Live Strike Map
Watch active lightning with smooth fades and a distraction-free map UI.
GLOBAL LIGHTNING AWARENESS
Track storms live with calm, premium clarity.
THUNDRA blends real-time lightning maps, elegant heatmaps, and local alerts in a focused experience designed for speed and peace of mind.
No Ads
No Account
On-Device Alerts
Calm Local Alerts
Set radius, time windows, and quiet hours with local on-device notifications.
Insight Heatmaps
Find active zones across today, week, month, and all-time views.
Trend Analytics
Explore daily/monthly charts, seasonality, and peak activity hours.
LEARN
Feature deep-dives and storm-readiness guides.
Built to rank for intent and help users decide faster.
Feature
Live Strike Map
How THUNDRA visualizes active lightning with calm map UX.
FeatureCalm Local Alerts
Configure radius, quiet hours, and useful on-device warnings.
FeatureHeatmap + Trends
Use weekly and monthly density views to spot risky windows.
BlogTHUNDRA Journal
Short practical reads on alert hygiene and weather awareness.
WHY THUNDRA
Built for trust when weather gets intense.
THUNDRA keeps awareness high and noise low with a privacy-first product approach.
Privacy First
No account required. No ad SDKs. Your experience stays focused.
On-Device Alerts
Lightning notifications are processed locally on your device.
No Noise
Quiet hours and calm design prevent alert fatigue.
Privacy by Design
No account, no ad SDKs, and no third-party behavioral tracking in-app.
Data Retention
Strike history is local and auto-purged in a rolling ~30 day window.
Security Baseline
Network calls use HTTPS/TLS and alerts are computed locally on-device.
Read our Privacy Policy and Security & Retention.
HOW IT WORKS
Three steps to smarter lightning awareness.
See Live Activity
Open the map to monitor active strikes with smooth visual fading.
Set Alert Boundaries
Choose your radius, time window, and quiet hours to stay in control.
Act with Confidence
Use heatmaps and trends to understand where and when activity spikes.
Ready for a cleaner way to monitor lightning?
Launch THUNDRA on iPhone and stay aware without noise.
Download on the App StoreFAQ
Answers before the first storm.
Everything you need to know about THUNDRA's privacy, alerts, and daily use.
How does THUNDRA send alerts?
THUNDRA triggers local on-device notifications based on your alert radius and time window settings.
Does THUNDRA use my location?
THUNDRA only uses your location to center the map and calculate lightning distance for alerts.
Do I need an account?
No. THUNDRA does not require account creation to use core tracking and alert features.
Is THUNDRA ad-free?
Yes. THUNDRA is designed as a focused, ad-free experience.