Comparison

Sentinel Chat Channels vs CDA Alerts

Price, ratings, monetisation and update history for both apps, side by side β€” 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 Alerts

Features
Read full description

Central District Alliance the Business Improvement District comprising of Holborn, Clerkenwell, Farringdon, Bloomsbury, and St Giles. We are a collective voice of over 400 organisations, representing a highly diversified commercial and cultural base of creative, educational, legal, medical, professional, scientific, and technological brands of global significance – generating a contribution to London’s GVA second only to the city. Prioritising sustainability, destination modelling, business solutions, public realm, and placemaking within our district. This Incident Alert System has been designed to support members responsible for their staff and business continuity, crisis management and emergency planning. This system can: - Be used to communicate to you in real-time, on major incidents in the area as they unfold, such as fire, gas explosion and act of terrorism, as well as notify you in advance of planned events such as marches or protests that may affect your business and staff. - Give you access to useful resources in a document library to help you plan in advance or even refer to during a real-time incident. They can be viewed offline if mobile networks are unavailable.

Screenshots

Sentinel Chat Channels4 screens
CDA Alerts3 screens

Verdict

The call

The clearest difference is update cadence: Sentinel Chat Channels at every 3 months against CDA Alerts's every 11 months. On price, ads, in-app purchases and device support there is nothing between them.

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

CostPrice Β· In-app purchases Β· Ads Β· 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 Alerts every 11 months. The most recent releases landed on October 12, 2026 and September 29, 2026 respectively.

Scorecard1 real difference Β· 7 level
Sentinel Chat Channels versus CDA Alerts: the parameters behind the verdict, then further details
ParameterSentinel Chat ChannelsCDA Alerts
PriceFreeFree
Positive reviews100.0% of reviewsβ€”
Update frequencyEvery 3 months β€” betterEvery 11 months
AdsNoNo
In-app purchasesNoNo
MonetizationFreeβ€”
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.015.0
Further details β€” not scored
Size35 MB146 MB
Age rating4+4+
DeveloperYUDU LtdCentral District Alliance Ltd

In-app purchases

None

Sentinel Chat Channels

No in-app purchases

None

CDA Alerts

No in-app purchases

Questions

Is Sentinel Chat Channels free?
Sentinel Chat Channels is free to download, with no in-app purchases.
Is CDA Alerts free?
CDA Alerts is free to download, with no in-app purchases.
Do Sentinel Chat Channels or CDA Alerts have ads?
Neither Sentinel Chat Channels nor CDA Alerts shows ads.
Which is updated more often, Sentinel Chat Channels or CDA Alerts?
Sentinel Chat Channels ships an update every 3 months, and CDA Alerts every 11 months. Most recently, Sentinel Chat Channels was updated on October 12, 2026 and CDA Alerts on September 29, 2026.

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