Comparison

Celestial Assault vs Universe Invader 2

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

Head to head
About

Celestial Assault

Engage in a retro-style side-scrolling space shooter with RPG elements. Upgrade your ship's weapons and attributes by destroying enemies, collecting items, and gaining experience. Complete missions with star ratings for a challenging and replayable experience.

Highlights
  • Side-scrolling space shooter gameplay
  • RPG style character leveling
  • Stackable weapons
  • 30 unique missions with boss fights
  • Challenging and diverse gameplay
  • Replayability with difficulty settings
  • Purchaseable shortcuts and add-ins
Features
Read full description

Description: Celestial Assault is a blend of retro style side scrolling space shooter and RPG. Destroy enemies to gain experience, collect items and gold to upgrade your ships weapons and attributes until you cut through the toughest foes like butter! Missions each have star ratings for kill %, completion time and ship damage providing and unique challenge and tons of replay-ability. Story: In 2050 hostile aliens will invade earth to put an end to humanity! You are mankind's last hope of survival. Embark on an adventure through some of the most dangerous and equally beautiful parts of space to destroy the alien threat and secure the future of the human race. FEATURES: - Awesome Side Scrolling Space Shooter gameplay! - RPG style character leveling - Stackable Weapons - 30 unique mission featuring 5 boss fights and a combination of small enemy battles and maneuvering sequences. - Challenging and diverse gameplay with extensive replayability - Restart the game on a different difficulty upon completion and keep your inventory - Purchaseable shortcuts and game add-ins - Additional content coming soon!

About

Universe Invader 2

Embark on an epic space adventure to defend the galaxy from an alien invasion. This arcade shooter combines classic gameplay with stunning modern graphics, intense battles, and challenging boss fights. Collect power-ups and unlock achievements as you fight to save the universe.

Highlights
  • Stunning galaxy graphics
  • Intense alien battles
  • Epic boss fights
  • Collect power-ups and bonuses
  • Unlock achievements and rewards
Features
Read full description

Universe Invader 2: Alien War - Get ready for an exciting journey through space! Protect the galaxy from an alien invasion in this fun arcade space shooter game. Step into a thrilling universe full of danger and adventure. Universe Invader 2: Alien War combines the excitement of classic arcade games with modern graphics and features. Each level offers new challenges and surprises to keep you entertained. KEY FEATURES OF THE SPACE SHOOTER GAME: - Amazing Graphics: Explore beautifully designed galaxies that look stunning. - Exciting Battles: Fight fast and intense battles against waves of alien enemies. - Epic Boss Fights: Take on giant alien warships in challenging boss levels. - Power-Ups and Bonuses: Collect special items to improve your ship and win battles. - Achievements and Rewards: Unlock achievements and earn rewards as you progress. The universe’s future depends on you! Every alien you defeat brings you closer to solving the mystery of their attack. Can you uncover their plan and bring peace back to the galaxy? Are you ready to be the hero the galaxy needs? Download Universe Invader 2: Alien War today and join the adventure! Get ready, power up your ship, and start the battle—the galaxy is counting on you!

Screenshots

Celestial Assault4 screens
Universe Invader 24 screens

Verdict

The call

The clearest difference is rating: Universe Invader 2 at 4.8 against Celestial Assault's 3.8. Universe Invader 2 also leads on ratings volume (85 vs 4) and review sentiment (94% vs 85%). Celestial Assault's advantage is ads (none vs shown) and iOS requirement (6.0 vs 15.0). On price, update cadence, in-app purchases and monetization model 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. Celestial Assault sells 8 one-off in-app purchases and Universe Invader 2 sells 43 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Universe Invader 2 holds the better App Store score, 4.8 against 3.8. That said, the two scores are not equally well evidenced: Universe Invader 2 has 85 ratings behind it against 4, so its average is the more settled of the two. Written reviews point the same way: 85% of Celestial Assault's written reviews are positive against 94% of Universe Invader 2's.

UpkeepUpdate frequency

Celestial Assault ships an update every 2 months, Universe Invader 2 every 5 weeks. The most recent releases landed on October 23, 2026 and October 20, 2026 respectively.

Scorecard5 real differences · 5 level
Celestial Assault versus Universe Invader 2: the parameters behind the verdict, then further details
ParameterCelestial AssaultUniverse Invader 2
PriceFreeFree
Rating3.8 (4 ratings)4.8 (85 ratings) — better
Positive reviews85.0% of reviews94.1% of reviews — better
Number of ratings485 — better
Update frequencyEvery 2 monthsEvery 5 weeks — better
AdsNo — betterYes
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS6.0 — better15.0
Further details — not scored
Size105 MB466 MB
Age rating12+9+
DeveloperLucid Vision GamesGcenter

Customer experience

Celestial Assault

All ratings4 ratings
Positive75.0%
Neutral0.0%
Negative25.0%
Written reviews20 reviews
Positive85.0%
Neutral5.0%
Negative10.0%

Universe Invader 2

All ratings85 ratings
Positive96.5%
Neutral0.0%
Negative3.5%
Written reviews17 reviews
Positive94.1%
Neutral0.0%
Negative5.9%

In-app purchases

8 purchases

Celestial Assault

One-time8
  • $10,000 Gold$0.99
  • Attribute Point$0.99
  • Attribute Reset$0.99
Show 5 more
  • Advanced Stacking$1.99
  • Deep Space Mission Pack$1.99
  • Advanced Ranks$2.99
  • $50,000 Gold$2.99
  • 5 Attribute Points$2.99
43 purchases

Universe Invader 2

One-time43
  • Bundle Vip 4$0.99
  • Lucky Clover's Offer 1$0.99
  • Bundle Vip 2$0.99
Show 40 more
  • Bundle Vip 1$0.99
  • Starter Pack$0.99
  • Ruby 2$1.99
  • Premium Starter$1.99
  • Instant Rank Up 2$1.99
  • Ruby Offer 1$1.99
  • Endless Item Pass$2.99
  • Fighter Trion Launch Discount$2.99
  • Fighter K-oni Launch Discount$2.99
  • Ruby Offer 4$3.99
  • Ruby Offer 2$4.49
  • Unlock Hunt Advanced Pass$4.99
  • Gold 3$4.99
  • Ruby 3$4.99
  • Combo Ruby And Gold$4.99
  • Instant Rank Up 3$4.99
  • War Machine 5$4.99
  • War Machine 2$4.99
  • War Machine 3$4.99
  • Ruby Offer 3$5.99
  • Galactic Ruler 1$9.99
  • Combo SS Devices$9.99
  • Ruby Offer 5$9.99
  • Instant Rank Up 5$9.99
  • Abyss Void Launch Discount$9.99
  • Galactic Ruler 4$9.99
  • Galactic Ruler 5$9.99
  • Galactic Ruler 8$9.99
  • Ruby Offer 6$11.99
  • Instant Rank Up 6$11.99
  • Scorpio VI - Unlock$12.99
  • Instant Rank Up 7$14.99
  • Dream Team$19.99
  • Abyss Void - Unlock$19.99
  • Instant Rank Up 9$24.99
  • Instant Rank Up 10$29.99
  • Bundle Vip 9$49.99
  • Bundle Vip 13$99.99
  • Bundle Vip 14$99.99
  • Bundle Vip 20$99.99

Questions

Is Celestial Assault free?
Celestial Assault is free to download, with in-app purchases available.
Is Universe Invader 2 free?
Universe Invader 2 is free to download, with in-app purchases available.
Which has better reviews, Celestial Assault or Universe Invader 2?
Universe Invader 2 is rated higher. Celestial Assault averages 3.8 out of 5 from 4 ratings, while Universe Invader 2 averages 4.8 from 85 ratings.
Do Celestial Assault or Universe Invader 2 have ads?
Universe Invader 2 shows ads; Celestial Assault does not.
Which is updated more often, Celestial Assault or Universe Invader 2?
Celestial Assault ships an update every 2 months, and Universe Invader 2 every 5 weeks. Most recently, Celestial Assault was updated on October 23, 2026 and Universe Invader 2 on October 20, 2026.

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