Top Dup, one of the key figures in Perth’s new doughnut order, is giving away free doughnuts on April 19 and 20.

The catch? You have to download Cupflick, a cashless coffee and brunch purchasing app. But for every coffee bought through the app, Top Dup will give you a free doughnut and donate a dollar to Manna, a local volunteer group that distributes meals to needy people around Perth.

“We’d like to do something like this every quarter,” says Cupflick founder Jonathan Lim. “If the next few days go well, we’d like to add a feature in our app for users to donate their coffee savings to a charity.”

Cupflick users can pick up their free doughnuts at 21 cafes across the metropolitan area, including Babylon Cafe, Bench Espresso, Elixir Coffee Specialists, Fix Espresso, Get Ya Fix, Henry Saw, Hopper Espresso, Holmes & Co, Karibu, Kinky Lizard, Le Vietnam, Little Matcha Girl, Llama Espresso, Louve Café, Mercado Negro, Milktooth Coffee, Mini Espresso, Moana Coffee, Pony Expresso, The Sassy Cookie and Spring Espresso.

A limited number of Top Dup doughnuts will be available at each cafe each day.