Kropyva
"Nettle" — the volunteer-built Ukrainian app that turns a $150 Android tablet into an artillery fire-control computer, replacing 15-minute Soviet hand-calculation with a coordinate, a tap and rounds on target in seconds. Built by the NGO Army SOS.
Kropyva provides tactical mapping, firing-data calculations and fire-mission transmission through stationary, portable and gun-commander workstations, according to KB Logika; ArmyInform also documents its use on infantrymen's phones for navigation and route planning.
Overview
Kropyva supports command functions at battalion/division, company/battery, platoon and individual-gun levels, according to KB Logika, which describes map marking, firing-data calculations and transmission of fire missions over compatible radios, fibre-optic and satellite networks. In its July 2026 anniversary account, KB Logika said more than 600,000 Kropyva-equipped devices had been put into operation cumulatively since 2014; this is a lifetime device count, not a count of unique users or simultaneously active devices. The company's anniversary account also lists calculation support for 192 weapon systems and more than 500 ammunition types, covering categories including artillery, tanks, small arms, aviation, air defence and UAVs.
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