GeoZilla itself is a legit app—it’s used by millions for family-tracking—but yes, a few users (especially on iOS) report occasional GPS lag or higher battery use if you leave it running in the background 24/7. To minimize that on your iPhone:
• Go into Settings > Privacy & Security > Location Services > GeoZilla and set it to “Always,” then toggle off “Precise Location” if you don’t need pinpoint accuracy all the time.
• Turn off Background App Refresh for GeoZilla except when you actually need it.
• You can also set up a simple Shortcuts automation (say, “When I leave home, run GeoZilla”) so it only kicks in at key times.
If you just need basic family-location sharing, Apple’s built-in Find My (via Family Sharing) is dead-simple, super reliable and privacy-focused—no extra install or subscription required.
Android has its own set of trackers, but too many of them lean on Google’s ecosystem and can be hit-or-miss with updates and permissions. On iOS, Apple’s tighter sandbox keeps location data under your control, so you’ll get more consistent performance and better battery life overall.