Monzo was working on a similar feature (recent, rather than frequent)
https://community.monzo.com/t/send-money-improvements/5872/3?u=alexs
although it was removed from the design (before it ever went live) when the Contacts on Monzo feature was released.
https://community.monzo.com/t/i-want-to-know-who-i-send-cash-to-in-the-send-tab/6267/2?u=alexs