App Intel

SIGNL4 – Mobile Alerting

LiveDerdack GmbH2 apps · 42.6K installsBusinessFreecom.derdack.signl4

Critical Alerting with Tracking, Escalation, On-Call Duty and Shift Scheduling

Alert me★ WatchOpen in Play ↗
Total installs
39,222
exact · Play shows 10,000+
Installs / day
—
measured after our second crawl (about a day)
Rating
4.4★
433 ratings · 17 reviews
Released
19 Sept 2017
9.1y ago
Last update
9 Sept 2026
v6.4.0 · 1mo ago
Countries
—
not checked yet

Install history

exact counter from Google Play
38.3K41.2K44.2K47.1K50K11 Oct12 Oct12 Oct
38.3K41.2K44.2K47.1K50K11 Oct12 Oct12 Oct

Installs per day · last 90 days

Not enough history yet — check back tomorrow

Change timeline

No changes recorded yet. We compare every crawl with the previous one and list title, icon, screenshots, description, version, price and availability changes here.

Country availability

Availability has not been checked for this app yet. “Check all countries” looks the app up in about 140 Google Play storefronts and shows where it is live, listed but not installable, or missing — plus any country-specific (custom) store listings.

Top countries

Country data will be available soon.

We estimate where downloads come from using the app’s position in Google Play’s top charts in about 140 countries. This app is not in any chart we have collected yet; the estimate appears as soon as it is.

Top chart positions

Not in any tracked top chart.

App manifest

Read this app's manifest from Google Play: permissions, declared SDKs, components and AdMob app ID. Saved analysis appears here automatically.

Manifest analysis reads only the required APK ranges. Base APK downloads may need separate device splits to install.

Data safety

declared by the developer on Google Play
  • Shares data with third parties Personal info and Device or other IDs
  • Collects data Location, Personal info and 3 others
  • Data is encrypted in transit
  • You can ask for your data to be deleted

This is the developer's own declaration, summarised from the Play listing. The permissions below show what the app is technically able to access.

Permissions

17 in 6 groups
7 Sensitive6 Notable4 Routine

What this app can do with your phone

  • Know roughly where you are, using mobile towers and Wi-Fi networks
  • Know your exact location using GPS, Wi-Fi and mobile networks
  • Use your camera to take photos and record videos
  • Record sound using your phone's microphone
  • See every contact saved on your phone, including names, numbers and emails
  • See all events in your calendar, including details like guests, places and notes
CalendarSensitive2

Access to your calendar events and their details

  • See all events in your calendar, including details like guests, places and notesread calendar events plus confidential information · READ_CALENDAR
  • Add, change or delete calendar events and email guests, without telling the calendar owneradd or modify calendar events and send email to guests without owners' knowledge · WRITE_CALENDAR
ContactsSensitive1

Access to the contacts saved on your phone

  • See every contact saved on your phone, including names, numbers and emailsread your contacts · READ_CONTACTS
LocationSensitive2

Access to where your device is, using GPS or network signals

  • Know roughly where you are, using mobile towers and Wi-Fi networksapproximate location (network-based) · ACCESS_COARSE_LOCATION
  • Know your exact location using GPS, Wi-Fi and mobile networksprecise location (GPS and network-based) · ACCESS_FINE_LOCATION
CameraSensitive1

Access to your camera to take photos and record video

  • Use your camera to take photos and record videostake pictures and videos · CAMERA
MicrophoneSensitive1

Access to your phone's microphone to record sound

  • Record sound using your phone's microphonerecord audio · RECORD_AUDIO
OtherNotable10

Access to miscellaneous device features that don't fit other categories

  • Create its own accounts on your device and read or set their passwordscreate accounts and set passwords · AUTHENTICATE_ACCOUNTS
  • Change volume and choose which speaker or headset plays soundchange your audio settings · MODIFY_AUDIO_SETTINGS
  • Use NFC to talk with tags, cards and readers held close to your phonecontrol Near Field Communication · NFC
  • Start itself automatically as soon as your phone finishes turning onrun at startup · RECEIVE_BOOT_COMPLETED
  • Keep your phone's processor or screen from going to sleep, which can use more batteryprevent device from sleeping · WAKE_LOCK
  • Turn automatic syncing on or off for your accounts, like contacts or emailtoggle sync on and off · WRITE_SYNC_SETTINGS
  • Check whether you are online and whether you use Wi-Fi or mobile dataview network connections · ACCESS_NETWORK_STATE
  • Connect to the internet to load content and send datafull network access · INTERNET
  • Make your phone vibratecontrol vibration · VIBRATE
  • Receive push messages sent from the app's servers over the internetreceive data from Internet · com.google.android.c2dm.permission.RECEIVE

Sensitive = can reach personal data, location, camera/mic or act on your behalf. Notable = changes how your device behaves. Routine = normal for almost every app. Source: Google Play's permission list for all versions of this app.

Store listing

Full description
In case of critical incidents in areas like workers safety, 24/7 IT operations, manufacturing continuity or disaster response, SIGNL4 is your tool for instant mobile alerting. It is designed to effectively alert and notify incident response teams like firefighters, emergency teams, IT Ops or Security Ops staff, field service technicians and maintenance engineers. SIGNL4 adds critical mobile alerting to your services and systems in no time. It bridges the ‘last mile’ from IT and IoT systems, machines and sensors to engineers, IT staff and workers ‘in the field’ and accelerates response up to 10x. SIGNL4 notifies staff on duty through targeted and persistent mobile push, text messages and voice calls with acknowledgement, tracking and escalation. It provides for convenient on-call duty and shift scheduling to reliably delivers the right information to the right people at the right time – anywhere. SIGNL4 enables mission-critical systems in IT, IoT, on the shop floor and in hundred other areas to automatically notify the right people when response time matters. SIGNL4 provides simple and convenient interfaces like email and webhooks to quickly connect systems like IT monitoring, IT service management, IoT devices, SCADA systems, security cameras and more. We have verified 150+ 3rd party integrations. SIGNL4 enables to: * Reliably and persistently dispatch critical alerts and work items to field staff, maintenance engineers and mobile workforce * Automate alerting/escalation processes by linking machines, IT or any other application to the right person at the right time * Accelerate and ensure response by providing persistent notifications, response tracking and escalations * Manage timely availability of operations teams (on-call duties, shifts) to route alerts automatically * Link any system directly to staff in charge. Consolidate events and alerts from multiple sources. Create a single pane of glass for critical information SIGNL4 provides: * Designed for critical operations with a new visual experience including a native 'darkmode' * Persistent and trackable alert notifications by mobile push, voice calls and text * Automated escalations based on target response times * Scheduled and ad-hoc on-call duty and shift management * Shared annotations to alerts and audit trails * Raising of alerts from the mobile app * Integrated mobile chat * Alert notifications to your entire team or team members on duty * Custom sounds for your critical alerts * One-touch connect with your team members * Monitors, tracks and reports your hours spend on duty (CSV download) * Complete audit trails of all notifications and response (CSV download) * 150+ verified integrations and comprehensive API for 3rd party tools How can you trigger alerts and notifications? * Send an email or call our webhook (REST API) * From IT Monitoring systems like PRTG, Zabbix, CheckMK, SCOM, Solarwinds, Dynatrace, Datadog, Grafana, Icinga, Nagios, BMC, Netapp, New Relic, Splunk * From ITSM systems like ConnectWise, ServiceNow, Freshdesk, Freshservice, SMAX, Topdesk, Remedy * From IT Security systems like Azure Sentinel, Azure Security, Sophos * From automation platforms like Zapier, Microsoft PowerAutomate, Node-Red, UIPath * From IoT and OT like Wonderware, Siemens, zenon, IXON, Telekom IoT Service Button and many other SCADA and MES * From any systems capable of sending email or calling a webhook * In-app 1-click alert trigger with automated geo-location * Use your web browser to send alerts to your team Note: You need a SIGNL4 account to use this app and some features depend on your SIGNL4 plan.

What's new

- New: You can now change your profile color in the profile settings - New: Stakeholders can now also enter and submit comments or confirmations in the Signl chat

Growing in Business

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