WiSE is a tool designed to calculate safety zones and prevent burn injury to wildland firefighters. It uses a new model developed by Dr. Bret Butler from USFS FireLab.

WiSE is a tool designed to provide safe separation distance calculations to wildland firefighters. This new tool gives firefighters the crucial ability to identify suitable safety zones while in the field. With inputs based on direct observations in the field, wildland firefighters now have the ability to quickly calculate the distance needed to provide themselves and others, safety from burn injury. wildland firefighters can enter on-scene observed data via parameters such as: Wind, Slope, Fuel Height and Resource Information.

Using these inputs, the individual can quickly calculate their Safe Separation Distance (SSD) and view the results on a map. As conditions change, wildland firefighters can quickly update observed conditions to view updated results, all without having to leave the mapping screen. WiSE is unique in that it does not require an active data connection to calculate these safety zones.

What’s New

Version 2.2.4

Performance updates.
Update to button sizing on iPad.

Ratings and Reviews

5.0 out of 5
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App Privacy

The developer, Technosylva Inc., indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy.

Data Linked to You

The following data may be collected and linked to your identity:

  • Location
  • User Content
  • Identifiers

Privacy practices may vary, for example, based on the features you use or your age. Learn More


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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