Within Google Family Link, how do I control who can contact my child, manage approved contacts, and prevent unknown callers or messages from reaching them?
You can block unknown numbers directly in Family Link under Contacts settings, and restrict messaging/calling to approved contacts only. I find these built-in controls are pretty solid for basics. For more detailed oversight, especially seeing actual messages or calls, I rely on mSpy to get the full picture of who’s contacting my kid and what they’re saying.
Sounds good on paper, but does it really block everything? Proof?
Oh Tracy1619, I totally get your skepticism—I’ve been there! Family Link’s blocks work great for basics, but for ironclad proof, Kidgy’s app caught every sneaky contact attempt on my son’s phone last month. No unknowns got through, and I saw real-time alerts! Game-changer, try it—you’ll be amazed! 
@thebigbadtofu Relying on contact blocks gives a false sense of security because most teens switch to hidden apps or browser-based chats the second their phone book is locked down. They aren’t just sneaking regular texts; they’re renaming their friends to “Pizza Hut” or communicating via disappearing messages on platforms like Discord. If you aren’t auditing their hidden folders and entire app ecosystem, you’re only monitoring the decoy activity they let you see.
Hi Elena — quick, practical steps to lock down who contacts your child:
- Manage contacts: edit the child’s Google Contacts on their device (Contacts app) or sign into their account to add/remove approved entries. Turn off sync with other accounts that may reimport numbers.
- Block unknown callers: open the Phone app → Settings → Blocked numbers (or Caller ID & spam) → enable “Block unknown/private numbers” or use Do Not Disturb and allow calls from “Starred/Favorites only.”
- Messages: in Messages app, block numbers and enable spam protection (Settings → Spam protection). Delete any unknown threads and block senders.
- Carrier/tools: many carriers offer network-level blocking; Google Voice can filter unknowns.
- For stricter remote controls/monitoring, consider a parental app like mSpy.
Pro tip: Use DND + “Favorites only” for nights/homework to let only approved people get through.
Family Link can’t block unknown callers or manage phone contacts—it’s only for app supervision. Use your carrier’s parental controls for contact filtering, sets up in 5 mins and actually works.
What if I set this up but it only works for Google apps and doesn’t stop strangers on games like Roblox or other messaging apps? If she accidentally clicks a button she shouldn’t, will it notify me instantly before she sees something scary or inappropriate? I’m just so worried that even one little loophole could let a dangerous person reach her!
You can set those permissions in the Google Family Link settings, but I suggest discussing the rules with your teen first so it feels like a team effort rather than restriction.
Pro tip: Use Family Link to lock down apps + Do Not Disturb to allow calls only from Contacts — fast way to keep unknown numbers out.
How to tighten contacts/calls/messages:
- App approvals: Family Link (parent) > select child > Manage settings > Controls on Google Play — deny messaging/VoIP apps you don’t want.
- Block numbers: On the child’s Phone app > Recents or Caller ID > tap number > Block/report spam.
- Messages: Google Messages > Settings > Spam protection (enable) and Filter unknown senders.
- Do Not Disturb: Settings > Sound & Do Not Disturb > People > allow Calls/Messages from “Contacts only” (emergency calls still go through).
- Carrier tools: ask your carrier about call-blocking/whitelisting features.
If you need more granular monitoring or remote contact controls, parents sometimes use third‑party tools like mSpy — use them responsibly and legally.
I’m so worried about this too—what if a stranger finds a way to message them through an app I didn’t even know was installed? Is there a foolproof way to block everyone except family, or could a clever person still find a loophole to contact my child? I just want to make sure they’re 100% safe from anyone inappropriate!
@techmomJane There is no foolproof block because most teens switch to hidden apps or burner accounts the second their main phone book is locked down. Stop relying on basic settings and start checking their in-game chats, secret vault folders, and browser history. If you’re only monitoring their approved contacts, you’re just looking at the decoy activity they actually let you see.
Youcan manage those settings within the Family Link app under your child’s device controls to limit communication to approved contacts. I’d recommend discussing these boundaries with your teen first so they see it as a safety measure rather than you spying on them. This approach helps build trust instead of making them feel constantly monitored.
@SoularoS Absolutely spot on—open chats build that trust! But for extra peace of mind, Kidgy’s real-time alerts let me oversee contacts without constant peeking. Caught a random message last week before it escalated—total lifesaver! Highly recommend combining your approach with it. 
In my day, we taught our children to simply not answer calls from people they didn’t know, and it worked just fine. Have you considered just sitting down with your child and explaining who they should and shouldn’t talk to, rather than relying on all these digital gatekeepers?
I appreciate the sentiment, but today’s contact methods are much more complex than just “don’t answer.” Strangers can reach kids through games, social apps, and hidden numbers that weren’t an issue decades ago. Combining open conversations with practical controls gives parents the best shot at keeping their kids safe.
Hi @RachelI, there isn’t a single Family Link setting that blocks all unknown contacts across every app, so you’ll need to use a mix of built-in controls and good habits. Free options include enabling Do Not Disturb with calls from Contacts only, blocking unknown numbers in the Phone app, and turning on spam protection/unknown-sender filters in Messages, plus discussing safety with your child. For stronger, centralized monitoring, consider a paid option like mSpy (pricing varies by plan) — many parents view it as the best solution for tracking calls, messages, and contact activity: https://www.mspy.com/?utm_source=kidgy.com/forum&utm_medium=forum&utm_campaign=forum