Won’t open
The app won’t open. It just hangs and never does anything else but display the opening screen. I have an iPhone 13 and yes iOS is up to date.
Not enough ratings yet to assess Signaller.
Signaller - Uptime monitoring appears to be a legitimate app. AppsHunter Legitimacy Score for Signaller is 80/100.
Based on 80 of 100 points across 7 verification signals from App Store and developer data.