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Best Secure Team Chat Software in 2026

Secure team chat software is intended for workplace conversations where collaboration and control over access and records both matter. Compare end-to-end encryption, audit logs, and SSO support, then weigh message retention, guest access, and file sharing against your team’s needs. Mobile apps, free plans, and paid-from pricing add further points of comparison. Rocket.Chat, Wire, and 8seats are among the entries, alongside Troop Messenger and Element. Consider which security controls and everyday communication features are relevant to the way your organization chats.

  1. 1

    Rocket.Chat

    by Rocket.Chat
    Free plan Open source AndroidAPIiPhone+5

    Rocket.Chat offers core messaging features on a free plan, with named options describing additional deployment and administrative choices.

    8.8 Free plan Visit site
  2. 2

    8seats

    Free plan AndroidiPhoneMac+2

    8seats combines several team messaging formats with phone-number onboarding and multi-location administration.

    7.7 Free plan · paid from $2.99/user/mo Visit site
  3. 3

    Crypho

    Free plan AndroidiPhoneMac+2

    Crypho combines encrypted messaging, file sharing, and video conferencing with group and organizational controls.

    7.5 Free plan · paid from €379/mo Visit site
  4. 4

    Diode Collab

    Free plan AndroidiPhoneLinux+2

    Choose Diode Collab if your group wants messaging, file sharing, and remote access in one cross-platform app, with unlimited users and storage listed on all plans.

    7.5 Free plan Visit site
  5. 5

    Element

    by Element
    Free plan AndroidiPhoneLinux+4

    Element combines broad platform availability, guest access and unlimited message history. Its self-hosted option and integrations may appeal to organizations, while plan prices are not listed.

    7.5 Free plan Visit site
  6. 6

    Eleven for Business

    Free plan AndroidiPhoneMac+2

    Eleven for Business offers encrypted team chat, client invitations, and a no-charge self-hosting option.

    7.5 Free plan · paid from €11/user/yr Visit site
  7. 7

    Celo

    Free plan AndroidiPhoneWeb

    Celo combines team messaging and patient-specific collaboration with clinical note generation and external chat options. Teams should check plan user caps and confirm which paid features they need.

    7.4 Free plan · paid from $49/mo (annual) · 14-day trial Visit site
  8. 8

    eXpress

    Free plan AndroidExtensioniPhone+5

    eXpress combines messaging, conferencing, and employee access to business systems, with deployment choices for corporate customers.

    7.4 Free plan · 30-day trial Visit site
  9. 9

    Mattermost

    by Mattermost
    Free plan AndroidiPhoneLinux+4
    7.3 Free plan Visit site
  10. 10

    LockChat

    Free plan AndroidiPhoneSelf-hosted

    Choose LockChat if your organisation needs encrypted mobile messaging together with enterprise administration and chat recording or audits.

    7.2 Free plan · 14-day trial Visit site
  11. 11

    Secretly for Teams

    Free plan AndroidiPhoneMac+1

    Secretly for Teams pairs encrypted communication with organization-level membership and policy controls.

    7.2 Free plan · pricing on request · 30-day trial Visit site
  12. 12

    Troop Messenger

    by Troop Messenger
    Free plan AndroidiPhoneLinux+3

    Troop Messenger offers team messaging across desktop and mobile platforms, with guest access and several listed integrations.

    7.0 From $2.50/user/mo · 7-day trial Visit site
  13. 13

    Wire

    by Wire
    Free plan AndroidiPhoneLinux+3

    Wire brings messaging, conferencing and file collaboration together, with deployment choices that include offline or air-gapped on-premises environments.

    6.9 Free plan · paid from €7.45/user/mo (annual) Visit site
  14. 14

    KeeperChat

    Free plan AndroidiPhoneMac+1

    Choose KeeperChat for personal use if you want the free plan with default end-to-end encryption on a supported platform.

    6.7 Free plan Visit site
  15. 15

    AWS Wickr

    Free trial AndroidiPhoneLinux+3

    AWS Wickr combines encrypted communication, expiring content, collaboration calls, and enterprise controls across major platforms.

    6.6 From $5/user/mo Visit site
  16. 16

    Brosix

    by Brosix
    Paid AndroidiPhoneLinux+3

    Brosix offers channels, guest access, and a broad platform and integration list. Teams should weigh its limited message history and paid pricing against their needs.

    6.0 From $6/user/mo (annual) · 14-day trial Visit site
  17. 17

    Softros LAN Messenger

    by Softros LAN Messenger
    Free trial AndroidAPIMac+2

    Softros LAN Messenger focuses on internal communication without requiring a server.

    6.0 From $12.95/user · 30-day trial Visit site
  18. 18

    Teamwire

    by Teamwire
    Free trial AndroidAPIiPhone+5

    Teamwire pairs business messaging with calling and alerting tools for teams coordinating important work. The Standard plan has a 25-user minimum, and hosting options vary by plan.

    5.9 From €3.45/user/mo (annual) · 15-day trial Visit site
  19. 19

    Threema

    Free trial AndroidAPIiPhone+5

    Threema combines encrypted messaging, open-source clients, and business integration options.

    5.9 From 6 · 30-day trial Visit site
  20. 20

    KChat Work

    Paid AndroidAPIiPhone+2

    KChat Work combines encrypted communication, storage, administration, and account separation in one service.

    5.8 From $3.99/user/mo Visit site
  21. 21

    Yay.com Business Instant Messaging

    Free trial AndroidiPhoneLinux+3

    Yay.com brings business messaging and VoIP calling together across mobile, desktop, and web platforms.

    5.8 14-day trial Visit site
  22. 22

    Indryve Converse

    Paid AndroidiPhoneWeb

    Converse combines organizational messaging with identity, room, and history controls, plus several deployment options.

    5.6 From $4/user/mo (annual) Visit site
  23. 23

    Care Thread

    Paid AndroidiPhoneWeb

    Healthcare organizations coordinating care across clinical teams should consider Care Thread for its patient-centered messaging, clinical updates, task tracking, and handoff summaries.

    5.5 Pricing on request Visit site
  24. 24

    Spok Secure Messaging

    Paid AndroidiPhoneMac+1

    Choose Spok Secure Messaging if your healthcare organization needs team messaging tied to clinical systems, on-call schedules, and auditable communications.

    5.5 Pricing on request Visit site
  25. 25

    Orion Health Communicate

    Paid APIWeb

    Communicate combines secure messaging with clinical document sharing and public health exchanges.

    5.4 Pricing on request Visit site

#1Places #1, #2, #3, #4, #5 on this list can be bought by the makers of the software on it. See the price

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