# Sky Invaders vs Alien Shooter

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.

Both are free to download. Alien Shooter sells 12 one-off in-app purchases. Sky Invaders asks for nothing beyond the download.

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.

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.

## The numbers

| Metric | Sky Invaders | Alien Shooter |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.0 (1 ratings)](https://appshunter.io/ios/app/sky-invaders/id566963150/reviews) | **[4.7 (43 ratings)](https://appshunter.io/ios/app/alien-shooter-galaxy-invaders/id6752370090/reviews)** |
| Number of ratings | 1 | **43** |
| Positive reviews | **50.0% of reviews** | 0.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 23 months | **Every 2 months** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 4 MB | 243 MB |
| Requires iOS | **12.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 9+ |
| Developer | [Alphaworks](https://appshunter.io/developer/566963153) | [Onegame Global Limited](https://appshunter.io/developer/1820829095) |

## What reviewers say

### Sky Invaders

[App page](https://appshunter.io/ios/app/sky-invaders/id566963150)

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

**In-app purchases:** none


### Alien Shooter

[App page](https://appshunter.io/ios/app/alien-shooter-galaxy-invaders/id6752370090)

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:** macOS Compatibility, Vision Pro support

**In-app purchases (12)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Pack | $0.99 | one-time |
| Starter Offer | $0.99 | one-time |
| Sale-off Green Dragon | $0.99 | one-time |
| Daily Raidboss 1 | $0.99 | one-time |
| Sale-off White Tiger | $1.99 | one-time |
| Daily Raidboss 2 | $1.99 | one-time |
| Coin Pack 3 | $4.99 | one-time |
| Small Shield Pack | $4.99 | one-time |
| Great Offer | $4.99 | one-time |
| Double Coin Forever | $4.99 | one-time |
| Coin Pack 4 | $9.99 | one-time |
| Coin Pack 5 | $19.99 | one-time |


## Frequently asked 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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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*