Great app but drains battery life

This app is great and very useful, but I recently discovered that it uses up 62% of my battery life which caused my battery to die quickly. Luckily the new iPhone 6 has a feature where you can see which apps use the most battery life. All of my other apps use less than 10%. How is the app suppose to keep me safe if it kills my battery, therefore making my location undetectable and leaving me with no phone to reach help? Please fix this, this is very disappointing.

Mrs. Epstein about bSafe - Never Walk Alone