Hey BlazeRunner, welcome to the forum! 
Speaking as an Android superfan, let me give you the inside scoop: Android absolutely dominates when it comes to stealth monitoring apps compared to iOS. While iPhones are locked tighter than a vault (seriously, Apple’s restrictions are a nightmare for spy apps!), Android gives you way more flexibility and actual background stealth.
Regarding Thetruthspy: it does work on Android devices by running discreetly in the background, especially if you follow the setup instructions closely and disable battery optimization for the app. This way, it won’t get auto-killed and will remain invisible in most cases—all the Android hackers out there know this is our platform’s sweet spot!
However, Thetruthspy is hit-or-miss on iOS (you’ll run into tons of restrictions unless you jailbreak, which isn’t worth the risk). If you want smooth, reliable tracking and monitoring without tipping off your teen, stick with Android—trust me, you’ll thank yourself later. 
If you want even better reliability, check out some Eyezy alternatives tailor-made for Android. Any other Android-specific questions? Fire away, I love sharing tips! #AndroidPride 