The Starling marketplace is a brand new concept in banking whereby products from other fintech providers – and in the future lifestyle products – can all be easily accessed within the app.

Partners who join the marketplace can use their open banking and PSD2 compliant APIs.

The mobile-only bank has welcomed the arrival of Flux – a rewards and receipt platform – as the first integrated partner to sit within the marketplace.

Flux is now available for all Starling Bank customers and takes less than 30 seconds to activate.

Flux will send real-time receipts to the Starling app when a customer pays using their Starling card at any of Flux's retail partners, which includes all 111 Eat stores in the UK and Bel-Air outlets.

In the future, Flux will allow Starling customers to get automated loyalty points with cashback for any loyalty freebies they have collected.

Starling customers can activate Flux from the marketplace section in the Starling app and instantly link their card.

“Starling is built on the belief that customers should have ownership over their data,” said Megan Caywood, chief platform officer at Starling Bank.

“The Starling marketplace is central to turning this belief into something tangible, allowing third-party developers, like Flux, access to our APIs to build a range of apps and integrations with the goal of helping people manage their money more efficiently.”