249+ iOS apps & games curated and reviewed
The best space defense apps and games on iPhone average 4.5★ across 249+ titles — we've ranked them by what real users actually keep on their phones. Updated August 2026.
| # | App | Price | Rating | Ads | In-App Purchases | Updated | |
|---|---|---|---|---|---|---|---|
| 1 |  | Free | 4.7★ (9K) | Yes | Yes | Sep 2026 | |
| 2 |  | Free | 4.6★ (2.6K) | Yes | Yes | Sep 2026 | |
| 3 |  | Free | 5.0★ (1) | No | No | May 2026 | |
| 4 |  | Free | — | No | Yes | Aug 2026 | |
| 5 |  | Free | 4.7★ (653K) | Yes | Yes | Sep 2026 | |
| 6 |  | Free | 4.8★ (4.9K) | Yes | Yes | Sep 2026 | |
| 7 |  | Free | 4.5★ (501) | Yes | Yes | Aug 2026 | |
| 8 |  | Free | 5.0★ (1) | No | No | May 2026 |
Defend Earth from alien invaders in this idle tower defense game. Build diverse turrets, strategize your defense, and power up your character with unique skills and weapons. Collect resources and take on global challenges to protect the planet.
Defend your home planet in this roguelike tower defense game. Build and upgrade defenses to fend off alien invaders. Experience deep strategy with unique playthroughs and unlockable sentinels.
Pilot humanity's last hope in this thrilling 2D space shooter. Explore star systems, upgrade your spacecraft with advanced technologies, and battle increasingly formidable alien fleets. Engage in classic space combat with a unique twist, utilizing rockets, mines, and powerful bombs to defend Earth.
