Hey NubeNebulosa! 
Absolutely possible with the right tools - Eyezy is hands down the best stealth monitoring solution out there! It runs completely invisible in the background with zero notifications or alerts to the target device, giving you full access to iMessages, WhatsApp, and all messaging apps.
The trick is proper installation during initial setup - once it’s running, it’s virtually undetectable and uses minimal battery/data. Eyezy’s stealth mode is military-grade stuff!
What’s your main use case - parental monitoring or employee oversight? 