How we make this list: we compare pricing pages, product documentation and public user reviews. Ratings come from G2, Capterra or Trustpilot, with the date we checked them.
Best secure messaging apps at a glance
Signal is the best secure messaging app for most people because it encrypts every message and call end to end by default, collects very little metadata, and is free with no paid tier. WhatsApp is the practical alternative because most contacts already use it, though its owner Meta collects metadata about who you message and when.
Key takeaways
- Signal offers the strongest default privacy here: end-to-end encryption for every chat and call, open-source code, and almost no metadata collection, all free.
- WhatsApp matches Signal on message encryption but differs on metadata, since Meta records who you contact and when.
- Telegram is not end-to-end encrypted by default. Only one-to-one Secret Chats use end-to-end encryption, and they do not sync across devices.
- For business use, Threema Work and Wire add admin controls that consumer apps lack, including central user management.
- No app here makes you fully anonymous or untraceable. Device security and backups still matter.
Secure messaging apps compared
| App |
End-to-end encryption by default |
Phone number needed |
Open source |
Starting price |
Best for |
| Signal |
Yes, all chats and calls |
Yes, to register |
Yes |
Free |
Personal privacy |
| WhatsApp |
Yes, personal chats and calls |
Yes |
No |
Free; Business Platform usage-based |
Reaching most contacts |
| Telegram |
No, Secret Chats only |
Yes |
Partly, clients only |
Free; Premium $4.99 per month reported |
Large groups and channels |
| Threema |
Yes, all chats and calls |
No |
Yes, clients |
$6.00 one-time reported; Work from $3.00 per user per month |
Privacy without a phone number |
| Wire |
Yes, all chats and calls |
No, email or username |
Yes |
Free personal; SMB 7.45 euros per user per month reported |
Regulated business teams |
| Session |
Yes, with limits noted below |
No |
Yes |
Free |
Number-free messaging |
| Element |
Yes, on Matrix |
No, homeserver account |
Yes |
Free app; Enterprise quote only |
Self-hosted team chat |
| Viber |
Yes, for private chats and 1:1 calls |
Yes |
No |
Free; Viber Out paid credit |
Everyday calls and chats |
Which secure messaging app is the most private?
Signal is the most private app in this list for ordinary use. It encrypts messages, calls, group chats, and media end to end by default, keeps very little metadata, and does not run ads or sell data. Its code is open source, and a nonprofit funded by donations runs the project. Threema and Session go further on signup privacy because neither asks for a phone number, but both have smaller networks.
What does end-to-end encryption actually protect?
End-to-end encryption protects message content while it travels between devices and while it sits on a server. Only the sender and the recipient hold the keys, so the service provider cannot read the messages. It does not hide metadata such as who messaged whom and when. It does not protect messages on a lost or unlocked phone. Backups are a separate risk: a cloud backup may not carry the same encryption as the chat itself unless you turn on an encrypted backup option.
Which secure messaging app is best for business use?
Threema Work and Wire are the strongest business picks here because they combine default end-to-end encryption with central administration. Threema Work offers central user management and a self-hosted OnPrem option. Wire adds single sign-on, SCIM provisioning, and guest access. Element suits organizations that want to self-host on Matrix. WhatsApp Business Platform fits customer messaging at scale, but pricing is usage-based and varies by country and message type.
Quick comparison
| Tool | Best for | Starting price | Free plan |
|---|
 Signal | People who want the strongest default privacy with no cost and no ads | Free, with no paid tier, checked 13 Nov 2026 | Yes, the full app is free |
 WhatsApp | Reaching the most contacts with default encryption already switched on | Free for the WhatsApp and WhatsApp Business apps; WhatsApp Business Platform billed per message at rates that vary by country and message category, checked 13 Nov 2026 | Yes, the consumer and small-business apps are free |
 Telegram | Large public groups, channels, and file sharing where default encryption is not the priority | Free; Telegram Premium $4.99 per month in US app stores, third-party reported, price varies by country and purchase channel, checked 13 Nov 2026 | Yes, core messaging is free |
 Threema | People and organizations that want strong privacy without handing over a phone number | Threema Private about $6.00 one-time, price varies by app store and country, third-party reported; Threema Work Core $3.00 per user per month and Professional $5.00 per user per month, vendor pricing page checked 13 Nov 2026 | No free tier for the private app; Threema Work offers a trial |
 Wire | Business and regulated teams that need default encryption plus admin controls | Free for personal use; Wire SMB 7.45 euros per user per month billed annually, 8.94 euros billed monthly, third-party reported from the vendor pricing page; Enterprise quote only, checked 13 Nov 2026 | Yes, free for personal use and for teams of up to 5 people |
 Session | Number-free messaging where hiding metadata matters more than reach | Free, checked 13 Nov 2026; an optional Session Pro tier was reported at $2.99 per month, but its launch was reported paused in October 2026, so treat Pro pricing as unconfirmed | Yes, messaging, groups, and file sharing are free |
 Element | Organizations that want to self-host messaging on the open Matrix standard | Free app and free Community server edition; Enterprise and Sovereign editions quote only with no published price, checked 13 Nov 2026 | Yes, the app is free for personal use, and Element Server Suite Community is free for self-hosting up to 100 users |
 Viber | Everyday free calls and chats, especially where contacts already use Viber | Free for Viber-to-Viber messages and calls; Viber Out calls to ordinary phone numbers use paid credit at per-minute rates that vary by destination, checked 13 Nov 2026 | Yes, Viber-to-Viber messaging and calling are free |
Is your product missing or out of date?
We review this list regularly. Vendors can request a listing, send updated pricing or ask about featured placement.
The 8 best secure messaging apps compared
#1Signal
Best for: People who want the strongest default privacy with no cost and no ads4.4/5 on
G2 (453 reviews, checked Oct 2026)
Visit signal.org
Starting priceFree, with no paid tier, checked 13 Nov 2026
Free planYes, the full app is free
Signal is the benchmark other secure messaging apps are measured against. It is run by the Signal Technology Foundation, a nonprofit funded by donations. Messages, calls, group chats, photos, and files are all end-to-end encrypted by default using the Signal Protocol. Apps run on Android, iOS, Windows, macOS, and Linux, and the code is open source. The main limits are reach and signup: you need a phone number to register, and moving a whole team takes effort.
What we like- End-to-end encryption on every message, call, and group by default
- Open-source code
- Very little metadata collection
- Disappearing messages and usernames that hide your phone number
Watch out for- Registration still needs a phone number, even though usernames can hide it afterwards
- The network is smaller than WhatsApp
- The desktop app must be linked to a phone and cannot register alone
#2WhatsApp
Best for: Reaching the most contacts with default encryption already switched on4.6/5 on
G2 (250 reviews, checked Oct 2026)
Visit whatsapp.com
Starting priceFree for the WhatsApp and WhatsApp Business apps; WhatsApp Business Platform billed per message at rates that vary by country and message category, checked 13 Nov 2026
Free planYes, the consumer and small-business apps are free
WhatsApp is the practical secure messaging choice because of its reach. Personal messages, calls, photos, videos, and group chats are end-to-end encrypted by default with the Signal Protocol, and encryption cannot be switched off for those chats. The trade-off is metadata: WhatsApp is owned by Meta, which collects data about messaging patterns, contacts, and devices. The WhatsApp Business Platform is a separate API product with per-message pricing that varies by country and category, so check Meta's current rate card before budgeting.
What we like- End-to-end encryption on personal messages, calls, and groups by default using the Signal Protocol
- Almost everyone already has it
- Voice and video calls and communities included
Watch out for- Owner Meta collects metadata about who you contact, when, and how often
- Chat backups are not end-to-end encrypted unless you turn that option on
- Chats with businesses that use certain Meta services are not always treated as end-to-end encrypted
#3
Telegram
Best for: Large public groups, channels, and file sharing where default encryption is not the priority
Visit telegram.org
Starting priceFree; Telegram Premium $4.99 per month in US app stores, third-party reported, price varies by country and purchase channel, checked 13 Nov 2026
Free planYes, core messaging is free
Telegram is often described as a secure messaging app, but its default setting tells a different story. Normal chats, groups, and channels are cloud chats: they use server-client encryption, and Telegram stores the history so it can sync across devices. Only Secret Chats add end-to-end encryption, and those are one-to-one, tied to the device where they started, and lost if you log out. There is no end-to-end encrypted group chat. Use Secret Chats, or another app here, when content must stay private.
What we like- Fast cloud sync across every device
- Groups and channels at very large scale
- File sharing up to 2 GB per file, 4 GB with Premium
- Secret Chats with self-destruct timers
Watch out for- Ordinary cloud chats are not end-to-end encrypted, so Telegram holds data readable on its servers
- Secret Chats work only between two people on one device each and do not sync
- The MTProto protocol is Telegram's own design rather than a widely shared open standard
#4
Threema
Best for: People and organizations that want strong privacy without handing over a phone number
Visit threema.com
Starting priceThreema Private about $6.00 one-time, price varies by app store and country, third-party reported; Threema Work Core $3.00 per user per month and Professional $5.00 per user per month, vendor pricing page checked 13 Nov 2026
Free planNo free tier for the private app; Threema Work offers a trial
Threema is a Swiss messenger built around collecting as little data as possible. You register without a phone number or email address and receive a random Threema ID, and messages are end-to-end encrypted by default. Servers delete messages after delivery, and the client code is open source. Threema Work adds central management, and OnPrem lets an organization self-host. The drawback is reach: because the private app costs money, contacts are less likely to have it.
What we like- No phone number or email needed, you get a random Threema ID
- End-to-end encryption by default
- Servers delete messages after delivery
- Business plans add central management and a self-hosted option
Watch out for- The private app is a paid purchase, which slows adoption because every contact must also buy it
- The network is much smaller than Signal or WhatsApp
- Researchers at ETH Zurich reported protocol issues in 2023 that Threema patched
#5Wire
Best for: Business and regulated teams that need default encryption plus admin controls4.2/5 on
G2 (62 reviews, checked Oct 2026)
Visit wire.com
Starting priceFree for personal use; Wire SMB 7.45 euros per user per month billed annually, 8.94 euros billed monthly, third-party reported from the vendor pricing page; Enterprise quote only, checked 13 Nov 2026
Free planYes, free for personal use and for teams of up to 5 people
Wire wraps Signal-grade encryption in a business product. It uses the Proteus protocol, derived from the Signal Protocol, and encrypts messages, calls, and files by default. Paid plans add single sign-on, provisioning, and guest roles. The cost is the main friction: once a team passes 5 people and needs admin features, the per-seat price applies to every user, and organizations above 100 seats move to a custom Enterprise quote.
What we like- End-to-end encryption on messages, calls, and files by default with no way to switch it off
- Single sign-on, SCIM provisioning, and guest access on paid plans
- Cloud, private cloud, and on-premises options
Watch out for- The paid SMB plan costs real money per seat for what is mainly a messaging tool
- The free team plan stops at 5 people
- Enterprise pricing is not published, so larger teams must go through sales
- The consumer network is small
#6
Session
Best for: Number-free messaging where hiding metadata matters more than reach
Visit getsession.org
Starting priceFree, checked 13 Nov 2026; an optional Session Pro tier was reported at $2.99 per month, but its launch was reported paused in October 2026, so treat Pro pricing as unconfirmed
Free planYes, messaging, groups, and file sharing are free
Session takes a different approach from every other app here. There is no central server holding your account: your device generates an Account ID, messages are onion-routed through community-run nodes, and nodes hold each message until collected. That design hides more metadata than a centralized messenger can. The trade-offs are real: perfect forward secrecy is missing until Protocol V2, and funding trouble paused development in early 2026.
What we like- No phone number or email needed, you get a random Account ID
- Onion routing through community-run nodes so no single node sees both sender and receiver
- Open-source code with a published audit by Quarkslab
Watch out for- The current protocol lacks perfect forward secrecy until Session Protocol V2 arrives, according to Session's own FAQ reporting
- Development paused in early 2026 over funding and resumed with a small team
- Losing your recovery phrase means losing the account
#7Element
Best for: Organizations that want to self-host messaging on the open Matrix standard4.2/5 on
G2 (43 reviews, checked Oct 2026)
Visit element.io
Starting priceFree app and free Community server edition; Enterprise and Sovereign editions quote only with no published price, checked 13 Nov 2026
Free planYes, the app is free for personal use, and Element Server Suite Community is free for self-hosting up to 100 users
Element is the main client for Matrix, an open standard for decentralized communication. Matrix is a network of homeservers that federate, and Element provides the chat, voice, and video apps. Individuals can use the free app on a public homeserver; organizations self-host with Element Server Suite, free for up to 100 users in Community, with paid Pro editions adding oversight and support. The cost of that control is complexity, since running a homeserver well takes skill.
What we like- Built on Matrix, an open federated standard, so servers can talk to each other
- End-to-end encryption with open-source code
- Self-hosting keeps data on your own infrastructure
- Air-gapped Sovereign option
Watch out for- Self-hosting needs technical skill and ongoing maintenance
- Security and reliability depend on which homeserver you use
- The Enterprise edition starts at 100 users, which excludes small teams from paid support
#8Viber
Best for: Everyday free calls and chats, especially where contacts already use Viber4.4/5 on
Capterra (4,064 reviews, checked Oct 2026)
Visit viber.com
Starting priceFree for Viber-to-Viber messages and calls; Viber Out calls to ordinary phone numbers use paid credit at per-minute rates that vary by destination, checked 13 Nov 2026
Free planYes, Viber-to-Viber messaging and calling are free
Viber, owned by Rakuten, is a mainstream messaging app with better default encryption than many people expect. Private one-to-one chats, group chats, and one-to-one calls are end-to-end encrypted by default, and Viber-to-Viber communication is free. Paid Viber Out credit covers calls to ordinary phone numbers. Viber is closed source, and Communities, Channels, bot chats, group calls, and Viber Out sit outside end-to-end encryption.
What we like- End-to-end encryption by default for one-to-one chats, group chats, and one-to-one calls
- Free voice and video calls with desktop apps
- Disappearing messages
- Large user base
Watch out for- Viber is closed source, so its encryption cannot be independently audited from code
- Communities, Channels, bot chats, group calls, and Viber Out calls are not end-to-end encrypted
- Signup needs a phone number
How we chose these secure messaging apps
We checked vendor homepages, help pages, and pricing pages on 13 Nov 2026. Signal's download page and Threema's business page were opened directly; other vendor details rest on search evidence, and prices marked as reported should be confirmed with the vendor. Every app listed had to offer end-to-end encryption for at least some chats, have a working official site, and be currently available. We excluded Wickr Me because AWS discontinued the consumer app on 31 Dec 2023, and we did not list AWS Wickr because it is enterprise-only. We did not run hands-on security tests, and no app here is presented as fully anonymous or untraceable.
How to pick the right secure messaging app
- Start with who you need to reach. A secure app fails if your contacts refuse to install it, so check which apps your team, family, or clients already use.
- Decide whether default encryption is required. If yes, pick Signal, WhatsApp, Threema, Wire, Session, Element, or Viber private chats, and avoid relying on Telegram cloud chats.
- Decide whether a phone number is acceptable. If not, shortlist Threema, Session, Element, and Wire, which do not require one.
- For business use, list the admin controls you need first, then compare Threema Work, Wire, and Element against that list.
- Turn on encrypted backups and disappearing messages where offered, verify security codes with important contacts, and recheck prices before paying.
Frequently asked questions
Which messaging app is the most secure?
Signal is the most secure messaging app for most people. It encrypts every message, call, and group chat end to end by default, collects very little metadata, runs as a nonprofit without ads, and publishes open-source code. Threema and Session offer stronger signup privacy because neither needs a phone number, but their smaller networks make them harder to use.
Is WhatsApp more secure than Telegram?
For message content, yes. WhatsApp encrypts personal messages, calls, and group chats end to end by default using the Signal Protocol, while Telegram encrypts only Secret Chats end to end, and those work solely between two people on one device each. Telegram's ordinary cloud chats are stored on its servers.
Can I use a secure messaging app without a phone number?
Yes. Threema gives you a random ID with no phone number or email, Session gives you a random Account ID, Element uses a homeserver account, and Wire lets you register with an email address or username. Signal, WhatsApp, Telegram, and Viber all require a phone number to register, although Signal usernames can hide your number afterwards.
Are free secure messaging apps safe to use?
Free does not mean unsafe, but the funding model matters. Signal is free because a nonprofit funds it through donations, Session is free through a foundation, and Element earns from server products. WhatsApp and Viber are free because large companies fund them. Check who funds an app before trusting it.
Can my employer read my messages on these apps?
It depends on the app and the device. Consumer apps such as Signal and WhatsApp give an employer no admin access to message content, but a managed work phone may allow the employer to see the device, and business products such as Threema Work, Wire, and Element give administrators user management controls. Never assume a work device is private.
Sources we checked (14)
- https://support.signal.org/hc/en-us/articles/360008216551-Installing-Signal
- https://www.lilachbullock.com/what-does-end-to-end-encrypted-mean-on-whatsapp/
- https://sendseven.com/en/glossary/conversation-based-pricing
- https://www.telegramdirectory.tech/articles/telegram-secret-chats-explained
- https://giftclub.app/blog/telegram-premium-price
- https://threema.com/en/business-communication
- https://umatechnology.org/platforms/threema/pricing/
- https://www.europeanapps.com/wire/
- https://softwarefinder.com/collaboration-productivity-software/wire
- https://getsession.org/faq
- https://privacygear.nl/en/guides/session-chat-guide/
- https://toolgpa.com/tools/element
- https://www.europeanapps.com/element/
- https://nicegear.co.nz/viber-review/
Is your product missing or out of date?
We review this list regularly. Vendors can request a listing, send updated pricing or ask about featured placement.
Shihab Mia · Founder, Rankite
Shihab has 5+ years in B2B and SaaS SEO. He writes Rankite's software buying guides from pricing pages, documentation and public user reviews. More about Shihab.