Comparison

Alaris vs CDA Alerts

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

Head to head
About

Alaris

This app offers free guidance from a counter-terrorism expert to enhance the safety and security of places of worship globally. It features an immediate action button for practical responses to various threats, designed for simplicity and accessibility to users of all faiths.

Highlights
  • Free expert advice on security
  • Counter-terrorism guidance
  • Immediate 'Take Action' button
  • Practical response steps
  • Designed for all faiths
Read full description

In response to attacks and threats to places of worship around the world, this app provides free advice from counter terrorism expert Chris Phillips GCGI, FCiiSCM, FSyl for making places safer and more secure. Alaris’s “Take Action” button in the app provides immediate practical steps for responding to the different threats. YUDU Sentinel have kept the design of the Alaris app simple for the benefit of people of all faiths across the world.

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

Alaris4 screens
CDA Alerts3 screens

Verdict

The call

The clearest difference is update cadence: CDA Alerts at every 11 months against Alaris's every 36 months. On price, ads, in-app purchases and device support there is nothing between them.

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

CostPrice · In-app purchases · Ads · Monetization

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

UpkeepUpdate frequency

Alaris ships an update every 36 months, CDA Alerts every 11 months. The most recent releases landed on October 25, 2026 and September 29, 2026 respectively.

Scorecard1 real difference · 8 level
Alaris versus CDA Alerts: the parameters behind the verdict, then further details
ParameterAlarisCDA Alerts
PriceFreeFree
Rating5.0 (1 ratings) — better—
Number of ratings1 — better—
Update frequencyEvery 36 monthsEvery 11 months — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS16.615.0 — better
Further details — not scored
Size21 MB146 MB
Age rating4+4+
DeveloperYUDU LtdCentral District Alliance Ltd

In-app purchases

None

Alaris

No in-app purchases

None

CDA Alerts

No in-app purchases

Questions

Is Alaris free?
Alaris 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 Alaris or CDA Alerts have ads?
Neither Alaris nor CDA Alerts shows ads.
Which is updated more often, Alaris or CDA Alerts?
Alaris ships an update every 36 months, and CDA Alerts every 11 months. Most recently, Alaris was updated on October 25, 2026 and CDA Alerts on September 29, 2026.

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