Comparison

Sky Invaders vs Alien Shooter

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

Head to head
About

Sky Invaders

Defend Earth from relentless alien invaders as the last Sky Fighter. Obliterate waves of increasingly formidable enemies, strategize your limited firepower, and climb the leaderboard in this fast-paced, retro-style arcade game.

Highlights
  • Defend Earth from alien invaders
  • Increasingly challenging enemy waves
  • Limited firepower strategy
  • Climb the leaderboard
  • Fast-paced gameplay
  • Retro visuals
Read full description

Get ready for an adrenaline-pumping adventure with “Sky Invaders”! Step into the shoes of the last Sky Fighter and defend Earth from an endless onslaught of Invaders. In this thrilling new release, the Invaders are relentless, growing faster and stronger with every wave. Your mission? To obliterate as many Invaders as possible before they breach Earth’s defences. Armed with limited firepower, you’ll need to rely on your wits and strategy to climb the leaderboard. The more formidable the Invader, the higher the points, adding a strategic twist to the high-octane action. With its fast-paced gameplay and retro visuals, “Sky Invaders” will keep you on the edge of your seat as you fight to save the world. Are you ready to take on the challenge and become Earth’s ultimate defender?

About

Alien Shooter

Pilot powerful spaceships against relentless alien invaders in thrilling arcade-style space battles. Upgrade your arsenal, face epic boss battles, and enjoy diverse game modes with stunning graphics and sound. This free-to-play adventure offers endless replayability.

Highlights
  • Intense space battles
  • Spaceship upgrades
  • Epic boss battles
  • Diverse game modes
  • Stunning graphics and sound
  • Daily missions and rewards
Features
Read full description

Engage in adrenaline-pumping space battles and become the galaxy's last hope in Galaxy Shooter: Alien Attack! Dive into an immersive arcade shooter experience where you'll pilot powerful spaceships against relentless alien invaders. This is not just another shooting game; it's a high-octane adventure that tests your reflexes and strategic skills. Key Features: Intense Space Battles: Engage in thrilling air combat against hordes of alien enemies. Dodge asteroids, weave through enemy fire, and unleash devastating attacks. Upgrade Your Arsenal: Collect power-ups and coins to upgrade your spaceship's firepower, speed, and defense. Transform your ship into an unstoppable force! Epic Boss Battles: Face colossal alien bosses that will challenge your skills to the limit. Can you defeat these formidable foes? Diverse Game Modes: Embark on a captivating campaign, test your endurance in endless mode, or join forces with friends in multiplayer challenges. Stunning Graphics and Sound: Immerse yourself in a visually stunning galaxy with vibrant colors, detailed spaceships, and explosive effects. The dynamic sound effects and epic soundtrack will keep you on the edge of your seat. Daily Missions and Rewards: Complete daily missions to earn valuable rewards, including coins, power-ups, and exclusive items. Endless Replayability: With procedurally generated levels and a variety of game modes, Galaxy Shooter: Alien Attack offers endless replayability. Why You'll Love Galaxy Shooter: Alien Attack: Classic Arcade Action: Experience the thrill of classic arcade shooters with modern graphics and gameplay. Addictive Gameplay: The fast-paced action and challenging levels will keep you hooked for hours. Free to Play: Enjoy the game for free and earn rewards as you progress. Optimized for Mobile: Smooth controls and optimized performance ensure a seamless gaming experience on your mobile device. Join the Galactic Defense Force! The galaxy is under attack, and only you can save it. Download Galaxy Shooter: Alien Attack now and become the ultimate space hero! *** IMPORTANT*** The Terms of Service govern your use of OneGame Services, and contain important information about your rights and responsibilities. OneGame uses your personal information to provide and develop OneGame’s products, mobile applications according to the privacy policy. Term of service link : https://onegamestudio.net/policy_onegame.htm This Privacy Notice explains who we are, how we collect, share and use personal information about you, and how you can exercise your privacy rights. PRIVACY NOTICE link : https://www.onegamestudio.net/privacy.htm

Screenshots

Sky Invaders4 screens
Alien Shooter4 screens

Verdict

The call

The clearest difference is review sentiment: Sky Invaders at 50% against Alien Shooter's 0%. Sky Invaders also leads on in-app purchases (none vs 12). Alien Shooter's advantage is rating (4.7 vs 1.0) and update cadence (every 2 months vs every 23 months). On price, ads, device support and iOS requirement 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. Alien Shooter sells 12 one-off in-app purchases. Sky Invaders asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Alien Shooter holds the better App Store score, 4.7 against 1.0. That said, the two scores are not equally well evidenced: Alien Shooter has 43 ratings behind it against 1, so its average is the more settled of the two. Written reviews complicate that: 50% of Sky Invaders's written reviews are positive against 0% of Alien Shooter's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

Sky Invaders ships an update every 23 months, Alien Shooter every 2 months. The most recent releases landed on September 14, 2026 and October 24, 2026 respectively.

Scorecard6 real differences · 4 level
Sky Invaders versus Alien Shooter: the parameters behind the verdict, then further details
ParameterSky InvadersAlien Shooter
PriceFreeFree
Rating1.0 (1 ratings)4.7 (43 ratings) — better
Positive reviews50.0% of reviews — better0.0% of reviews
Number of ratings143 — better
Update frequencyEvery 23 monthsEvery 2 months — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS12.0 — better13.0
Further details — not scored
Size4 MB243 MB
Age rating4+9+
DeveloperAlphaworksOnegame Global Limited

Customer experience

Sky Invaders

All ratings1 ratings
Positive0.0%
Neutral0.0%
Negative100.0%
Written reviews4 reviews
Positive50.0%
Neutral0.0%
Negative50.0%

Alien Shooter

All ratings43 ratings
Positive88.4%
Neutral9.3%
Negative2.3%
Written reviews1 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

In-app purchases

None

Sky Invaders

No in-app purchases

12 purchases

Alien Shooter

One-time12
  • Premium Pack$0.99
  • Starter Offer$0.99
  • Sale-off Green Dragon$0.99
Show 9 more
  • Daily Raidboss 1$0.99
  • Sale-off White Tiger$1.99
  • Daily Raidboss 2$1.99
  • Coin Pack 3$4.99
  • Small Shield Pack$4.99
  • Great Offer$4.99
  • Double Coin Forever$4.99
  • Coin Pack 4$9.99
  • Coin Pack 5$19.99

Questions

Is Sky Invaders free?
Sky Invaders is free to download, with no in-app purchases.
Is Alien Shooter free?
Alien Shooter is free to download, with in-app purchases available.
Which has better reviews, Sky Invaders or Alien Shooter?
Alien Shooter is rated higher. Sky Invaders averages 1.0 out of 5 from 1 ratings, while Alien Shooter averages 4.7 from 43 ratings.
Do Sky Invaders or Alien Shooter have ads?
Neither Sky Invaders nor Alien Shooter shows ads.
Which is updated more often, Sky Invaders or Alien Shooter?
Sky Invaders ships an update every 23 months, and Alien Shooter every 2 months. Most recently, Sky Invaders was updated on September 14, 2026 and Alien Shooter on October 24, 2026.

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