Comparison

CosmoCleaner vs Explosion! ROBOBOM

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

Head to head
About

CosmoCleaner

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The orbit is drowning in trash, and you are part of the last janitor fleet that can still save it. Pilot your cleaning ship through eight dangerous orbits, collect space debris, and clear the way for the future. Between asteroids, active satellites, mines, and cosmic storms, every maneuver counts. Your mission: • Clear diverse orbits across the solar system • Collect debris and remove dangerous space junk • Dodge asteroids, satellites, mines, and cosmic hazards • Use your shield, magnet, boost, and laser at the right moment • Expand your fleet with extraordinary cleaning ships • Earn your flight license and prove your skills • Unlock achievements and compete via Game Center • Discover in the CC Academy why space debris is a real threat MORE THAN JUST A SPACE GAME A single tiny piece of debris can destroy a satellite and create more dangerous fragments. This can trigger a chain reaction that threatens satellites, communications, and future space missions. Cosmo Cleaner combines accessible arcade gameplay with a mission inspired by a real challenge facing our future. Not every hero wears a spacesuit. Often, they are the quiet heroes of everyday life: janitors who show up day after day and keep everything running. In Cosmo Cleaner, they become the saviors of orbit. Your shift begins. Clean the orbit. Protect the future.

About

Explosion! ROBOBOM

Blast away enemies in this explosive action game. Tap to move and unleash powerful attacks, charge up for even bigger blasts, and aim for a high score. Unlock upgrades to become stronger and defeat the boss.

Highlights
  • Tap to move and attack
  • Chargeable powerful blasts
  • Fever Time for max damage
  • Unlockable upgrades
  • High score challenges
  • Boss battles
Features
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This app is a game created by new graduates of NHN PlayArt during training held from April to August 2026. ーーーーーーーーーーーーーーーーーーーーーーーーーーーーーーーーーーーーーーーーーーーーーーーーーーーーー The explosive action game "Explosion! ROBOBOM" is here! Blow off some steam — literally. ◆ TAKE DOWN THE BAD GUYS ◆ Your beat: outer space. Team up with Robobon of the Space Police and blast the Bad Guys who are digging up stolen Space Fragments! ◆ EASY TO PLAY ◆ Wipe out as many Bad Guys as you can before Robobom runs out of energy, and go for a high score! Just tap where you want to move to unleash an explosive attack! Press and hold to charge up an even more powerful blast! During Fever Time, every hit lands for max damage! Tap like crazy for your shot at a high score! ◆ TONS TO UNLOCK ◆ Use the rewards from completed missions and the Space Fragments you take back from the Bad Guys to grow stronger and stronger! Strong enough to take down their boss...!?

Screenshots

CosmoCleaner2 screens
Explosion! ROBOBOM4 screens

Verdict

The call

The clearest difference is in-app purchases: Explosion! ROBOBOM at none against CosmoCleaner's 7. Explosion! ROBOBOM also leads on update cadence (every 2 days vs every 5 days) and device support (3 vs 1). On price and ads 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. CosmoCleaner sells 7 one-off in-app purchases. Explosion! ROBOBOM asks for nothing beyond the download.

UpkeepUpdate frequency

CosmoCleaner ships an update every 5 days, Explosion! ROBOBOM every 2 days. The most recent releases landed on October 31, 2026 and October 10, 2026 respectively.

Scorecard4 real differences · 6 level
CosmoCleaner versus Explosion! ROBOBOM: the parameters behind the verdict, then further details
ParameterCosmoCleanerExplosion! ROBOBOM
PriceFreeFree
Rating—5.0 (1 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings—1 — better
Update frequencyEvery 5 daysEvery 2 days — better
AdsYesYes
In-app purchasesYesNo — better
Monetization—Ad-supported
DevicesiPhoneiPhone, iPad, iPod — better
Requires iOS26.115.0 — better
Further details — not scored
Size386 MB329 MB
Age rating9+9+
DeveloperMaikel StiefelNHN PlayArt 株式会社

In-app purchases

7 purchases

CosmoCleaner

One-time7
  • 500 Credits$0.99
  • 1,200 Credits$1.99
  • Ad-Free + Cleanup Ship$3.99
Show 4 more
  • 2,800 Credits$3.99
  • 6,000 Credits$6.99
  • 15,000 Credits$12.99
  • 40,000 Credits$24.99
None

Explosion! ROBOBOM

No in-app purchases

Questions

Is CosmoCleaner free?
CosmoCleaner is free to download, with in-app purchases available.
Is Explosion! ROBOBOM free?
Explosion! ROBOBOM is free to download, with no in-app purchases.
Do CosmoCleaner or Explosion! ROBOBOM have ads?
Both CosmoCleaner and Explosion! ROBOBOM show ads.
Which is updated more often, CosmoCleaner or Explosion! ROBOBOM?
CosmoCleaner ships an update every 5 days, and Explosion! ROBOBOM every 2 days. Most recently, CosmoCleaner was updated on October 31, 2026 and Explosion! ROBOBOM on October 10, 2026.

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