Finally, real internet safety is possible

Peace of mind for parents

Gertrude lets you block the entire internet, only unlocking the portions you choose. Keep your kids only and exactly where you want them to be online. Plus, review screenshots and keystrokes of their activity from your own computer or phone. Mac parental controls have never been this good.

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A losing game

Most internet safety tools try to block categories of the internet. With 2 billion websites, and tens of thousands more being added every day, it's simply impossible to maintain up-to-date lists correctly categorizing even a fraction of dangerous websites.


websites on the internet*


New websites created every second


Of all websites on the internet are porn


New websites created in the last 24 hours


New websites created since you visited this site

Safe is now possible

So it's not safe to block only categories of the internet, but taking the reverse approach is hard. Rather than give up and settle for the illusion of safety, Gertrude makes this manageable by letting you:

Take complete control

Choose exactly where your kids are allowed online, and make sure they can't go anywhere else. No other mac internet filter allows the same level of strict control.

Manage on the go

Add or remove sites from your own personal safelist from your phone or computer, wherever you are.

Get notified

Get text, email, or Slack messages when your kid needs access to a blocked site or requests a temporary suspension of the mac internet blocker.

Suspend the filter

Temporarily allow the whole internet, while recording screenshots of their activity and everything they type with a built-in mac keylogger.

Protect the whole family

Manage all your kids with one account, sharing lists of safelisted sites when it makes sense. Only $5/month for the whole family.

Defense in depth.

In addition to internet filtering, Gertrude allows you to collect screenshots of your child’s screens, as well as a record of everything they type, for an unprecedented level of safety, redundancy, and oversight. You get to review screenshots and keystrokes on your own time, on your own device.

We clearly display that they are being watched—there‘s nothing creepy or secretive about it. This greatly increases their safety online, plus allows you to occasionally turn off the filter, safe in the knowledge that their activity is being observed.

I spent years trying out different parental control software for my four kids (on both Macs and PCs) and never found anything that made me feel peaceful and secure about my kids' online activities until I started using Gertrude.

Jason H.

We have used Gertrude for our two children for the past few years and have found it to be absolutely the most secure product available. The app makes securing children online something manageable for us as middle-aged parents with typical computer skills.

Dr. Frank A.

I take online safety very seriously. I needed a bulletproof mac internet filter for my kids. When I couldn't find anything up to my standards, I built Gertrude. I'm biased, but I think it's the best tool out there for mac website blocking and oversight with keylogging and screenshots.

Jared H.

$5/month for the whole family, with a 60 day free trial.