01
Hours, not months
Every item you track carries the interval you set — 100 hours, one season, a date — and BoatLog counts your hour-meter entries down against it. A boat that sat on the trailer all spring is not "due" just because time passed.
ClearStack Apps
$24.99 LIFETIME Get BoatLog
BOAT MAINTENANCE LOG
BoatLog
Boat Maintenance Log
Every engine keeps its own clock.
BoatLog tracks oil, impellers, gear lube and filters against the intervals you enter from your engine manual. Punch in the hours after each outing and see what's due, engine by engine.
14-day trial, then $24.99 once,
$9.99/yr or $1.99/mo. Android.
THE PART A PAPER LOG CANNOT HOLD
Boats age by hours run, not by months
An oil interval from an engine manual is written in hours — and on a twin-rig boat the two engines never run exactly the same hours. That gap is a piece of state a ruled page cannot hold, and it is exactly what BoatLog keeps.
02
Twins stay independent
Each engine has its own hour meter and its own due list. The port impeller crossing its interval does not touch starboard's clock, so nothing gets serviced early — or worse, skipped because "the other one was fine".
03
You set every interval
From your manual, your mechanic, or your own judgment. BoatLog is a logger, not a mechanic — it never prescribes service, it tracks the plan you gave it.
TWIN OUTBOARDS, FROM THE APP'S SAMPLE DATA
- Port hours 612
- Starboard hours 588
- Port impeller Overdue
- Starboard impeller In hours
Same boat, same days on the water — but the port engine has crossed the impeller interval entered for it and the starboard one has not. Two engines, two clocks. Numbers from the app's sample data.
What it does
Six things, recorded properly. No account to make, nothing uploads.
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01
Engine-hour tracking
Set intervals from your manual — oil, impeller, gear lube, plugs — and BoatLog counts down in hours, not months.
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02
Twins and triples
Port and starboard log hours separately. One impeller can be overdue while the other still has hours left.
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03
Service records with receipts
Date, engine hours, cost, shop or DIY, parts, and up to three photos per job.
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04
Winterization checklist
A reusable checklist saved per boat, per season. Use it for lay-up and recommissioning.
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05
Safety-gear expiries
Flares and extinguishers tracked from the dates you enter, flagged in the app as they near expiry.
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06
Cost per engine hour
Total spend, spend by system, and cost per recorded engine hour — from the expenses you log.
The app itself
Three screens from the shipped build. Reel Time, Weekend Pass and the figures in them are sample data.
Scroll sideways, or use the arrow keys
Built for the drawer of receipts
- Works fully offline. No account, no cloud sync — the log lives on your phone. Fine on a mooring with no signal.
- You set every interval. From your manual or your mechanic. BoatLog is a logger, not a mechanic — it never prescribes service.
- A history you can hand over. Export the full service history with photos as a PDF for a sale or survey.
- Take your data with you. CSV export for spreadsheets and a JSON backup you can restore on a new phone are built in.
- The trial ends, your records stay. Everything you logged remains readable after the trial. Nothing is locked, hidden or deleted.
- Ten languages. English, Spanish, French, German, Portuguese, Hindi, Arabic, Japanese, Korean and Simplified Chinese.
What it costs
Fourteen days of everything when you install it, no card. After that, keep one boat going on the $0 tier or pay once and be done. The lifetime unlock is the one most people want: nothing renews.
Whichever you pick, records you already made are never locked, hidden or deleted. Your boats, engines, services and photos stay readable.
- Boats on the $0 tier1
- Service recordsUnlimited
- PDF, CSV and JSON exportPremium
- AdsBanner on $0 tier only
LIFETIME
$24.99once
Or $1.99 a month, or $9.99 a year.
- Unlimited boats and engines
- PDF service history
- CSV export and JSON backup
- No ads, priority support
Questions
Does BoatLog work offline?
Completely. There is no account or cloud sync — the log lives on your phone, and backups are files you keep.
How does it handle twin engines?
Each engine has its own hour meter in the app. Items attach to one engine and come due against that engine's hours alone.
Where do the service intervals come from?
From you. Enter what your engine manual or mechanic specifies; BoatLog tracks when each item is due from those hour or date intervals.
What happens when the trial ends?
Everything you logged stays readable. The $0 tier keeps one boat; Premium unlocks unlimited boats and exports, and removes ads.
Can I get my data out?
Yes. CSV for spreadsheets, a JSON backup you can restore on a new phone, and a PDF service history with your photos.
Is there an iPhone version?
Android only for now.
A logger, not a mechanic
BoatLog never prescribes service. It ships with no built-in intervals and makes no claim about what your engine needs — every interval it tracks is one you entered from your manual, your mechanic or your own judgment. It records what was done and counts hours and dates toward what you said comes next. The same line appears in the app and on the cover of every PDF it exports.
Start the log before the next oil change.
Add the boat, add its engines, enter the intervals from the manual — and from then on it is one hour-meter reading after each outing.
$24.99 lifetime, or $1.99 a month / $9.99 a year.