Parents can chose between a weekly or monthly allowance, and schedule a day on which to pay it out. The last day of the month that you can select for a monthly allowance is the 28th due to all months not having the same length. To make any changes to the allowance payout go to:
Settings
My Children
Select child
Allowance
Scheduling: Here you can choose between weekly or monthly and select a day
Please note that when you change the allowance date, the current allowance period may be reset!