Ocean Tools
Seafarers Logbook & Toolbox
$39.99
Logbook & Tools for the skipper on long trips and short legs.
The electronic logbook for the skipper.
The logbook is fully customisable and allows you to easily log events. With a fantastic light mode for daytime logging and the ingenious dark mode for night-time logging, you have your log under control at all times.
The logbook is based on the two-phase model familiar from the paper form. First, the events are logged as they occur (on a notepad). At the end of the day, the collected log entries are then transferred to the logbook. This procedure has great advantages when keeping the logbook, especially on long voyages when a trip lasts several days.
Almost everything about Ocean-Tools is unlimited, the number of logbooks, stages, log entries, crew, destinations and sails, to name just a few examples. This provides the best conditions for going on a long voyage. Ocean-Tools is also suitable for charter skippers who often change boats and crews.
Try it out, it is currently the best logbook app for skippers on the market. We are working on making Ocean-Tools even better.
more Range rings on the map: You can now display range rings on the Location Map, making it easy to judge distances to anchorages, harbours or landmarks at a glance.
Wave height from fetch: Calculations now includes a new tool that estimates the expected wave height from wind strength and fetch.
Sort your checklists: Checklists and their individual items can now be arranged manually in whatever order suits you.
Transfer to Reminders: Entries can now be transferred directly to your reminders.
Log day classification: Log days can now be classified, e.g. as sailing or harbour days. The classification also appears in the PrintLog.
More flexible PrintLog: Log days without nautical entries are now included in the printout as well. You can choose whether they appear in the print options.
Fixes
- The conversion of wind speed from km/h to Beaufort is now correct.
- Further bug fixes and optimisations for smoother sailing.
Fair winds!
V0.35 17h ago
This update focuses on improved reliability:
Improved transfer to Reminders: In rare cases, the app could freeze after transferring entries to the Reminders app. This issue has now been fixed, so everything runs smoothly.
Bug fixes and optimisations: We've fixed various minor bugs and made the app more stable and responsive overall.
Thank you for using the app! If you're enjoying the update, we'd love it if you left a rating.
V0.34.1 Oct 7
Built-in shopping list: Keep track of everything that still needs to come aboard before your next passage, right inside your logbook.
Linked with Speed Provisionings: Add your provisioning plan to the shopping list with a single tap.
Syncs with Reminders: Your shopping list is also available in the iOS Reminders app, perfect for a quick trip to the marina shop.
For iPhone and iPad: Plan comfortably on your iPad and tick items off on your iPhone while you're out and about.
Bug fixes: Various bugs have been squashed to keep everything running smoothly.
Optimisations: Improved stability and performance for an even smoother logbook.
Fair winds and following seas!
V0.34 Oct 6
What's New
Companion Mode: You can now record log entries on additional devices using a companion app from Ocean Tools and transfer them to your main device. There's no limit on the number of devices, so every crew member can add entries on their own phone or tablet. On the main device, you can then review and complete the entries and assign them to the right day in the logbook.
Import and print GPS tracks: Tracks from external GPS loggers can now be imported and assigned to a leg. You can easily trim the start and end times so the track fits exactly, and it will also appear in the printed logbook.
Shopping list in Speed Provisioning: Plan your provisions even more easily with the new shopping list, which you can export as Markdown or PDF.
Enhanced statistics: Your statistics now include additional nautical information.
Mileage log with skipper section: The sea mileage record now includes a dedicated section for skipper details.
Print checklists: Your checklists can now be printed.
Bug fixes and optimisations: We've fixed various bugs and made improvements throughout the app.
V0.33 Oct 2
Sails & Propulsion
- The fourth reef is now integrated.
- Sails can be assigned to categories, giving you a clearer overview when setting them.
- Engines can now be changed alongside the sail wardrobe.
Galley & Crew
- Recipes can now be filtered by allergens.
- The CrewPool has been completely redesigned.
- Additional details, such as smoker status, can now be recorded.
On Board & Underway
- Navigation has been rebuilt from the ground up — sluggish moments should now be a thing of the past.
- Advance warning times in Expiration Control can now be configured by group.
- Sea mile certificates can now be printed.
- "Missing at Sea" incidents can now be documented.
Alongside numerous bug fixes and refinements below deck.
V0.32 Aug 23
Islands now have their own coordinates and therefore appear directly on the map. In addition, you can store information for each island that matters when anchoring and mooring – such as prison islands, nature reserves or access restrictions.
We've also moved the app to responsive layouts: every view now adapts neatly to any screen size, from iPhone to iPad.
And, as always, this release includes numerous bug fixes and optimisations under the bonnet.
V0.31 Aug 2
All shipshape again: stages export without a hitch.
V0.30.1 Jul 25
This version introduces a range of new features for crew and logbook management:
Accident and Damage Reports: Incidents can now be recorded and documented directly within the app.
Sign On/Off Process: The sign-on and sign-off process has been newly integrated – including identification on the official crew list.
Letter of Sign On/Off: The corresponding documents are now provided directly in the app.
Change of Skipper in the Logbook: A change of skipper can now be properly documented in the logbook.
Change of Watch Leader: Changes to the watch leader can now be recorded as well.
Crew Notes: A new note-taking function for the crew – entries can optionally be shown in the printLog.
Crew Overview: In Crew4Stage, all crew actions per person are now clearly listed.
Further Improvements: Various bug fixes and optimisations ensure an even smoother experience.
V0.30 Jul 22
General bug fixes, plus improvements to data import and export
V0.29.1 Jun 27
This update brings a host of new features for crew, costs, and trip planning – along with plenty of small improvements under the hood.
Crew Management Made Easy
You can now define a permanent crew that's automatically applied whenever you create a new stage. The permanent crew is also clearly identified in the official crew list.
Better Trip Planning in Places2Visit
We've added the marina's maximum draft and linked it by color to your boat. If the draft is too shallow for a marina, the location is now flagged with a color code – so you can see at a glance where things might get tight. You can also display airports in Places2Visit now.
Enhanced Cost and Repair Management
Defects can now be assigned to a specific sail, the engine, or a CarryOn. Other costs can be linked directly to a repair and reported accordingly. We've also integrated the Ships Kitty, which you can conveniently export as a PDF or CSV.
Improved Cost Overview
The Cost Summary is now also displayed in your logbook's currency whenever possible.
Further Improvements
Various bug fixes and optimizations make for an even smoother experience.
Wishing you fair winds and following seas!
V0.29 Jun 16
This release brings a range of useful enhancements: recipes can now be conveniently copied to the clipboard, and LogEntry Defects can be supplemented with a description.
The repair list has been significantly expanded — sails, engines and carry-ons are now integrated, suitable suppliers can be added, and the lists can now be conveniently exported.
There are also new features for provisions: with initial and emergency provisions as well as speed and special provisionings, the app now covers even more scenarios. Archipelagos are displayed in a clearly grouped layout, and the new "dive site" location type opens up further possibilities.
In addition, the app has been updated to iOS 26.
V0.28 May 27
New features for your blue water voyage
Shopping lists and recipes can now be exported directly – ideal for preparation ashore and on board. Items and ingredients can be stored centrally and flexibly added to baskets and recipes. Searching recipes by ingredient makes planning even easier.
For route planning, the planning speed can now be preset automatically to half the hull speed. Distance features a new map view with great-circle distance calculation, and NauticMeteo can optionally adopt previous suggested values from the history.
Bug fixes:
Navigation errors to and from Crew4Stage, printing issues with the watch schedule, and various minor bugs have been resolved.
Fair winds and a handsbreadth of water under your keel!
V0.27 Apr 27
Split@Midnight – more precise Etmal tracking: Nautical log entries are now automatically split at midnight. The result: accurate daily distances and significantly more precise Etmal calculations for your passage analysis.
Watch schedules taken to the next level: Create, edit and print your watch schedules directly from the app – including freeform mode and additional forms for maximum flexibility.
Passage planning made easy: Assign multiple Places2Visit to a stage and export your complete passage plan as Markdown or PDF. You can also now store the stage directly within Places2Visit.
Charts with more options: Planning Map and Route Map now offer extended view options for an even better overview whilst on the water.
Smarter in the details: The default routing factor is now configurable, CarryOns can be searched by inventory number, and LogEntries now suggest the last used printOnLogbook value automatically. The Official Crew List also supports an alternative title.
Under the bonnet: Log counter progression fix and various further bug fixes for an even more stable experience.
V0.26 Apr 11
Bug fixed which, in rare cases, caused the app to freeze when assigning crew members.
And all new Features from Version V0.25
- Various bug fixes
- Added a new screen that displays the stage route so that coordinates can be corrected if necessary.
- The crew list can now be printed for active members of the stage.
- In addition to speed, a routing factor can now be specified in the trip planning to determine the duration of a leg. An "External Route Identification" has also been added so that the route in the navigation software or manual planning can be referenced.
- Distances between two locations can now be created directly from the trip planning.
Above all, PrintLog has been extensively expanded. The detailed view is now also printed out. In addition, there is a cost list, an overview of the air pressure curve and a repair list for winter storage.
V0.25.1 Mar 10
- Various bug fixes
- Added a new screen that displays the stage route so that coordinates can be corrected if necessary.
- The crew list can now be printed for active members of the stage.
- In addition to speed, a routing factor can now be specified in the trip planning to determine the duration of a leg. An "External Route Identification" has also been added so that the route in the navigation software or manual planning can be referenced.
- Distances between two locations can now be created directly from the trip planning.
Above all, PrintLog has been extensively expanded. The detailed view is now also printed out. In addition, there is a cost list, an overview of the air pressure curve and a repair list for winter storage.
V0.25 Feb 22
- Various bug fixes
- Added a new screen that displays the stage route so that coordinates can be corrected if necessary.
- The crew list can now be printed for active members of the stage.
- In addition to speed, a routing factor can now be specified in the trip planning to determine the duration of a leg. An "External Route Identification" has also been added so that the route in the navigation software or manual planning can be referenced.
- Distances between two locations can now be created directly from the trip planning.
Above all, PrintLog has been extensively expanded. The detailed view is now also printed out. In addition, there is a cost list, an overview of the air pressure curve and a repair list for winter storage.
V0.24 Feb 16
- Various bug fixes
- When anchoring, the anchor depth and the length of chain deployed can now be logged.
- In the boat, the instruments available for the weather log can be defined (e.g. hydrometer).
- At the end of a stage/passage, it can now be evaluated and commented on.
V0.23 09/15/2025
New Tool "There Local Time"
Checklists and Checkitems are available in Crew and in Stage
Layouts are now floating
Error Corrections
V0.22 09/02/2025
Small error corrections
V0.21 06/28/2025
* General error corrections
* Dew point can now be calculated
* Export of the location as GPX possible
* Planned distances are now shown in Places2Visit
* Integrated in Cast Off/Mooring, flag on roadstead
V0.20 06/16/2025
- New operating concept, the data is now saved implicitly instead of explicitly
- Deletion moved from the overview page to the details page
- For the PrintLog, new Bulett journal added so that entries from the checklists are directly visible. Will be further expanded in the future
- Logbook separated from ship, several logbooks can now be created for one ship.
- Font enlarged for easier reading
- Fuelling station information included in location
- Locations can now be marked as obsolete
- New general overview of the location in the LocationsMap, with filter option
- Distances between different locations can now be stored
- New planning option integrated for different locations to plan distances, meals, arrivals and emergency harbours
- Many bug fixes and small enhancements
V0.19 06/11/2025
- Clouds are now also labelled with a symbol
- Error in the assignment of the sorting key for sails corrected
- Minimum version is raised to V17.5 due to bug in iOS-Baro API
- Adjustment log counter introduced. Corrections for long strokes to correct inaccuracies for the ETMAL calculation.
- Introduction of the printLog. The nautical logbook can now be printed or generated as a PDF.
V0.18 06/25/2024
Bug fixing and minor improvements
V0.17 02/12/2024
Search for countries added.
Bug fixes and small improvements.
V0.16 01/27/2024
- CarryOn
- New Inventory Id integrated
- Generator for new for Inventory Id integrated.
- Search for islands extended
- A new crew member is now initially added in the selected phase.
- Dialogue for sea names revised
- Islands can now be grouped into island groups
- The intro is no longer displayed on the first call.
- New option to enter a reference in a location.
- Warning integrated by data import
- General bugfixes and improvements
V0.15 01/15/2024
Range rings on the map: You can now display range rings on the Location Map, making it easy to judge distances to anchorages, harbours or landmarks at a glance.
Wave height from fetch: Calculations now includes a new tool that estimates the expected wave height from wind strength and fetch.
Sort your checklists: Checklists and their individual items can now be arranged manually in whatever order suits you.
Transfer to Reminders: Entries can now be transferred directly to your reminders.
Log day classification: Log days can now be classified, e.g. as sailing or harbour days. The classification also appears in the PrintLog.
More flexible PrintLog: Log days without nautical entries are now included in the printout as well. You can choose whether they appear in the print options.
Fixes
- The conversion of wind speed from km/h to Beaufort is now correct.
- Further bug fixes and optimisations for smoother sailing.
Fair winds!
more Version V0.35 17h ago
Data Not Collected The developer does not collect any data from this app.