Coin Master is a simple slot-pulling mobile game that is widely popular all over the world. Amassing over 81 million downloads, it is the highest-grossing mobile game in Germany and the United Kingdom. The goal of the game isn't too complex; you spin the slot machine in hopes of receiving various rewards. However, you're only allotted a set amount of spins per day if you follow the game's rules. This is a significant downer for players who want to keep spinning for those prizes. Well, today, we'll be giving you some insights into how to earn free spins within Coin Master, so you don't have to wait until the next day to spin again. Inviting and requesting friends through Facebook As with most mobile games, Facebook plays an integral part in Coin Master. It can be used to login and a way to interact with your friends that are playing the game. Facebook can also be utilized to earn free spins. Every time you invite a friend through the social media site and they join Coin Master; you'll receive 40 free spins. All the invited friend has to do is sign up on their mobile device, and the free spins are yours. Another way to take advantage of this system is by requesting spins. If you have a Facebook friend playing Coin Master, you can ask a free spin from them and vice versa. All they have to do is grant you that free spin, and it's yours. You're allowed to do this 100 times each day, but every free spin has to come from a different friend. Image via Zendesk Making use of Email Gifts One easy method of earning free spins is signing up for the Email Gifts in\u00a0Coin Master. If you choose to do this, you'll receive an email every day with a link attached to it. Simply follow the link on your phone, and you'll be rewarded with free spins on your\u00a0Coin Master\u00a0account. You'll be presented with this offer when you load up the game for the first time.\u00a0 Collecting Card Sets Card Sets are a more lengthy way of earning free spins, but once you collect a Set, the amount of free spins you receive is substantial. Cards can be acquired through the opening of Chests, which can be purchased directly from the Shop or found during a Raid. Each different Set requires nine Cards, so you'll need to open a lot of Chests to complete each individual Set. You start with only a few Sets to finish, but as you grow your Village, the number of Sets available to you starts to grow. Image via Fun360 Watch Ads Perhaps the easiest way of earning free spins in Coin Master is to watch video ads after you've used up all of your spins for the day. Of course, watching ads doesn't guarantee you an unlimited supply of spins, but you can earn a fair amount. To check if you're eligible to watch ads, click on the "Spin Energy" button on the bottom right of the slot machine. If you're given an option to watch an ad, that means you still have some free spins. If you're not given a choice, you can't watch any more ads for the day.