Comparison

Nossic Talk and AWS Wickr

Both are end-to-end encrypted messaging for organisations. They're built differently and suit different needs. Here's a factual side-by-side, including where Wickr does more.

Wickr details are from AWS's public Wickr pages (aws.amazon.com/wickr/features), checked October 2026. Features change; check there for the latest. Nossic Talk details describe it as planned for launch.

Side by side

Nossic Talk compared with AWS Wickr
	Nossic Talk	AWS Wickr
End-to-end encryption	Yes, for messages and files, including file names	Yes, for messages, calls, files, screen sharing and location sharing
Protocol	The open Matrix standard (Olm and Megolm), with the Matrix project's open-source Rust crypto	Wickr's own protocol
Direct messages and group rooms	Yes	Yes
File sharing	Yes, encrypted (size limit to be announced)	Yes, encrypted, up to 5 GB
Search	On your device; the server can't search	Not compared
Voice and video calls, screen sharing	Not yet; planned	Yes: calls of up to 100 people, screen sharing and presenter mode for up to 500
Expiring and burn-on-read messages	Not at launch	Yes: timers from 1 minute to 365 days, and burn-on-read
Device verification and key recovery	Yes: Matrix cross-signing and a recovery key for an encrypted key backup	Automatic signature verification of messages
Talking to other organisations	No: federation is off, and rooms stay within Nossic Talk	Yes: federation with other Wickr networks (can be restricted), and guest users
Compliance archive (data retention)	No: the server can't read messages, and there's no retention copy	Yes: an optional data retention service that keeps copies in storage the customer runs
Sign-in	Nossic ID	Single sign-on with Active Directory, Okta or OpenID Connect
Administration	Members and roles from Nossic Accounts; an admin API with API keys	Admin console (security groups, policies, federation controls), a REST API and bots
Where it runs	Nossic's own servers in the UK	AWS regions chosen in the AWS Management Console, AWS GovCloud (US-West), or self-hosted Wickr Enterprise
Apps	Web browser at launch; phone and desktop apps planned	Desktop and phone apps
Certifications	None yet	FedRAMP Moderate and High, DoD IL4 and IL5 (GovCloud), HIPAA eligible, ISO 27001, SOC 1, 2 and 3
Pricing	Coming soon	Per user, per month: see aws.amazon.com/wickr/pricing

Which suits you?

Wickr is the better fit if you need

Encrypted voice and video calls, or screen sharing, today
Messages that delete themselves on a timer
To keep a compliance copy of every conversation
To talk with other organisations or guests
US government certifications such as FedRAMP

Nossic Talk is the better fit if you want

Team chat for people who already use their Nossic ID
An open, published protocol rather than a proprietary one
Chats kept on UK servers, with no copies on anyone else's
No compliance copy of your messages anywhere, by design
Search that runs on your own device

AWS and Wickr are trademarks of Amazon.com, Inc. or its affiliates. Nossic isn't affiliated with or endorsed by Amazon.