The short answer
Animal Loop uses Game Center. Tap + on the Friends page to send a friend the game in Messages, then send them a Game Center friend request. Once they have the game and you're Game Center friends, they show up on your Friends page with their Grand Prix times next to yours. And once you've finished a world's Grand Prix, your friends who've raced it join you there as ghosts.
How to race your friends
Sign in to Game Center
Animal Loop uses Apple's Game Center for friends, so make sure you're signed in to Game Center on your iPhone, iPad or Mac.
Invite a friend
Swipe to the Friends page and tap + or Invite a friend. Pick a contact and Animal Loop opens Messages with the game's link, ready to send. Then send them a Game Center friend request from the card that follows.
Already have the game? You can also add each other as friends straight from Game Center.
Watch them show up
Friends appear once two things are true: they have Animal Loop, and you're Game Center friends. Your Friends page then shows their best Grand Prix times next to yours, world by world, with the racer each time was set with. Friends who haven't raced a Grand Prix yet show up too, with their stars.
Want more detail? Tap Leaderboards on the Friends page to open Game Center's leaderboards, and the Game Center button on the Achievements page opens your Game Center dashboard.
Race their ghosts
Once you've finished a world's Grand Prix, your friends who've raced it join you there as ghosts, at the pace of their best times. Pass them, then brag about it.
Frequently asked questions
Do my friends need Animal Loop too?
Yes. Your friends need Animal Loop and a Game Center account. Animal Loop is free on iPhone, iPad and Mac, so it's easy to invite anyone.
Why don't my friends show up?
They need Animal Loop, and you need to be Game Center friends. If you've sent a request, they just have to accept it. Ghosts only show up in a Grand Prix you've finished, and only for friends who've raced it.
What are ghosts in Animal Loop?
Ghosts are see-through racers that follow your Game Center friends' best Grand Prix times. Once you've finished a world's Grand Prix, your friends who've raced it join you there as ghosts, so you know right away if you're ahead or falling behind, even when they're not playing.
Where can I see my friends' times?
On the Friends page. It lists your Grand Prix times and your friends' in every world, with the gap between each friend and your best. For more detail, tap Leaderboards to open Game Center's leaderboards.
Is Animal Loop free to play with friends?
Yes. Animal Loop is free, and racing friends through Game Center doesn't cost anything.
More questions
Ready to race?
Animal Loop is free on iPhone, iPad and Mac, and every racer can be earned in the game.
Get Animal Loop free on the App Store See the game