FlySafe! it's your flying buddy. It warns of the presence of dangers such as cables, pylons, antennas, anything that can become dangerous for the crew and the aircraft with an acoustic and visual warning. The database, which is constantly updated, includes thousands of obstacles. Northern Italy available. Soon also all the other regions.
FlySafe! signals, through an audible and visual signal(traffic light), the impact time calculated based on the distance from the obstacle and the speed:
- red = 30 seconds;
- yellow = 20 seconds;
- green = 15 seconds.

The obstacle database is updated daily and you too can contribute by connecting to the website https://www.flyobstacles.eu and reporting an obstacle.

SUBSCRIPTION PRICING AND TERMS:
FlySafe! offers an automatically renewing monthly, quarterly and annual subscription that gives you full access to the database as long as you maintain an active subscription.
These prices are for customers in Europe.
Pricing in other countries may vary and actual charges may be converted to your local currency depending on your country.
Payment will be charged to the credit card connected to your iTunes account at the time of initial subscription purchase. Subscriptions automatically renew unless auto-renew is turned off at least 24-hours before the end of the current subscription period. Your account will be charged for renewal within 24 hours prior to the end of the current period end date, and the cost of the renewal will be listed. You can manage your subscription and auto-renewal can be turned off by going to your Account Settings after the purchase.

EULA
https://www.apple.com/legal/internet-services/itunes/dev/stdeula/