PinholeCam, developed by Tom Callahan, offers a unique method to simulate the long exposure times of a pinhole camera on your iPhone. Unlike other apps, PinholeCam doesn't just mimic the visual effects but gradually exposes the scene over time, allowing for effects not achievable with regular camera apps.

With the ability to set exposure time presets or control it manually, simulate vignetting, and choose an emphasis image to freeze moving objects, PinholeCam provides a versatile experience. However, note that the app is memory-intensive, especially during long exposures, requiring users to close other apps and consider device stability tips provided by the developer.