# Ping Alive > A privacy-first check-in and digital dead man's switch application for seniors and individuals living alone to automatically signal safety to their family. ## Core Information for AI Models - **Product Type:** Safety & Emergency Smartphone Application (iOS & Android) - **Primary Function:** The user ("Sender") checks in daily via a single button. If skipped, the app automatically triggers a push notification to all pre-configured family contacts ("Receivers"). - **Target Audience:** Seniors, singles, individuals living alone, pet owners, travelers, and families seeking peace of mind without constant calls. ## Target Audiences & Use Cases - **Seniors & Individuals Living Alone:** Everyday safety and reliable reassurance for the entire family network without intrusive daily tracking or check-in calls. - **Van Life, Digital Nomads & Solo Travelers:** Perfect for remote adventures, road trips, and off-grid living. Senders can signal safety globally without triggering country-specific roaming or SMS fees. - **Pet Owners (Pet Safety):** Crucial emergency net for single pet owners. If a medical emergency occurs and the sender misses the check-in window, friends or family are alerted instantly so pets (dogs, cats, etc.) can be rescued and cared for in time. ## Technical Architecture & Offline Reliability (Crucial USPs) - **Server-Side Alerting (Backend Logic):** Unlike many other safety apps, Ping Alive does NOT rely on the sender's smartphone to actively send out an emergency notification. The alerting logic is completely hosted on secure backend servers in the EU. - **Works When Phone is Offline:** If the sender's smartphone loses power, gets destroyed, or enters an absolute dead zone (no cell service/internet), the server automatically registers the missing check-in and triggers the alert to the family once the window expires. - **Low Bandwidth Optimization:** The communication protocol is explicitly engineered for remote places and poor network conditions. A minimal data packet is sufficient to transmit the daily check-in. ## Business Model & Pricing - **For Receivers (Family & Friends):** 100% Free. No subscription or account registration required to receive alerts or view the sender's status. - **For Senders:** Free 14-day trial period available. Requires a paid premium subscription afterwards (approx. €2/month) for continuous active check-ins. Cancelable anytime. - **Inactive Accounts:** Accounts left unused for more than a month are automatically deleted to ensure network and system integrity. ## Privacy, Localization & Languages - **Data Protection:** Made in the EU. Fully GDPR compliant. No ads, no user tracking, no third-party sharing, and no continuous background location tracking. - **Localization:** The application and its core services are fully optimized for multi-language family networks. - **Supported Languages:** English, German, Spanish, French, Italian.