Sail inventory
Each sail is tracked on its own: main, jib, genoa and spinnaker.
Sailboat & Catamaran maintenance
Monohull or catamaran: rigging, sails, engines and genset on one schedule.
Standing and running rigging, every sail in your inventory, the hull and deck hardware, each engine’s hours and the generator on a cruising boat, so nothing gets forgotten over the off-season.
Tracks engine and generator hours, plus time
Lagoon 42 “Second Wind”
Tracks engine and generator hours, plus timeBoat & rigging
Standing Rigging Inspection
Running Rigging Inspection & Replacement
Sail Inspection & Repair
Each engine (once added)
Engine Oil & Filter Change
Fuel Filter Replacement
Fuel/Water Separator Filter
Generator (once added)
Generator Oil Change
Generator Air Filter
Generator Load Testing
Built for it
What Wrench Wise™ does for your sailboat
Catamarans and multihulls
Add a cat as a sailboat with both engines, each on its own hours and schedule, and record its keel type.
Onboard generator
The genset gets its own hour meter and a marine schedule: raw-water impeller, zincs, heat exchanger, sea strainer, oil and load testing.
Inventory aboard
Spares, fluids and safety gear with where each is stowed, expiry dates on flares and extinguishers, and a To buy list when you run low.
Rigging inspections
Standing and running rigging inspections on a yearly schedule.
Hull & deck
Bottom paint, anodes, through-hulls and deck hardware on the calendar.
Made for cruising
Your boat’s maintenance, wherever the anchor drops.
Living aboard or heading off for a season, the boat is your home, your engine room and your safety plan. Wrench Wise™ keeps all three on schedule, even with no signal for weeks.
Works with no signal.
Everything is stored on your phone or tablet, so you can log an impeller change at anchor or offshore. With Pro it syncs and backs up the next time you’re in range.
Every engine and the genset on its own hours.
Both engines on a catamaran and the generator each keep their own hour meter and marine schedule: impellers, zincs, heat exchangers, fuel filters.
The dinghy and its outboard too. Pro
Add the tender as its own boat with the outboard on its own hours and schedule (impeller, lower-unit oil, plugs), and keep its spares under the “Dinghy & outboard” inventory category.
Know where every spare is stowed.
Inventory by area, side (port or starboard), compartment and container, with a “keep aboard” minimum that puts anything running low on the To buy list before you leave port.
Safety gear that never quietly expires.
Track lifejackets, flares, EPIRB or PLB, fire extinguishers and the liferaft. Expiry and service dates show as they come due, and your phone reminds you.
Passage-ready checklists.
Pre-trip, post-trip, into-storage and recommissioning lists you can tick off at the dock and reuse next season.
Repairs at anchor, step by step.
Guides with photos work offline, so the how-to is on board when you need it.
Parts that travel. Pro
Keep part numbers and substitutes for each item, so you can find an equivalent when your usual brand isn’t sold where you are.
Fuel by the nautical mile.
Log diesel with trip distance in nautical miles and see what each hour of motoring costs.
Crew on the same page. Pro
Share the boat with your partner or crew, so everyone sees what’s due and who did what.
A history that helps at survey and sale. Pro
Dated services with receipts and photos, a read-only history link for a surveyor or buyer, and a full transfer when the boat changes hands.
Inventory aboard
Everything aboard, accounted for.
Start with the safety gear you carry, then add spares, fluids and tools with where each is stowed. Items running low go on the To buy list, and expiry dates come up before they pass.
Real screens from the Wrench Wise™ app, captured with a demo garage.
Day-one schedule
The starter schedule you get the moment you add it
These are the items Wrench Wise™ creates for a new sailboat. Adjust any interval or add your own, or import your owner’s manual with Pro.
Boat & rigging 11 items
| Item | Every |
|---|---|
| Standing Rigging Inspection | 12 months |
| Running Rigging Inspection & Replacement | 12 months |
| Sail Inspection & Repair | 12 months |
| Hull & Through-Hull Inspection | 12 months |
| Deck Hardware Inspection & Lubrication | 6 months |
| Battery Testing & Charging System | 6 months |
| Navigation Lights & Electronics Check | 12 months |
| Safety Equipment Inspection (Life Jackets, Flares, Fire Extinguishers) | 12 months |
| Bottom Paint/Antifouling Application | 12 months |
| Zinc Anode Inspection & Replacement | 12 months |
| Winterization/De-winterization | 6 months |
Each engine (once added) 10 items
| Item | Every |
|---|---|
| Engine Oil & Filter Change | 100 hrs or 12 months |
| Fuel Filter Replacement | 100 hrs or 12 months |
| Fuel/Water Separator Filter | 100 hrs or 12 months |
| Spark Plugs Replacement | 300 hrs or 36 months |
| Water Pump Impeller Replacement | 300 hrs or 36 months |
| Gearcase (Lower Unit) Oil Change | 100 hrs or 12 months |
| Engine & Drive Anode Inspection | 100 hrs or 12 months |
| Thermostat Inspection | 100 hrs or 12 months |
| Propeller & Shaft Spline Inspection/Grease | 100 hrs or 12 months |
| Engine Visual Inspection | 50 hrs or 6 months |
Generator (once added) 9 items
| Item | Every |
|---|---|
| Generator Oil Change | 100 hrs or 12 months |
| Generator Air Filter | 200 hrs or 12 months |
| Generator Load Testing | 12 months |
| Diesel Fuel Filter / Water Separator | 200 hrs or 12 months |
| Raw-Water Pump Impeller | 500 hrs or 12 months |
| Sacrificial Anodes (Zincs) | 6 months |
| Heat Exchanger Service | 1,000 hrs or 24 months |
| Sea Strainer Inspection | 3 months |
| Coolant (if liquid-cooled) | 1,000 hrs or 24 months |
Whichever comes first. Intervals are general guidance; your owner’s manual is the authority for your vehicle.
Put your sailboat on a schedule today.
Download Wrench Wise™, add your first vehicle, and see its schedule in under a minute. Free, and no account needed.