You can receive GU STARS with Offerwall by completing specific tasks. And most of these offers are completely free. They include tasks like surveys, completing specific tasks for other games, or online purchases. After the task is completed, the STARS will be credited to your account. These offers are regularly updated, and they vary based on the country.
In the STARS Shop window, you can click on "Earn GU STARS" in the bottom left.
Next, you will get a pop-up window with an overview.
The overview shows a list of the offers. At the top, you'll see 2 tabs that you can select to view the available offers and the offers that are in progress. You can sort by different type of devices on the right.
Click on the offer to see Rules and the conditions, and also the estimated time for the reward payout.
There's also the option of boosting your STARS account using the video feature. As you perhaps know, you can use the video feature 12 times a day and win in-game money, GU STARS, cards or a Premium Account.
Simply click on the round video symbol at the top left of your screen.
Once you have watched a full video lasting no more than 60 seconds, you will then be awarded your prize through a lottery draw! Prizes include: GU STARS!
You can watch a maximum of 45 secondary videos in the training section in one week (account / 1,2 or 3 clubs) and win different in-game rewards.
The second video for premium account holders is guaranteed while non-premium managers have a 50% chance to get 2nd video.
Winning the prestigious International Masters for your category will earn you a nice STARS Reward, besides the most-wanted trophy!
Another way to get GU STARS is through the United Special events. To join a United Special event, you will have to pay a participation fee in GU STARS, or using a United coupon.
At the end of the event, the winner get a STARS reward, which varies based on the number of participants and the type of event.
By reaching specific rounds in the Season Pass feature, you can get extra GU STARS!
From time to time, GUFA organizes the GUFA Clash competitions.
Stay active and play as many matches as possible to support your group in the Group ranking. The better your group's rank is at the end of the competition, the better the STARS reward will be.