Monzo are working on pots for committed spending.
I’m adding links to a sneak peek and explanations from @simonb and @Jami in regards to the development progress of this feature.
https://community.monzo.com/t/monzos-speedy-android-development/51957/10?u=mrmr
https://community.monzo.com/t/monzos-speedy-android-development/51957/14?u=mrmr
https://community.monzo.com/t/monzos-speedy-android-development/51957/23?u=mrmr