Citadel Team review

Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Citadel Team brings secure messaging and calling together for professional communities and organisations. Its feature set includes direct and group messaging, open and private chat rooms, file, photo and video sharing, phone calls, and audio and video conferences. End-to-end encryption is available for calls and audio conferences, while the service also includes two-factor authentication. Web, Windows, macOS, iOS and Android access makes it relevant to teams that need to communicate across desktop and mobile devices. It is aimed at organisations of different sizes, from small businesses to enterprise teams, rather than only personal callers.

The conferencing tools are a notable part of the offer: users can hold audio and video conferences and share screens during conferences, alongside direct calls and chat. That breadth may suit teams looking to keep conversations, shared files and meetings within one communications service. Thales describes Citadel Team as a SaaS service hosted in French datacentres or in a SecNumCloud environment. This hosting approach is distinct from customer self-hosting, which is not established here. Organisations that require their own deployment should assess that requirement before choosing Citadel Team.

The official app listings describe account creation and calls or conferences as free, so teams can consider it without an upfront charge for those functions. Thales also describes a professional SaaS service, but the published product information does not give paid plan prices or a tier-by-tier breakdown. Support channels include email and documentation. A key point for buyers planning larger meetings is that the group-call participant limit is not specified. Citadel Team is a plausible fit for teams prioritising encrypted calling, messaging and broad device access; buyers who need a stated meeting capacity, customer-controlled hosting or a clear paid-plan comparison should evaluate alternatives against those requirements.

Citadel Team pros and cons

• Where it wins
  • End-to-end encrypted phone calls and audio conferences
  • Audio and video conferencing with screen sharing
  • Messaging and file sharing across web, desktop and mobile
• Where it doesn't
  • Group-call participant limit is not stated
  • No verified customer self-hosting option
  • No published paid-plan prices

Citadel Team fact sheet, pricing and score →

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Last updated 21 Oct 2026 · How we research and update