G2 Vendor Directory

SIGNL4

by Derdack

88

Reviews

4.6

Star rating

#8

Rank in Emergency Notification

Pros and cons

Pros

  • Features
  • Ease of Use
  • Alerting System
  • Easy Setup
  • Alert Management
  • Integrations

Cons

  • Integration Issues
  • Missing Features
  • Expensive
  • Notification Issues
  • Limited Features
  • Learning Curve

Traffic & LLM citations

Monthly G2.com page views and citations by AI answer engines for SIGNL4.

Page views and citations · SIGNL4

Source: G2 review data

Winning from

Based on reviewers who said they switched from another product.

Losing to

Based on reviewers of other products who said they switched from SIGNL4.

Key stats

-100.0%

76

Small Business

3

Adoption by company size

SegmentShare of reviews
Small Business40.2%
Mid-Market33.3%
Enterprise26.4%

Quarterly history

QuarterReviewsStar rating
2025 Q1154.7
2025 Q225.0
2025 Q324.5
2025 Q435.0
2026 Q115.0
2026 Q2184.5

Satisfaction ratings

Ease of Use8.9
Ease of Setup9.0
Quality of Support9.2
Meets Requirements9.2

What reviewers say

Simple, Reliable UI with Excellent, Timely Support and Customer Focus.

5.0

“The userinterface is simple and effective, and always works. The technical support has been clear, timely and accurate every time. The customer focus is excellent.”

Owner

Signal 4 Makes On-Call Scheduling Easy, Especially with Stand-In Coverage

5.0

“Signl 4 works very well for managing our on-call scheduling. My personal favorite feature is the stand-in option, which makes it very easy to temporarily replace whoever is on call when needed.”

Operations Manager

Perfect Alerts to Email Notifications

5.0

“I was searching for a way to be notified of alarming being sent to my email address becuase the device I use”

Building Engineer