Generator Tracker is a logbook for power generators. Tap Start/Stop and engine hours count themselves; enter the tank size to see fuel and runtime left, with litres per hour from your refills; set oil, filter and spark plug intervals by hours or days and see what's overdue on the home screen; monthly charts per generator. Offline-first, account optional, open source (MIT). Made in Ukraine for scheduled blackouts — useful for any backup, off-grid or job-site generator.
