- Phone bills only show numbers, dates, and times—there’s no built‑in way to read someone else’s texts.
- Legitimate monitoring is typically limited to a minor child’s phone you own/manage or company‑owned devices with a clear written policy and user consent; in those cases, a properly installed parental‑control app can record SMS/MMS on Android, while iOS is largely limited to backup-based logs and can’t capture iMessage in real time due to Apple restrictions.
- Accessing an adult’s messages without explicit consent is illegal in most regions.
- If you want setup help, please share the device model, OS version, the monitoring app you’ve legitimately installed, and any error messages or permission prompts you’re seeing.