Once your child has marked a chore as complete you should receive a notification on your device that a chore has been completed or a reward redeemed. In the app, approvals are located in the “alerts” tab of the app. If you’re not receiving notifications check in your settings to make sure that notifications are turned on.
Once on the alerts tab you can select chores and rewards individually to approve or use the “approve all” button for quick approval. You also have the ability to reject a chore if it hasn’t been completed. This will make the chore appear on the child’s app again so they have a chance to complete the chore.