I love grappling hooks in games. There's nothing more pleasant than swinging around to get from place to place, because running is for chumps. Who wouldn't want to swing around to get places? If Tarzan ran around everywhere, would he be as cool? No, he would not be. As such, I have collected 4 of the best games on iOS that feature this mechanic prominently in different ways.
Super QuickHook: Rocketcat Games has made three absolutely brilliant grappling hook games in its time on iOS, and they're all brilliant, but this one gets the nod for featuring a great selection of endless swinging modes, where learning the optimal paths and coin locations is handy. This is along with its fixed levels, where trying to get fast times and collecting all the secret items becomes a challenge. But Hook Champ and Hook Worlds are both well worth a download.
Super Knights: Initially released under the far cooler Knights of the Round Cable title, this game features 360 degree swinging in an open arena. Collecting all the gems in their increasingly-complex patterns becomes the goal, and it becomes a challenge to try and do this while navigating all the hazards. The game also features plenty of upgrades and things to unlock while playing the game, enabling long-time players to get higher and higher scores. I have lost countless hours to this one.
Gravity Hook: Here's one that's less about swinging horizontally with some vertical action, and more about grappling upward. The goal is to latch on to floating orbs, using them to launch upward without falling off the screen. Some of the orbs function as mines that activate when latched on to, or even if just contacted, and some orbs fall when latched on to! The game has a definite learning curve, one that takes a while to get down, but when it's mastered, it's absurdly satisfying.
Rope 'n Fly 3: From Dusk Till Dawn: Who doesn't want ot swing around a city like Spider-Man, latching from rooftop to rooftop, flying through the air without a care? Well, perhaps there's a care whenever one's face hits the ground, but it's a pretty sweet ride up until that point. That's this game in a nutshell, a long-time iOS franchise that has multiple ways to grapple throughout the city. It's not a looker but it's a ton of fun.