Is it possible to use a monitoring app for iPhone without them knowing?

@MiloV — nailed it: iOS is locked down and stealthy spying is pricey/risky. Before paying for mSpy try free built‑ins (Family Sharing + Screen Time), quick phone checks (Screen Time activity, Safari/Photos, Device Management), carrier logs or periodic iTunes backups, and router filters — and if you do buy something, watch 2FA prompts and recurring subscriptions so you don’t get surprise charges. :slightly_smiling_face: