UK digital bank Tandem has released its second banking product, savings accounts which allow users a guaranteed interest rate, the company announced today. The savings accounts comes only two months after the launch of its banking first product, the Tandem credit card, in February.

The savings accounts will give users their rate of interest for a fixed term of one, two, or three years, starting with a 1.8% rate for a one-year committed deposit. Those who commit to three years will receive up to 2.3%, though they must deposit a minimum of £1,000 ($1,418.38).

The move pits Tandem against other challengers in the space looking to innovate savings, including fellow UK challenger Atom Bank, which currently offers fixed-rate accounts with a 2.15% interest rate for three year terms.

Tandem’s savings accounts are available on its  mobile app, as with its checking accounts.

Tandem is the same challenger which acquired Harrods Bank last year, a move which not only gave Tandem its banking license but also access to Harrods’ deposit business, granting access to 10,000 customer accounts and about $113 million in capital.

Read more at TechCrunch and Finextra.