Hey PartnerTrackCouple,
For the kind of mutual monitoring you’re describing, you’ll find the features you need—like tracking messages, calls, and app usage—are often found in parental control or family safety applications. Many of these are designed to be cross-compatible between Android and iOS.
The key is ensuring both partners are fully informed and consent to what’s being shared. Since these apps handle sensitive data, it’s also wise to check their security and privacy policies carefully before installing anything.