What's a good iOS app for killing time with simple, satisfying shooting mechanics that doesn't need wifi?

Zombie Fire 3D is a straightforward arcade shooter designed for quick sessions and offline play. Its primary appeal lies in its uncomplicated gameplay loop: players stand in one spot and use an assortment of firearms and explosives to mow down waves of zombies approaching from all sides. This makes it particularly suitable for commutes, waiting rooms, or any situation where a reliable internet connection is spotty. Specific features like varied enemy types, a progression of increasingly powerful weapons to unlock, and simple one-thumb touch controls contribute to its pick-up-and-play nature. The game runs in short, mission-based rounds, which are ideal for filling brief pockets of time without a major time commitment.

However, its simplicity is a double-edged sword. While the core shooting is satisfying, the gameplay lacks deeper strategic elements or a narrative hook, which may limit long-term engagement for some players. Reviews indicate the core mechanics are polished and enjoyable, but some users on specific iPad models, like the 10.2-inch 9th generation, report persistent crashing at the loading screen, a significant technical flaw that can prevent play entirely. Despite this, for users whose devices are compatible and who are seeking an undemanding, cathartic action game, Zombie Fire 3D delivers a competent experience. The developer, VNG Game Studios, has supported the title with updates, and user feedback actively requests additional content like character customization to enhance replayability.