CallingTree vs ICG Events
Price, ratings, monetisation and update history for both apps, side by side โ with what reviewers say about each.
CallingTree
Facilitates emergency communications and business continuity for teams. Provides offline access to critical information, mass messaging capabilities, and staff check-ins for safety monitoring.
- One-touch emergency communications
- Offline access to business continuity plans
- Mass broadcast messaging (Push, SMS, Voice)
- On-the-fly communication creation and tracking
- Staff check-in for safety monitoring
- Bespoke calling cascades
- Document delivery and updates
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The Calling Tree puts emergency communications and business continuity information directly into the hands of your people. Send urgent communications to individuals, teams or your entire organisation using Push, SMS and Voice, with responses tracked so you can quickly see who has received and responded to a message. Messages can be prepared in advance through the secure web administration system or created directly within the app when an incident occurs. Flexible access levels allow authorised users across the organisation to communicate with the people and teams they are responsible for. Staff can check in during an incident, giving managers an immediate view of who is safe, who is available and who may need assistance. Each user has access to their own calling tree or call cascade, clearly showing who they are responsible for contacting and who is responsible for contacting them. Business continuity plans, emergency procedures, documents, maps and disaster recovery information can be distributed directly to users and centrally maintained by administrators. Crucially, key information is stored securely on the device, so essential plans and contact information remain available even when network connectivity is disrupted. Organisations can also allow users to maintain their own emergency contact details and communication preferences, with optional consent controls where required. The Calling Tree helps organisations communicate faster, account for their people and keep critical information available when normal operations are disrupted.
ICG Events
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The app is a container for ICG Events, providing up-to-date information and engagement to attendees. Enhance your event experience by using this meeting app. Features include the agenda, speaker biographies, and additional content.
Screenshots
Verdict
The clearest difference is update cadence: ICG Events at monthly against CallingTree's every 7 months. CallingTree's advantage is iOS requirement (15.6 vs 17.0). 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
CallingTree ships an update every 7 months, ICG Events monthly. The most recent releases landed on October 10, 2026 and October 5, 2026 respectively.
| Parameter | CallingTree | ICG Events |
|---|---|---|
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | โ |
| Update frequency | Every 7 months | Monthly โ better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | โ |
| Devices | iPhone, iPad, iPod โ better | iPhone, iPad |
| Requires iOS | 15.6 โ better | 17.0 |
| Further details โ not scored | ||
| Size | 4 MB | 55 MB |
| Age rating | 4+ | 17+ |
| Developer | The Calling Tree Company | ICG PLC |
In-app purchases
CallingTree
No in-app purchases
ICG Events
No in-app purchases






