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However when using PES with PES Server our users also obtain military grade BFT (Blue Force Tracking) functionality and the possibility to share tactical objects in a common server based COP. PES users can share tactical data (POI, unit positions, routes, tracks, etc.) directly between them using SMS or email. Entire Meitrack tracker family (TC68, MT90. PES Server also offers the use of popular and reasonably priced GPS trackers using the Coban protocol. PES Server users also benefit from our web COP planning and monitoring features. While PES offers tactical object sharing through media such as email and SMS a PES Server subscription is needed for server based live data exchange. It is widely used by Airsoft players around the world enabling them to reach a new level of realism in milsim games. The public version of PES available through Google Play is intended for enthusiast and semi-professional use. PES is currently being evaluated by the Slovenian armed forces, Police and National Crisis Management Center as a part of their BMS (Battlefield Management System). It serves a similar purpose as TacNAV / "Tactical NAV" for iOS. PES was designed by active soldiers, as a substitute for a traditional GPS receiver, paper map and a mobile phone. PES now also support Laser Range Finders (LRF) to aid battlefield object acquisition. It offers topographic land and sea navigation, asset tracking, blue force tracking - BFT and Common Operational Picture (COP) sharing. Personal Eye System is a personal tracking, asset tracking, military navigation and tactical data sharing application aimed at soldiers, police, security forces, emergency services, VIP protection services, asset tracking and other uses.