The owner's manual for everything you own
Track maintenance by hours, miles or age. Plan for the money before the bill lands. Upload the manual once and let it turn into a schedule.
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Maintenance Tracking
Log a task once and stop carrying the schedule in your head. The Wrench reminds you while the job is still maintenance and not a repair.
- Tracked by time and by use. Hours, miles or age on one side, calendar dates on the other. Get notified by whichever comes due first.
- The control of a spreadsheet without the upkeep. Priority, cost estimate and status at a glance. Sort, filter and export when you need the full record for a budget, an insurer or a buyer.
- Component tracking. The impeller on your boat, the transmission in your car, the chain on your bike and the water heater in your house. Get reminders for the parts you depend on most.
Maintenance
Across everything you own
Active
12
Due soon
2
Done
34
How Tracking works
Enter your last service
Enter the last time each job was done. A date, a meter reading or your best estimate. The Wrench counts forward from there.
Log your usage
Log hours or miles after each use, and progress is tracked automatically. Items on a calendar interval advance on their own.
Get notified
Alerts arrive before the emergency does. Order the part, book the shop or complete the work yourself.
Do the work, log it
Mark the job complete and the interval resets. The next alert is already scheduled.
Education is the first step
Nobody takes care of something they don't understand. Once you understand what you own, everything downstream gets easier: the care, the schedule and the money.
Know the systems you own and what each one actually does.
Care follows understanding. That part is automatic.
Turn care into a schedule, with reminders that arrive before the breakdown.
Put money aside for the next job so the bill never surprises you.
Education is the
first step
Nobody takes care of something they don't understand. Once you understand what you own, everything downstream gets easier: the care, the schedule and the money.
Know the systems you own and what each one actually does.
Care follows understanding. That part is automatic.
Turn care into a schedule, with reminders that arrive before the breakdown.
Put money aside for the next job so the bill never surprises you.
…and the next repair teaches you something new, so the loop starts over.
Rheem RTGH-95 · Owner's manual
Found in the manufacturer's table
Suggested tasks
4 of 6 approved
Flush heat exchanger
12 moDescale & clean inlet filter
12 moInspect burner assembly
24 moReplace anode rod
36 moCheck pressure relief valve
12 moVerify gas pressure
24 moAlso analyzed: Yanmar 3YM30 · Shimano XT groupset · Toyota 4Runner
Your Manual, Decoded
Upload the owner's manual for anything you own as a PDF. The Wrench reads the manufacturer's maintenance schedule and highlights the intervals worth tracking.
- Reads the manufacturer’s own service schedule and suggests intervals for you to review
- Works with any manual: marine engines, vehicles, bikes, appliances and home systems
- Approve the intervals that apply. Each one becomes a recurring task you never have to schedule again.
- One upload replaces an evening with a 200 page service manual
No More Unexpected Costs
Link a savings goal to an expense you already know is coming, like a new set of tires, a roof replacement or a haul-out. Fund it over months instead of absorbing it in one week.
- Projected growth with compound interest, over any time horizon you set
- Daily and monthly targets calculated from the goal and the date
- A daily check-in that builds the habit, with streaks to keep it going
Water heaters retire around year 10 and the swap runs about $1,800. Put away $15 a month from day one and it's covered.
Your Daily Savings Target
$42.50
All goals saved for today
Hundreds of articles. Zero gatekeeping.
A built-in reference library organized around the systems that make up what you own. Search by topic or browse by system.
- Every category we launch ships with its own library
- Ten system categories for boats: Engine, Electrical, Plumbing, Hull & Keel, Rigging & Sails and more
- Plain English definitions that explain what each part does and why it matters
- Categories mirror your Inventory, so you can read about a system then track the parts in it
Engine
24 articles
Electrical
18 articles
Hull & Keel
15 articles
Plumbing
12 articles
Rigging & Sails
19 articles
Safety Gear
11 articles
Engine
Raw Water Cooling Systems
Your engine pulls seawater through a strainer, past the impeller, and through the heat exchanger. Understanding this flow helps you spot blockages before they cause overheating.
Everything you need to manage what you own
Twelve integrated tools covering every part of ownership.
Maintenance
Tasks tracked by hours, miles, age or calendar dates with automatic reminders.
Manual Analyzer
Upload a PDF of a manual and identify which tasks to track.
Financial planning
Savings goals with compound interest projections up to 10 years.
Trip logs
Log routes, fuel and usage for every trip or ride.
Fleet management
Detailed profiles with component tracking and total fleet value.
Operations log
Expense tracking with tax deductions and 7 analytics views.
Documents
Encrypted storage for manuals, insurance and registrations.
Calendar
Events, services and renewals in one place.
Inventory
Track every part, spare and component by system.
Education
Hundreds of articles organized by the systems your things are built from.
Weather and tides
Live wind, waves and tide data where you keep it.
BoatsProvisioning
Calculate meals and water from trip length and crew size.
Boats and bikesCategories
We started with the hardest thing to own: a boat. A boat lives in salt water and tries to sink every day you are not looking, and a system that keeps one alive can keep anything alive. Bikes are live now. Homes, cars and motorcycles are in beta, and more categories are on the way. Open a category to see what is included and what it costs.
Free
Freeforever
Everyone gets
- 1 boat, 1 engine
- Maintenance tracking, 10 tasks
- Calendar and education library
- Inventory and trip logs, 10 a month
- Manual Analyzer, 5 reads a month
- 200 MB documents
Essentials
$7.99/mo
Everything in Free, plus
- A second engine
- 30 maintenance tasks
- Unlimited trip logs and inventory
- Provisioning
- Manual Analyzer, 10 reads a month
- 1 GB documents
Unlimited
$14.99/mo
Everything in Essentials, plus
- 2 boats, unlimited engines
- Unlimited maintenance tasks
- Unlimited savings goals
- Unlimited receipt scanning
- Data export and priority support
- 5 GB documents
Beta categories need an invite code. Waitlist categories email you the day they open.
Frequently asked questions
Everything you need to know about The Wrench.
The Wrench is built for owners who want a clear, organized approach to what they own and what it costs over time. From your first big purchase to a full collection, it helps you stay on top of maintenance, control expenses, plan ahead for major costs, and keep every record in one place.
The Wrench provides maintenance tracking, financial planning with compound interest projections, inventory management, document storage, usage logging, a calendar, expense tracking with analytics, and educational resources on how your equipment works and what it needs.
Absolutely. The Wrench includes plain-English content on how your equipment works and what it needs. The guided setup walks you through adding what you own and building its maintenance schedule. You don't need to be an expert. You learn as you go.
Start by adding what you own in the Fleet section, with the details and current usage for each. From there, head to Maintenance to set up your recurring tasks, and visit Financial Planning to start saving for upcoming expenses. The Dashboard pulls it all together at a glance.
The Maintenance Schedule is for larger projects, anything worth budgeting for or handing to a professional. The Usage Tracker ties tasks to hours or miles and updates automatically as you log use. The Checklist is for routine upkeep on a set cadence, the smaller, inexpensive jobs that rarely need a pro.
A few ways. Savings goals with compound interest projections help you plan ahead, so steady saving offsets future maintenance costs. Our education content builds the confidence to handle routine work yourself, saving time and money and catching small problems before they get expensive. You can also track tax-deductible expenses for anything used in business.
The Wrench goes beyond basic maintenance tracking by pairing service schedules with financial planning, and it teaches you what you're maintaining and why it matters. It's built to help you plan ahead and manage what you own with confidence.
Yes. The Free plan includes the core maintenance, financial planning, and education features. The Wrench is a self-funded project, and our pricing is designed to stay accessible while supporting long-term, responsible development without selling user data.
Absolutely. Your documents are encrypted. We will never sell your data.
Yes. The Wrench has a native iPhone app on the App Store, and the web app works in any modern desktop or tablet browser. An Android app is not available yet.
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