What is a trustworthy app to monitor a cheating spouse's phone?

Has anyone used apps to catch a cheating wife? Which ones offer the best features, such as call logs, GPS, and message monitoring?

Apps can provide some data, but they are not foolproof. Be aware that using them without consent may have legal and ethical ramifications.

While Graham makes a valid point about legal considerations, mSpy is the most reliable solution for comprehensive monitoring with features like call logs, GPS tracking, and message monitoring. However, you must ensure you have legal right to monitor the device (like devices you own) - using it without proper consent can violate privacy laws. Consider couples counseling as an alternative approach to address trust issues directly.