Best Secure Messaging Apps (2026): 11 Private Chat Apps

Most of us share far more in chat than we'd ever put in an email: client details, passwords that shouldn't be there, photos of the kids, plans for the business. The app you use decides who else could see all of that, and whether a leak at the provider leaves your conversations exposed.

The eleven messengers below are listed alphabetically and in no particular order, and every description comes from the app's own website, read this week. If you're curious about how traceable an ordinary chat app is, my explainer on whether your chats can be traced is a useful starting point.

Secure messaging apps side by side

I checked the free plan column on each tool's own website, as of Oct 2026. Yes means the site names a free plan, a free version, a free allowance or an open source version. Trial only means a time-limited trial. Not stated means the pages I read named neither, even where there's a button inviting you to start for free, so check the vendor's page before you sign up.

Tool	Type	Good for	Free plan
AWS Wickr	Encrypted messaging for organisations	Teams already running on AWS	Not stated
Berty	Open source messenger from a non-profit	Peer-to-peer chat on its own network	Yes
Delta Chat	Decentralised, open source messenger	Chat over open internet standards	Yes
Molly	Hardened fork of an encrypted app for Android	Extra locks on an Android phone	Yes
Session	Private messenger with no phone number	Signing up without a phone number	Yes
Signal	Encrypted messaging app from a nonprofit	Everyday private chats and calls	Yes
SimpleX Chat	Messenger without any user identifiers	Chatting with no user ID at all	Yes
TeleGuard	Swiss messenger with no phone link	Swiss-hosted messaging	Not stated
Threema	Secure messenger for people and companies	A business edition alongside personal use	Not stated
WhatsApp	Mainstream private messaging and calling	Reaching people who already use it	Yes
Wire	Encrypted messenger for organisations	Secure collaboration for whole organisations	Not stated

Eleven secure messaging apps to compare

AWS Wickr

Best for: Organisations already working on AWS that want end-to-end encrypted messaging and calls with administrative controls for their IT team.

Berty

Best for: Privacy enthusiasts who like the idea of a non-profit, open source messenger built on its own peer-to-peer network protocol.

Delta Chat

Best for: Groups who want a decentralised messenger built on internet standards, with multi-device support and audited end-to-end encryption.

Molly

Best for: Android users who want a hardened version of a popular encrypted messenger, with passphrase database encryption, automatic locking and scheduled backups.

Session

Best for: Anyone who doesn't want to hand over a phone number or email address just to start a private conversation.

Signal

Best for: Friends, families and colleagues who want a widely used encrypted messenger run by an independent nonprofit rather than a big tech firm.

SimpleX Chat

Best for: Privacy-first users who want a messaging network with no user identifiers at all, so contacts can't be linked to an account.

TeleGuard

Best for: People who prefer a messenger with servers in Swiss data centres and no connection to their telephone number.

Threema

Best for: Companies that want one secure messenger for staff, with a separate work edition, and individuals who want the same app at home.

WhatsApp

Best for: Small businesses and families who need to reach people where they already are, with private messaging and calling built in.

Wire

Best for: Organisations that want encrypted messaging, conferencing and file sharing in one European, open source collaboration app.

Where to start for your situation

• Everyday chats with friends and family: Signal or WhatsApp.
• Signing up without a phone number: Session or SimpleX Chat.
• A secure messenger for your whole organisation: Wire, Threema or AWS Wickr.
• Extra locks on an Android phone: Molly.
• Decentralised chat built on open standards: Delta Chat or Berty.
• Servers in Switzerland: TeleGuard.

What end-to-end encryption means for your chats

The Electronic Frontier Foundation's Surveillance Self-Defense guide explains that with end-to-end encryption, a message is turned into a secret message by the person who sends it and decoded only by the person who receives it. Nobody in between, including the company running the service, can read it.

That's the first thing to check. After that, look at what the app still knows about you, such as your phone number, your contacts and when you were online, because encrypted messages can still leave a trail of who talked to whom.

Personal messengers versus business editions

Personal apps are built for friends and family. They're simple to install, and the people you want to reach may already have one of them on their phone.

Business editions add admin controls, so a manager can add and remove staff, enforce settings and keep company conversations separate from personal ones. If clients or confidential projects are involved, that separation matters more than any single feature.

Questions to ask before you switch messaging app

1. Is end-to-end encryption switched on by default for every chat?
2. Do I need a phone number or email address to sign up?
3. Which countries are the servers in?
4. Can I manage staff accounts centrally?
5. Will the people I need to reach install it?
6. How are chat backups stored and protected?

Signs it's time for a more private messenger

• Client details sit in personal chats. Move them to a work account.
• You don't know who can read your messages. Check the encryption.
• Staff leave with company conversations. Use admin controls.
• You'd rather not share your number. Try an app that doesn't need it.

Do you make a secure messaging or chat app? Tool makers can ask to be considered for a featured place on this list.

My plain advice on choosing a secure messaging app

Pick the app the people you talk to most will install, then check its encryption is on by default. A brilliant messenger nobody joins doesn't protect anything, because the conversation simply moves back to whichever app everyone already uses.

For business chats, keep client conversations in a work account you control rather than on your personal phone number. And if your team's moving away from an older app, my notes on who owns the biggest chat app explain why ownership is worth knowing about.

Frequently asked questions

What is a secure messaging app?

A secure messaging app uses end-to-end encryption so only the sender and the recipient can read messages, with the provider unable to see their content.

Are secure messaging apps free?

Several are free or open source, and others charge for business editions. The free plan column above shows what each app's own site says.

Do I need a phone number for a secure messenger?

Not always. Some apps let you sign up with an account ID instead of a phone number or email address.

Is end-to-end encryption enough on its own?

It protects what you say, but the app may still hold details such as who you talk to and when. Check what it stores as well.

Can I use a secure messaging app for my business?

Yes. Several offer business or organisation editions with admin controls for adding staff and managing settings.

Will I lose my chat history if I switch app?

Usually your old chats stay in the old app. Plan the move with your contacts and keep the old app until everyone has joined the new one.