Since we have a bunch of options floating around in this thread, let me do a proper comparison so people can actually see the differences side by side.
Free Built In Tools vs Paid Third Party Apps
Feature: Screen Time Limits
Google Family Link: Yes
Apple Screen Time: Yes
Bark: No
Qustodio: Yes
Feature: App Blocking
Google Family Link: Yes with approval system
Apple Screen Time: Yes with categories
Bark: Yes limited
Qustodio: Yes by category
Feature: Web Content Filtering
Google Family Link: Basic through SafeSearch
Apple Screen Time: Yes through Content Restrictions
Bark: Yes
Qustodio: Advanced with 30 plus categories
Feature: Text and SMS Monitoring
Google Family Link: No
Apple Screen Time: No
Bark: Yes flags only
Qustodio: Yes on Android
Feature: Social Media Monitoring
Google Family Link: No
Apple Screen Time: No
Bark: Yes 30 plus platforms
Qustodio: Limited
Feature: Location Tracking
Google Family Link: Yes real time
Apple Screen Time: Through Find My
Bark: Yes with check ins
Qustodio: Yes with geofencing
Feature: Call Monitoring
Google Family Link: No
Apple Screen Time: No
Bark: No
Qustodio: Yes on Android
Feature: Works on iPhone
Google Family Link: No
Apple Screen Time: Yes
Bark: Yes
Qustodio: Yes with limitations
Feature: Works on Android
Google Family Link: Yes
Apple Screen Time: No
Bark: Yes
Qustodio: Yes
Feature: Price
Google Family Link: Free
Apple Screen Time: Free
Bark: 14 dollars per month
Qustodio: 54 dollars per year
Now the real question is what do you actually need. If your kid has an Android phone and you just want to lock it down at night and manage apps, Family Link is all you need and it is free. If your kid has an iPhone, Screen Time plus Find My gives you a decent setup at zero cost.
But if you are in DevFlux’s situation, where you are worried about who your kid is talking to and what they are saying, neither free option cuts it. You need something like Bark for message monitoring or Qustodio for call and SMS logs.
My recommendation for most parents would be to start free, use the built in tools for a month, and see if they give you enough peace of mind. If you still feel like you are missing things, then upgrade to a paid option that fills the specific gap you are concerned about. No point in paying for features you do not need.