wingmen, drone bays, shield generators, afterburners. Choose your ship โ€” the balanced Interceptor, the nimble Falcon, or the heavy Titan โ€” and equip a loadout that fits your style. CAMPAIGN + ENDLESS Clear campaign missions with hand-crafted enemy compositions, or chase your record in endless mode across deep space, planetary sectors, and asteroid fields. Climb the pilot ranks from Cadet to legend. FAIR MONETIZATION โ€ข No pay-to-win, no energy timers, no subscriptions โ€ข Optional rewarded ads for a revive or bonus crystals; a short ad between runs, never mid-fight โ€ข One purchase removes all ads, forever โ€ข Everything is earnable by playing The void is waiting, pilot. How far will you fly?

Screenshots

ISUD Zero4 screens
Starshard4 screens

Verdict

The call

The clearest difference is in-app purchases: ISUD Zero at none against Starshard's 2. ISUD Zero also leads on ads (none vs shown). On price, device support and iOS requirement there is nothing between them.

Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS

CostPrice ยท In-app purchases ยท Ads ยท Monetization

Both are free to download. Starshard sells 2 one-off in-app purchases. ISUD Zero asks for nothing beyond the download.

Scorecard2 real differences ยท 4 level
ISUD Zero versus Starshard: the parameters behind the verdict, then further details
ParameterISUD ZeroStarshard
PriceFreeFree
Update frequencyโ€”Every 3 weeks
AdsNo โ€” betterYes
In-app purchasesNo โ€” betterYes
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.015.0
Further details โ€” not scored
Size119 MB85 MB
Age rating12+9+
DeveloperSuwitcha SugthanaBurak Emre Nevruzoglu

In-app purchases

None

ISUD Zero

No in-app purchases

2 purchases

Starshard

One-time2
  • Shard Doubler$1.99
  • Remove Ads$2.99

Questions

Is ISUD Zero free?
ISUD Zero is free to download, with no in-app purchases.
Is Starshard free?
Starshard is free to download, with in-app purchases available.
Do ISUD Zero or Starshard have ads?
Starshard shows ads; ISUD Zero does not.

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