Получаем call-stack в iOS - https://blog.grijjy.com/2017/02/09/build-your-own-error-reporter-part-1-ios/
Получаем call-stack в Android - https://blog.grijjy.com/2017/02/21/build-your-own-error-reporter-part-2-android/
Библиотека для Windows(и не только call-stack): DebugEngine