"Really impactful idea with strong social value. Smartphones as always-on sensors make it widely accessible.

The ML layer helps cut down false positives effectively.

Emergency alerts + auto-dispatch can save precious minutes.

Optional OBD-II and…"

"This is an incredibly detailed and well-structured plan. The comprehensive breakdown, from sensor inputs to legal considerations and monetization strategies, demonstrates a deep understanding of the problem. Your two-layer detection logic is…"

"This is such a comprehensive breakdown of crash detection technology! I really like how you’ve covered not just the sensor logic but also the backend, dispatch integration, and even privacy/legal concerns. The phased MVP approach makes it super…"

"Your thoughtful integration of technology, UX, and compliance is impressive. Highlighting the monitoring centre partnership as a differentiator is smart, as it ensures reliability in real-world emergencies. A simple mockup of the alert screen could…"

"The way you’ve tied together technology, UX, and compliance is really thoughtful. Highlighting the monitoring center partnership as a differentiator is smart since that’s what makes this reliable in real-world emergencies. Would love to see a simple…"

"This breakdown is impressive especially the phased MVP roadmap. Maybe adding a visual user flow or unique differentiator vs. Apple/OnStar could make the value clearer for investors or early adopters."

"A smartphone app that detects car crashes using built-in sensors (accelerometer, gyro, GPS).

When a crash is suspected, it shows a cancelable alert to the user.

If not canceled, it automatically sends location and crash details to emergency…"

"This is a very detailed and clear overview of how a smartphone-based crash detection app works. It covers everything from sensors and detection logic to user flow, privacy, and MVP roadmap. Really helpful for understanding how such apps can be built…"

"Really solid breakdown 👏 Covers tech, UX, legal, and business angles clearly. If executed well, this could genuinely save lives and bring peace of mind to families. Great job making it both practical and visionary! 🚗💡"

"A fantastic proposal with a clear, life-saving mission. The detailed and phased roadmap shows a very practical understanding of how to turn this powerful concept into a real-world service that could make a huge difference."

"I love how the idea is so comprehensive, and how you've broken them down into phases! Just out of curiosity, how would you overcome regional differences during emergency calls?"

"This app concept is strong because it combines smartphone sensors with optional car data to provide real-time crash detection. The layered detection approach—using both raw sensor thresholds and an ML-based classifier—helps reduce false positives…"

"This is a fantastic and timely idea. The app addresses a clear safety need for millions of drivers, especially those without built-in vehicle telematics. Your detailed plan for a multi-sensor approach and a user-cancellable alert system is the right…"

"Breaking the journey into Phase 0/1/2/3 is excellent. It shows investors or teammates you can start lean but have a long-term vision."