BoatLog: Boat Maintenance Log
Service by engine hours
Only for iPhone
Free · In‑App Purchases · Designed for iPhone. Not verified for macOS.
iPhone
BoatLog is an offline service log for boats that works by engine hours. Enter the intervals from your own engine manual once, type in the hour-meter reading after an outing, and BoatLog works out what is overdue, due soon or fine, on each engine.
WHAT IT DOES
• Engine-hour tracking for oil and filter, impeller, gear lube, fuel filters and spark plugs, each measured against the interval you set from your manual
• A separate hour clock for every engine, so on a twin the port impeller can be due while starboard still has hours left
• Items by time: annual service, winterization, anode and zinc checks
• Safety-gear expiry dates for flares, extinguishers, EPIRBs and life jackets, from the dates you record
• Service records with date, engine hours, cost, shop or DIY, parts, notes and up to 3 photos
• A winterization checklist you reuse every season, kept per boat and per year
• Costs: total spend, spend by system, a monthly trend and cost per engine hour, kept per currency
• A service-history PDF with photos, for a buyer or a marine surveyor
• CSV export, and a JSON backup that restores the whole log on another phone
• Works offline, with no account and no sign-up
Every interval in BoatLog is one you enter, from your engine manual, your mechanic or your own judgment. BoatLog is a logger, not a mechanic, and never prescribes service.
WHO IT'S FOR
Outboard, inboard, sterndrive and pontoon owners; twin and triple engine offshore boats; sailboat auxiliary diesels; trailer boats; and anyone who looks after their own boat and wants the history in one place instead of a drawer of receipts.
PREMIUM
The free version keeps one boat and up to 15 items per boat, and restores a backup. Premium adds unlimited boats and items, the PDF service history, CSV export, the JSON backup, and removes ads.
Questions or ideas? support@clearstackapps.com
SUBSCRIPTIONS
BoatLog Premium is available as a monthly or yearly auto-renewing subscription, or as a one-time lifetime purchase. Payment is charged to your Apple Account when you confirm the purchase. A subscription renews automatically unless you cancel it at least 24 hours before the end of the current period. Manage or cancel it in your Apple Account settings.
Terms of Use (EULA): https://clearstackapps.com/terms
Privacy Policy: https://clearstackapps.com/privacy
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
• Log a saltwater trip from the boat menu or the card under Due. Items set to "Due after each saltwater trip", like the new Post-saltwater flush, then come due.
• Edit an engine straight from the hours sheet.
• The item limit message now says how many items each boat holds before Premium.
• Photos you pick and then leave unsaved no longer stay on your phone.
The developer, ClearStack Apps, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Used to Track You
The following data may be used to track you across apps and websites owned by other companies:
- Location
- Identifiers
Data Linked to You
The following data may be collected and linked to your identity:
- Location
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Identifiers
- Usage Data
- Diagnostics
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- ISolution Technologies Limited
- Size
- 10.6 MB
- Category
- Sports
- Compatibility
Requires iOS 17.0 or later.
- iPhone
Requires iOS 17.0 or later. - Mac
Requires macOS 14.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
English and 9 more
- English, Arabic, French, German, Hindi, Japanese, Korean, Portuguese, Simplified Chinese, Spanish
- Age Rating
4+
- 4+
- Contains
Advertising
- In-App Purchases
Yes
- BoatLog Premium Lifetime $24.99
- BoatLog Premium Yearly $9.99
- BoatLog Premium Monthly $1.99
- Copyright
- © 2026 ClearStack Apps