Comparison

Sentinel Chat Channels vs CDA Secure Comms

Price, ratings, monetisation and update history for both apps, side by side โ€” with what reviewers say about each.

Head to head
About

Sentinel Chat Channels

Facilitates secure team communication with instant messaging, file sharing, and group management. It offers a GDPR-compliant, professional environment with an audit trail and a protected contacts directory for immediate staff calls.

Highlights
  • Instant messaging
  • File sharing
  • Push notifications
  • Group management
  • Tamper-proof audit trail
  • Protected contacts directory
Read full description

The Chat Channels app facilitates immediate communication with teams using instant messaging, file sharing, push notifications and group management in a secure environment with a tamper-proof audit trail. Chat Channels is GDPR-compliant and designed for use within a professional setting. Your organisation has full control of admin permissions. Chat Channels is one of the many ways that users of Sentinel, the award-winning crisis management software, can communicate and collaborate to resolve a crisis effectively. The Chat Channels app also includes the Contacts Directory that is protected from being shared on social media sites and gives the users the ability to immediately call staff and key contacts.

About

CDA Secure Comms

Features
Read full description

Delivered by Central District Alliance, CDA Secure Comms is an ISO 27001 encrypted platform created exclusively for security stakeholders across the central London business districts of St Giles, Bloomsbury, Holborn, Hatton Garden, Farringdon & Clerkenwell. The multi-channel software supports crisis response teams and security personnel to share real-time intelligence in the event of a major emergency, incident, or crime; enabling users to securely send GDPR compliant messages, images and videos instantly.

Screenshots

Sentinel Chat Channels4 screens
CDA Secure Comms4 screens

Verdict

The call

The clearest difference is update cadence: Sentinel Chat Channels at every 3 months against CDA Secure Comms's every 9 months. On price, ads, in-app purchases and device support there is nothing between them.

Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS

CostPrice ยท In-app purchases ยท Ads ยท Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Sentinel Chat Channels ships an update every 3 months, CDA Secure Comms every 9 months. The most recent releases landed on October 12, 2026 and October 14, 2026 respectively.

Scorecard1 real difference ยท 7 level
Sentinel Chat Channels versus CDA Secure Comms: the parameters behind the verdict, then further details
ParameterSentinel Chat ChannelsCDA Secure Comms
PriceFreeFree
Positive reviews100.0% of reviewsโ€”
Update frequencyEvery 3 months โ€” betterEvery 9 months
AdsNoNo
In-app purchasesNoNo
MonetizationFreeโ€”
DevicesiPhone, iPad, iPod โ€” betteriPhone, iPod
Requires iOS15.015.0
Further details โ€” not scored
Size35 MB34 MB
Age rating4+4+
DeveloperYUDU LtdCentral District Alliance Ltd

In-app purchases

None

Sentinel Chat Channels

No in-app purchases

None

CDA Secure Comms

No in-app purchases

Questions

Is Sentinel Chat Channels free?
Sentinel Chat Channels is free to download, with no in-app purchases.
Is CDA Secure Comms free?
CDA Secure Comms is free to download, with no in-app purchases.
Do Sentinel Chat Channels or CDA Secure Comms have ads?
Neither Sentinel Chat Channels nor CDA Secure Comms shows ads.
Which is updated more often, Sentinel Chat Channels or CDA Secure Comms?
Sentinel Chat Channels ships an update every 3 months, and CDA Secure Comms every 9 months. Most recently, Sentinel Chat Channels was updated on October 12, 2026 and CDA Secure Comms on October 14, 2026.

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