No Sneak Peaks. ForeFlight Mobile features a variety of hazard avoidance technologies for better situational awareness and safety.

Hazard Advisor

Hazard Advisor highlights hazardous terrain and obstacles within 1,000′ of your aircraft’s GPS altitude. Terrain and obstacles (“hazards”) within 100′ are colored red, and hazards within 1,000′ of your aircraft’s altitude are colored yellow. Obstacles are dynamically added to the screen as they become threats.

Profile view

Profile view takes our Hazard Advisor feature into vertical mode and gives you a side view of terrain and obstacles.


Use Profile view to easily determine the highest point along your route, how much clearance you have over that highest point, and if your planned altitude intersects with any terrain or obstacles.


Profile view scrolls along as you fly and continuously updates your height AGL.


Turning on the obstacles layer on the map view allows you to tap on any obstacle on a chart to get detailed information on lighting, type, and MSL and AGL height.

Synthetic Vision

ForeFlight's Synthetic Vision is a visually stunning and high-performance hazard awareness capability for iPad. Fly with more confidence in all conditions and terrain. When paired with Stratus 2, ForeFlight's Synthetic Vision becomes an affordable backup attitude system.

A High Quality, Void-Filled Terrain Database

Terrain databases are not made equal. The source of the terrain data is a very important consideration. Free data sets used by some applications have holes – or “voids” – that miss important features like mountain peaks. These holes exist for a variety of technical reasons, but need correcting.

ForeFlight’s terrain database, however, is “void filled”. If the terrain database you fly with is not void filled, you are not getting the whole picture.