×2 bonus and sale
One purchase doubled and paid items 30% cheaper
Two things make a purchase better value: the ×2 bonus everyone has once, and a sale that happens from time to time.
×2 bonus
The game doubles one purchase for money - once per account: a hundred spins become two hundred, a month of Premium becomes two. The bonus has no expiry: it waits until you buy something.
While the bonus is unused, the shop shows it with a banner and a “+N” line under the price. Once it’s used, the bot will say on the receipt that you got twice as much, and the banner disappears.
Doesn’t apply to: coin purchases, gifts to another player and event bundles. If you gift to a friend, your ×2 isn’t used up.
Sale
Sometimes everything paid gets 30% cheaper: spins, shards and Premium, in dollars and Stars. Sales are switched on by the developers, usually for 24 hours.
A price by card or PayPal never drops below $5: 100 spins in a sale are $5 instead of $6.49. You’ll notice a sale right away: in the app there’s a dot on the “Shop” tab and a countdown line above the shelves, in the bot - a line under the main menu. Coin items and event bundles stay at the regular price.
Together
The ×2 bonus works on top of a sale. The best-value purchase in the game is your ×2 bonus on a sale day.