SailorsLog
Your Logbook, Beautifully Kept
Free · In‑App Purchases · Designed for iPad. Not verified for macOS.
Capture the spirit of your voyage, even miles offshore.
SailorsLog is the digital logbook designed specifically for the modern cruiser. Whether you are crossing oceans on satellite internet or island-hopping with sporadic connectivity, your entries are saved instantly on your device and synced intelligently when you are back online.
OFFLINE-FIRST, ALWAYS RELIABLE
Write detailed passage notes, log weather conditions, note your engine hour-meter readings (SailorsLog can remind you when a service is due), and document your crew – all without an internet connection. SailorsLog is "Local-First," meaning your data is stored safely on your device the moment you type it. You will never lose your thoughts to a dropped signal.
BUILT FOR SATELLITE BANDWIDTH
We know data at sea is expensive. SailorsLog uses a "Satellite-First" sync architecture. Text entries sync instantly using minimal data, while heavy photos and GPX tracks wait for Wi-Fi or your explicit command. You stay in control of your bandwidth.
TURN DATA INTO A STORY
• Rich Media: Add photos to every entry. The app automatically extracts coordinates from EXIF data to pin them to your map.
• Native Track Recorder: Tap Record before you cast off, and SailorsLog quietly captures your route in the background – even with the screen locked. When you write the entry later, the map fills itself. No chartplotter required.
• GPX Visualization: Import tracks from your chartplotter to visualize your route alongside your narrative.
• Postcards: Generate beautiful, magazine-style images of your ship or daily log to share on social media with a single tap.
LOOK BACK ON YOUR SEASON
SailorsLog adds up the numbers your logbook already holds—total distance sailed, engine hours run, passages logged, and your longest voyage. Tap to switch between All Time and This Year. The miles you've covered, ready to revisit on a winter evening.
SEAMLESS SYNC & BACKUP
Start a log entry on your iPad at the chart table, then finish it on your iPhone in your bunk. SailorsLog uses intelligent field-level conflict resolution to merge edits from multiple devices without overwriting data—even if you edited them while offline.
DARK MODE READY
Fully supports iOS Dark Mode, making it easy on the eyes during night watches or in low-light cabins.
FREE TO START, PREMIUM TO PROTECT
SailorsLog allows you to log your first 10 entries completely free—perfect for a weekend trip or a week-long charter. No account required to start.
Upgrade to Skipper to unlock the full experience:
• Unlimited Entries: Log as many voyages as you want.
• Cloud Sync & Backup: Keep your logbook safe across iPhone, iPad, and Mac.
• Family Sharing: One subscription covers your whole crew.
• Professional Sharing: Remove "Free Edition" watermarks from shared Postcards.
• Automatic Downloads: Seamlessly fetch full-resolution assets on Wi-Fi.
BUILT BY SAILORS
Created by offshore cruisers, every feature solves a real problem faced at sea: bandwidth limitations, device synchronization, and the need to document the adventure.
SUBSCRIPTION
This app offers an auto-renewable yearly subscription (Skipper). Subscription automatically renews unless cancelled at least 24 hours before the end of the current period. Manage or cancel anytime in your Apple ID settings.
Privacy Policy: https://www.sailorslog.io/privacy
Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
A quieter release: a way to look back at your season, and a little help keeping the engine on schedule.
Statistics – a new screen for the numbers your logbook already holds: total distance sailed, total engine hours, how many passages you've made, and your longest one. Tap to switch between All Time and This Year.
Engine hours made easier – jot your engine hour-meter reading at the start and end of a passage and SailorsLog works out the running time for you.
Engine service reminder – set a service interval in Settings and SailorsLog keeps a running "hours to go" count, with a gentle nudge on the Statistics screen when a service comes due. No notifications, nothing to switch on.
The developer, Lukas Spieker, 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 Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Lukas Spieker
- Size
- 5.8 MB
- Category
- Travel
- Compatibility
Requires iOS 17.0 or later.
- iPhone
Requires iOS 17.0 or later. - iPad
Requires iPadOS 17.0 or later. - Mac
Requires macOS 14.0 or later and a Mac with Apple M1 chip or later.
- iPhone
- Location
- This app may use your location even when it isn’t open, which can decrease device battery life.
- Languages
- English
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- Skipper — Yearly subscription $29.99
- Copyright
- © 2026 Lukas Spieker

