Somogyi Nandor suggested many ideas to improve the system and reported problems when working with the system.

Thank you to Vladimir Agafonkin for "LeafLet" - excellent JavaScript library for working with maps.

Andrew Kolegov actively participated in the testing system and suggested many ideas to improve it.

Thank you to Sei Kan for "TimeZoneDB" services. Texts of notifications now more human readable.

Vladimir (transport company "Silver transfer") actively participated in the development of the system of monitoring transport, he expressed a lot of useful ideas and found a lot of bugs.