The closest Kaymera App alternatives are Cryptify Call, Silent Circle Silent Phone and Mimecast Collaboration Threat Protection. Picking a Kaymera App alternative comes down to fit: Secure Collaboration & Messaging coverage, your environment, your integrations and your budget. So each option below shows what it covers, how it deploys, its pricing model and the company behind it.
16 alternativesClosest matches: Cryptify Call, Silent Circle Silent Phone, Mimecast Collaboration Threat ProtectionPage updated Nov 2026
The product
by Kaymera
Mobile app for encrypted voice calls & messaging with no server data storage.
Kaymera App is a free Secure Collaboration & Messaging solution made by Kaymera. The closest matches by shared tags and NIST CSF 2.0 coverage are Cryptify Call, Silent Circle Silent Phone, Mimecast Collaboration Threat Protection, Armour Mobile, and CommuniTake IntactDialog. All 16 alternatives on this page are ranked the same way.
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VisitThese 8 solutions overlap most with Kaymera App. Each row says what the product does and, when the overlap is big enough, which capabilities it shares.
On-premises encrypted voice, video, and messaging platform for governments and enterprises
Key features: 10 listed. See them on the Cryptify Call page.
View Cryptify CallCryptify Call alternativesKaymera App vs Cryptify Call
On-premises encrypted voice, video, and messaging platform for governments and enterprises
Encrypted voice, video, messaging & file transfer app for Android & iOS.
Secures Microsoft Teams, SharePoint & OneDrive from malware and phishing
Secure mobile comms platform for defence, approved to NATO Restricted/OFFICIAL SENSITIVE.
Encrypted mobile voice & messaging app for enterprise secure comms.
Quantum-proof encrypted enterprise messaging, voice, video & AI platform.
Swiss-hosted secure email, messaging, and VPN suite for private comms.
Encrypted enterprise messaging solution within the SalaX Secure Collaboration suite.
E2E-encrypted messaging, calls & file collaboration for enterprise/gov.
Instantly de-risk your interactions with your clients and remote team
UK firm building secure collaboration solutions for government and defence organisations
Monitors and secures corporate messaging apps with DLP, URL policies, and audit controls
Detects malicious content and URLs in Microsoft Teams and Slack messages.
Workspace security platform for detecting phishing and impersonation attacks
Licensed secure communications desktop app for Windows 10.
Encrypted desktop IP phone solution using Yealink hardware with ShieldIT.
Common questions when weighing alternatives to Kaymera App.
The closest matches to Kaymera App by shared tags and NIST CSF 2.0 coverage are Cryptify Call, Silent Circle Silent Phone, Mimecast Collaboration Threat Protection, Armour Mobile, and CommuniTake IntactDialog. All of them are Secure Collaboration & Messaging products.
This page shows 16 alternatives to Kaymera App, all in the Secure Collaboration & Messaging category. Each one is matched on shared tags and NIST CSF 2.0 areas, and the closest matches rank first.
Kaymera App is a free Secure Collaboration & Messaging product. You can use it at no cost. Only commercial alternatives are listed here. Free and open source products are under /free.
Kaymera App is a Secure Collaboration & Messaging product in the Email & Messaging Security category. You can compare it with the 16 other Secure Collaboration & Messaging products on this page.
Encrypted voice, video, messaging & file transfer app for Android & iOS.
Key features: 9 listed. See them on the Silent Circle Silent Phone page.
View Silent Circle Silent PhoneSilent Circle Silent Phone alternativesKaymera App vs Silent Circle Silent Phone
Secures Microsoft Teams, SharePoint & OneDrive from malware and phishing
Key features: 8 listed. See them on the Mimecast Collaboration Threat Protection page.
View Mimecast Collaboration Threat ProtectionMimecast Collaboration Threat Protection alternativesKaymera App vs Mimecast Collaboration Threat Protection
Secure mobile comms platform for defence, approved to NATO Restricted/OFFICIAL SENSITIVE.
Key features: 10 listed. See them on the Armour Mobile page.
View Armour MobileArmour Mobile alternativesKaymera App vs Armour Mobile
Encrypted mobile voice & messaging app for enterprise secure comms.
Key features: 10 listed. See them on the CommuniTake IntactDialog page.
View CommuniTake IntactDialogCommuniTake IntactDialog alternativesKaymera App vs CommuniTake IntactDialog
Quantum-proof encrypted enterprise messaging, voice, video & AI platform.
Key features: 10 listed. See them on the NetSfere Enterprise page.
View NetSfere EnterpriseNetSfere Enterprise alternativesKaymera App vs NetSfere Enterprise
Swiss-hosted secure email, messaging, and VPN suite for private comms.
Key features: 10 listed. See them on the Sekur Private Data page.
View Sekur Private DataSekur Private Data alternativesKaymera App vs Sekur Private Data
Encrypted enterprise messaging solution within the SalaX Secure Collaboration suite.
Key features: 2 listed. See them on the SSH Secure Messaging 2024 page.
View SSH Secure Messaging 2024SSH Secure Messaging 2024 alternativesKaymera App vs SSH Secure Messaging 2024
No Secure Collaboration & Messaging shortlist yet. This is the closest one.
Updated 2026-11-01
See the shortlist