Why this matters
Storm Sensei uses your phone's location to check for lightning risk near you on the course. On iOS, how location works depends on whether the app is open on your screen or sitting in the background — and knowing this difference matters for your safety out on the course.
When Storm Sensei is open on your screen:
Your location updates continuously, and alerts reflect exactly where you are right now.
When your phone is locked or in your pocket/bag between shots:
This is an Apple restriction on all web-based apps like ours — not something we can turn off. Location stops updating. Any alert you receive is based on your last known position from when the app was last open, not your current position on the course.
What this means in practice:
If you check the app on the 3rd tee and then play the next two holes without reopening it, an alert during that stretch reflects where you were on the 3rd tee — potentially a hole or two behind where you actually are.
Apple restricts background location and doesn't let web apps silently wake up and check your position the way App Store apps can. This is intentional on Apple's part (battery and privacy reasons) and applies to every browser-based app on iPhone, not just ours. We're evaluating a future native app version that would remove this limitation — this guide will be updated if that changes.
Reach out to support@stormsens.ai with any alert timing concerns you notice during play — your feedback directly shapes what we prioritize next.