7 Secret Messaging Apps Your Child Might Be Using

By Andrea Nelson
May 1, 2025
Teen using secret messaging apps on phone

It’s amazing the amount of energy some kids put into communicating with their friends in secret. (If only they put that same effort into their school work, am I right?) From disappearing messages to fake calculator apps that hide chats, secret messaging apps can expose your child to risks you won’t see coming. We’ll go over how to spot these hidden messaging apps and what to do if you think your child’s using one. 

What are secret messaging apps?

Secret messaging apps are apps that disguise, delete, or encrypt messages so that outsiders — like parents — can’t easily view them. These apps range from well-known platforms with privacy features to apps that literally look like calculators but hide hidden message vaults.

What secret messaging apps do kids use

App NameKey FeaturesParental Concerns
SnapchatDisappearing messages, Stories, Snap MapDifficult to monitor, location sharing, exposure to strangers
Google DocsReal-time chat via shared documentsEasy to delete messages, not obviously suspicious
NotesPrivate chats shared via synced Notes or screenshotsSimple interface hides secret communication
DustEnd-to-end encryption, unsend feature, screenshot detectionDesigned to erase message trails
Fake calculator appsLooks like a calculator; unlocks a vault with a passcodeHides messages, photos, and videos completely
CoverMeVault, hidden contacts, encrypted messagingSpecifically built for secrecy
Whisper MSGBlockchain encryption, self-destructing messagesPromotes anonymous, untraceable communication

Some secret messaging apps your child might be using include:

Snapchat

Snapchat is by far the most popular app on this list among teens. It’s also one of the most worrisome. By default, messages disappear after 24 hours, making them hard for parents to monitor. Because it’s also a social media platform, the app can potentially expose kids to strangers, including predators and drug dealers

Google Docs

You read that right. Kids are using the humble Google Doc as a way to send messages under the radar. First, they add a friend as a collaborator on a doc. Then, when either of them types something into the document, they can both see it in real time. They then delete the message, erasing any evidence. 

Notes

Using the same method as with Google Docs, kids also employ the Notes app on the iPhone to subvert parental attention. 

Dust

Dust is a private messaging app with end-to-end encryption, disappearing messages, the ability to unsend messages, and screenshot detection. 

Ghost calculators 

So-called “ghost apps” look innocent but are designed to hide a user’s activity. The most common camouflage for secret messaging apps is a calculator. 

Apps like Casper Calculator and Calculator Pro+ appear as ordinary calculators, and function like one, too. But when a user inputs the right code, a vault of hidden messages, photos, and videos is revealed. And you thought your child was just doing their math homework! 

CoverMe

CoverMe is a private messaging app with a secret, encrypted vault that's designed to keep messages, notes, and contacts under an impenetrable digital lock and key. 

Whisper MSG

This private messaging app uses secure blockchain technology to encrypt messages. Whisper also includes a self-destruct option for messages. 

How to tell if your child is using secret messaging apps 

Here are some methods you can use to figure out if your child is using a secret messaging app. 

  • Look for duplicate apps: Keep an eye out for multiple calculators and notetaking apps, as these are common ways secret messaging apps are hidden. 
  • Search the app store: Open your child’s Google Play or Apple Store and search for keywords like “vault apps,” “hidden apps,” or “secret messages.” If you see “open” or “uninstall,” that means it’s currently on their phone. 
  • Check an app's memory size: Especially for ghost apps, it can be hard to spot trouble just by looking at the icon on your child’s phone. Look instead at the memory size. A simple app like a calculator that’s larger than 30MB could be hiding something. 
  • Watch their behavior: Your child might be trying to hide something from you if you notice sudden behavior changes, including hiding screens, asking for more privacy, or using their device more frequently than normal.

What should I do if my child uses a secret messaging app?

If you discover your child is using a secret messaging app, here’s how to handle it:

  1. Have an open conversation. Ask them why they decided to use the app and what they get out of it. Listen to their answers without judgement. Explain your concerns and your desire to keep them safe.
  2. Help them understand the risks. Be clear on the dangers of secret communication, including the risks from sending and receiving inappropriate content, sexting, and communicating with strangers. 
  3. Set a plan to keep them safe. Discuss expectations for their behavior online, including not hiding activity from you, and put it in writing with a digital device contract
  4. Use a monitoring app. An app like BrightCanary can help keep your child safe on their device by monitoring their activity and alerting you to any issues. It’s important to be transparent about your plan to monitor them so that trust isn’t lost. Let them know your goal isn’t to spy on them, but to help them stay safe. 

Final word

There are many secret messaging apps kids use to communicate with their friends, including otherwise innocuous apps like Google Docs and apps disguised as other things like calculators. Because of the dangers to kids, parents should monitor their child for signs they’re using secret messaging apps. 

BrightCanary uses advanced technology to scan your child’s messages and alert you to red flags. Download it from the App Store and start your free trial today.

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