Build and upgrade your fortress to defend against waves of monsters and boss attacks. Collect idle rewards and improve your defenses for longer runs. Designed for quick, one-handed play sessions.



241+ iOS apps & games curated and reviewed
The best defence idle apps and games on iPhone average 4.6★ across 241+ titles — we've ranked them by what real users actually keep on their phones. Updated October 2026.
| # | App | Price | Rating | Ads | In-App Purchases | Updated | |
|---|---|---|---|---|---|---|---|
| 1 | Free | 4.8★ (12) | Yes | No | Oct 2026 | ||
| 2 | Free | 4.4★ (1.6K) | Yes | Yes | Sep 2026 | ||
| 3 | Free | 4.7★ (328) | Yes | Yes | Oct 2026 | ||
| 4 | Free | — | Yes | No | May 2026 | ||
| 5 | Free | 4.6★ (2.5K) | No | Yes | Sep 2026 | ||
| 6 | Free | 3.0★ (2) | Yes | No | Oct 2026 | ||
| 7 | Free | 4.6★ (8.4K) | Yes | Yes | Oct 2026 | ||
| 8 | Free | 4.7★ (4.7K) | Yes | Yes | Oct 2026 |



Build and upgrade your fortress to defend against waves of monsters and boss attacks. Collect idle rewards and improve your defenses for longer runs. Designed for quick, one-handed play sessions.




Build a powerful fortress and upgrade its defenses to withstand waves of monsters. Reset your stats after each round to earn more gold and enhance your base for further progress. Discover new worlds and utilize powerful cards to become a great general.





Build a powerful space base and defend against endless enemy waves in this idle tower defense game. Upgrade turrets, unlock technologies, and earn AFK rewards offline. Strategize your defenses for infinite survival.