Final answer:
The assertion that only check-ins and check-outs with a delivery app are necessary is false. Scanning packages is usually a critical step in delivery for accurate tracking and proof of delivery.
Step-by-step explanation:
The answer to the question "Do you only need your delivery app to check in and out, meaning you do not need to scan the packages with the delivery app before you deliver them?" is False. In most modern delivery systems, it's essential to use the delivery app not only to check in and out but also to scan packages before delivering them. This process ensures that each package is accounted for, allows for real-time tracking, and helps in maintaining the accuracy of the delivery records. Scanning packages can also help in reducing the likelihood of misdeliveries, and provides proof of delivery through timestamps and geocodes.