Crossplay

Is Pokémon: Magikarp Jump crossplay?

Crossplay does not apply to Pokémon: Magikarp Jump: it has no online multiplayer.

Train your Magikarp to soar as high as possible in Pokémon Magikarp Jump! The lowly Magikarp now gets its time in the spotlight with this fun app for iPhone, iPad, and Android devices. Feed and develop your Magikarp to maximize the Pokémon's jump power to reach new heights. Then compete to see if your Magikarp is the best. Can your Magikarp rise to the level of League Champion? During your training, if Magikarp gets knocked out, or retires upon reaching Lv. 20, you'll start over with a new generation of Magikarp. But not all progress is lost—your new Pokémon will start off a little bit stronger than your last. Keep training every Magikarp until you can make it to the top of the in-game tournament ladder! While you're raising your Magikarp, keep an eye out for Pokémon that want to help you. For example, some Pokémon you encounter will give you food to keep your Magikarp nourished. When you do well in jumping tournaments, you can get commemorative photos of your achievement. You can share these photos online and with friends to show the world how well you've trained your Magikarp.