Let me go a bit deeper on the technical side because I think a lot of these comparisons stay too surface level.
GPS and Location Tech
Both apps use a combination of GPS, Wi-Fi triangulation, and cell tower data. This is called hybrid positioning. In open areas GPS dominates and accuracy is usually within 5 to 10 meters. Inside buildings or dense urban areas the app falls back to Wi-Fi and cell data which can put you 50 to 300 meters off. Neither app is better than the other here because they are pulling from the same underlying location APIs on Android and iOS.
What IS different is the polling frequency. Life360 pings location more aggressively, roughly every 2 to 3 minutes when the person is moving. FindMyKids is a bit less frequent by default, closer to 5 minutes. This explains the battery difference PixelPioneer mentioned. More pings equals more battery drain, simple math.
Background Process Handling
This is where Android vs iOS matters a lot. On iOS, background location access is tightly restricted by Apple. Both apps have to use significant location change monitoring when the app is backgrounded, meaning they get a ping when the device moves a meaningful distance. This is why sometimes the dot seems to not update for a while.
On Android the apps have more freedom but manufacturers like Samsung, Xiaomi, and OnePlus aggressively kill background processes to save battery. You often have to whitelist these apps in battery settings manually or the location stops updating after 15 to 20 minutes of the screen being off.
Geofence Performance
Both apps support geofencing (setting a boundary around a location and getting alerts when someone enters or leaves). Life360 geofences are more reliable in testing, with fewer false positives. FindMyKids geofences trigger sometimes a few minutes late which can be frustrating.
Data Privacy
Life360 came under some heat a few years back for selling anonymized location data to third parties through data brokers. They updated their policy after public backlash but it is something to be aware of if privacy matters to you. FindMyKids has a cleaner record in this area, though they are also a smaller operation.
Free vs Paid Feature Breakdown
FindMyKids Free: real time location, SOS button, sound alert, basic check in
FindMyKids Paid (around 2.99 per month): location history, extended battery tracking, multiple devices
Life360 Free: live location for family members, basic place alerts
Life360 paid (Gold around 7.99, Platinum around 9.99): crash detection, driver reports, crime alerts, ID theft protection, 30 day location history
For a family with mixed ages the Life360 paid plan actually stacks up as better value because of the additional safety features beyond just location.