# Sky Invasion vs RETRO

The clearest difference is iOS requirement: Sky Invasion at 12.0 against RETRO's 15.0. On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Sky Invasion sells 10 one-off in-app purchases and RETRO sells 3 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

## The numbers

| Metric | Sky Invasion | RETRO |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (1 ratings)](https://appshunter.io/ios/app/sky-invasion-reboot/id6476250384/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | — | Every 7 months |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 281 MB | 124 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 12+ | 9+ |
| Developer | [U8Space Sdn. Bhd.](https://appshunter.io/developer/1482236420) | [Apps Bergman Ltda](https://appshunter.io/developer/1117417290) |

## What reviewers say

### Sky Invasion

[App page](https://appshunter.io/ios/app/sky-invasion-reboot/id6476250384)

Pilot a variety of aircraft, each with unique upgrades and weapons, to defend Earth from monstrous enemy planes. Engage in epic boss battles, collect and upgrade your fleet, and compete for the top spot on the leaderboard in this classic shoot-em-up.

**Highlights:** Dozens of aircraft with unique upgrades, Variety of weapons and ultimate moves, Epic boss battles, Unlock and upgrade planes, Leaderboard challenges, Classic shoot-em-up gameplay

**Features:** macOS Compatibility

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Mini Pack | $0.99 | one-time |
| Booster Bundle | $0.99 | one-time |
| Small Pack | $1.99 | one-time |
| Weekly Bundle | $2.99 | one-time |
| Big Pack | $3.99 | one-time |
| Bronze Pack | $5.99 | one-time |
| Silver Pack | $8.99 | one-time |
| Gold Pack | $12.99 | one-time |
| Crystal Pack | $19.99 | one-time |
| Diamond Pack | $29.99 | one-time |


### RETRO

[App page](https://appshunter.io/ios/app/retro-space-2/id6502924583)

Embark on an epic space adventure with over 30 action-packed levels. Battle swarms of enemies, face challenging bosses, and enjoy stunning retro-style graphics with an immersive soundtrack. Compete for top scores worldwide.

**Highlights:** 30+ levels of intense action, Epic boss battles, Stunning retro-style graphics, Immersive soundtrack, Worldwide high score competition

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Extra Life | $0.99 | one-time |
| Midas Hands | $1.99 | one-time |
| Bonus Package | $2.99 | one-time |


## Frequently asked questions

### Is Sky Invasion free?

Sky Invasion is free to download, with in-app purchases available.

### Is RETRO free?

RETRO is free to download, with in-app purchases available.

### Do Sky Invasion or RETRO have ads?

Both Sky Invasion and RETRO show ads.

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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.*