Meet Hourbook — Track engine hours & service

Productivity

Hourbook

Track engine hours & service

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

A look inside

Tap any screenshot to open the full-resolution version.

What's inside

• Machine Barn — Every hour-metered machine in one place — any brand, any type. Each machine card shows current hours, type, and what's due next; the detail view gathers its ledger, intervals, parts, and history.
• Hour Ledger — Log the meter reading whenever you climb off. Hourbook keeps a dated ledger per machine and computes a usage rate (hours per week) from recent readings to project real calendar due dates.
• Due Board — One board across the whole barn: every upcoming service sorted soonest-first, each showing hours remaining and the projected calendar date from that machine's usage rate.
• Service Intervals & Templates — Define intervals the way manuals write them — every N hours, every N months, or whichever comes first — or apply a template pack for compact tractors, zero-turns, ATVs/UTVs, and generators.
• Parts Counter Card — Per-machine card of filter and consumable part numbers, cross-references, and fluid capacities — built to be read aloud at the dealership parts counter, with photos of labels and stickers.
• Service History & Export — Log completed work in two taps; the matching interval resets from that hour reading. Export a machine's full dated service history as a clean PDF that boosts resale and backs warranty claims.

Why we built it

Hour-metered equipment is serviced by engine hours, not miles or dates, and owners lose track of hour readings, which service is due when, and the filter part numbers for each machine. The incumbent app (TractorPal) sits at 1 star with data-loss reports, ads in its paid tier, and a per-device subscription, so owners f…

What makes it different

TractorPal (1-star, data-loss reports, ads even for paying users, $11.99/yr per device) is the broken incumbent; LookOver is competent but repeats the pricing wedge with a 1-machine free tier at $24.99/yr or $99.99 lifetime; John Deere TractorPlus/MyMaintenance is Deere-only and needs a JDLink subscription; Simply Fle…

Who it's for

People who have tried every productivity app and bounced off the noise. If you want something calm, fast, and private, this is for you.

In one line: Track engine hours & service

Try it

See the Track engine hours & service for the full feature list, the info table, and support links.

Use Hourbook, found a bug, or have a feature request? Comments are open below — anonymous is fine.