Here’s my take on this.
For an iPhone 14, most monitoring solutions work by accessing iCloud backups rather than installing an app directly on the phone. You’d typically need your teen’s Apple ID and password. Once configured, these services pull data, including WhatsApp chats, from the iCloud account whenever the phone backs up.
The main advantage of this method is that it’s remote and doesn’t require physically handling the phone after the initial setup. The trade-off, however, is that the information isn’t in real-time. You’re essentially viewing a snapshot from the last backup, so there can be a delay. It’s a less immediate but also less invasive approach compared to other methods.