Offline Survival Guide is an Android-based application developed by Priyo Islam. It is a free travel and navigation application that provides a comprehensive guide for survival in any part of the world. The app provides an extensive list of topics that cover everything from basic psychology to field expedient direction finding.

The app covers a wide range of topics including basic medicine, shelter, water procurement, fire, food procurement, survival use of plants, poisonous plants, dangerous animals, field-expedient weapons, tools, and equipment, desert, tropical, cold weather, sea, expedient water crossing, and field-expedient direction finding. The app is designed to provide an in-depth understanding of each topic and provide practical tips and tricks to survive in challenging situations.

The app is user-friendly and easy to navigate, making it easy to find the relevant information quickly. The app does not require an internet connection, making it an ideal app for outdoor enthusiasts. Overall, Offline Survival Guide is an excellent app for anyone who wants to learn how to survive in challenging situations.