Hourbook

About this app

What Hourbook does

The machines that keep a small farm or big backyard running are serviced by engine hours, not miles and not months. The 50-hour break-in on the compact tractor, the 100-hour oil change on the zero-turn, the 25-hour air-filter check on the ATV, the 200-hour valve inspection on the generator — every one of them depends on a number that lives on a tiny meter under a dusty hood. Hourbook is the offline hour-meter binder that keeps all of it straight. Add each machine once — any brand, any type. Log an hour reading whenever you climb off, and Hourbook keeps a running ledger for every machine in the barn. From your recent readings it learns how fast each machine accumulates hours and projects a real calendar date for every upcoming service, so a 400-hour job stops being an abstract number and becomes due around August 9th. The Due board lines up everything across the whole barn, soonest first, so nothing sneaks up on you again. Service intervals are yours to define: every N hours, every N months, or whichever comes first — exactly how the operator manuals write them. When you finish a job, log it in two taps and the interval resets from that reading. Your service history builds itself into the record that matters at trade-in time. Then there is the parts counter. Every machine gets a parts card: engine oil filter, hydraulic filter, air filter, fuel filter, belts, blades, spark plugs — each with its part number, cross-reference, and fluid capacity. Standing at the dealership counter, you open the card and read the numbers off instead of guessing or driving home. Hourbook is deliberately offline. No account, no cloud, no ads, nothing to subscribe to, and your records never leave the device. It works in the barn, at the back forty, and in the parts store basement where signal goes to die. It was built for the owner with a mixed fleet — a Kubota tractor, a Deere mower, a Honda generator, a Polaris ATV — that no single manufacturer app will ever cover. • Hour-reading ledger with usage-rate projection to real due dates • Due board across every machine, soonest first • Custom service intervals: hours, months, or whichever comes first • Parts card per machine: filter part numbers and fluid capacities • Full service history that resets intervals automatically • Interval template packs for tractors, zero-turns, ATVs, and generators • Fully offline, no account, no ads, one-time purchase