Rainbow's End Manifest
The book of your boat
$9.99 · Designed for iPad. Not verified for macOS.
Also Included In
The Coast Guard’s safety list, built from your boat and cited to the rule; where it’s stowed; the guest briefing; the log; the upkeep. One purchase, no account.
The Coast Guard’s equipment list, derived from your boat and cited to the regulation. Where each item is stowed, the briefing your guests hear, her log, and the schedule that keeps her fit, all in one book.
Enter your vessel once — length, propulsion, fuel, heads, tanks, systems — and every page derives from her. Change the boat and the book redraws.
GEAR — The federal safety-equipment checklist for your boat’s size and waters, with the 33 CFR and 46 CFR citation under every item: wearable and throwable personal flotation devices (PFDs), 5-B and 20-B extinguisher ratings, visual distress signals and their expiration rules, sound signals, navigation lights, placards, sanitation devices. A gasoline generator on a diesel boat brings the ventilation rules with it. Check each item aboard and record where it lives. Beneath the federal floor, a separate layer of what prudence adds. And a declarable inventory for clearing in abroad, shared with an official as plain text.
BRIEFING — A passenger walkthrough written from your own gear map: where things live on this boat, in the words you recorded; a MAYDAY card with your vessel’s name, call sign, and MMSI filled in; the crew-overboard drill — shout, point, throw, press; and the house rules: PFDs, tethers, and jacklines at night, offshore, and in heavy weather.
BEFORE YOU GO — A predeparture checklist drawn from her manifest, not a laminated generic: the blower on a gasoline inboard, the jacklines on a sailboat, the generator’s strainer, with the fuel and water estimates and the flare and extinguisher dates printed on the lines. The leg you log records what was checked, and the float plan is a tap away.
MAINTENANCE — Service intervals seeded and filtered to her systems: twins get port and starboard lines, each fuel separator its own. Hard legal expirations come preset — documentation renewal, EPIRB registration, flares, extinguishers. Engine items come due at whichever arrives first, the months or the hours on the meter. An Attention list shows what is expired, overdue or due soon, and four ledgers — fuel, work, ownership, cruising — tally what she costs over any dates, set against last year, and export as CSV or PDF.
LOG — The daily cruising log: legs and lay days, the persons aboard, voyages that collect entries until you end them, distance run, hours under way and engine hours, weather, a journal, and the day’s photos. Fuel and water estimates refuse to guess: top off or enter a measured level and the arithmetic runs from there; the gauge outranks the arithmetic.
ON PASSAGE — Log the departure as you leave; every day at sea counts toward the voyage and the water until you tap Arrived. At each change of watch, log the time in local or UTC, the position, course and speed, wind, sea, sky, sails, engine, and who kept it. From the second fix on, the log works out the speed and course made good, and the barometer — typed, or read from the phone’s own — shows its trend in the forecast’s words.
HER FLEET — More than one boat, each with her own complete book. Export the book to a file you control and import it on a new phone, or switch on iCloud sync and every device signed into your Apple ID keeps the same fleet, through your own iCloud.
We built it aboard our ketch Rainbow, for the boarding, the guest and the night passage.
Fully offline. No account, no subscription, no server, no tracking; nothing you enter leaves your device unless you export it or switch on iCloud sync, which keeps it in your own iCloud. Your location is read only when you tap Fill from GPS on a watch — one position, into your log, never in the background.
Manifest checks against the federal minimums — state law can add to them — and it prepares you for, never replaces, the free Coast Guard Auxiliary Vessel Safety Check. An aid to seamanship, not a substitute for it.
May you find a rainbow’s end and treasure found wherever you sail or set your anchor.
Apps for sailors, by sailors.
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The whole app is one book now. The forms you fill — the boat, the gear, the searchable log — open over the page they belong to and close with Done. The separate Editor and its tab bar are gone.
Log from any page. A Log button sits at the foot of every page: the day, a fill, the work, an expense, and the watch while a passage is open. Her papers are her papers again.
Fewer pages. Lists scroll instead of running onto "continued" pages, so the schedule is one page, each ledger one page, the gear list one. Rainbow's book goes from 51 pages to 34. The Index opens as a map of the seven sections; tap a section's count to see its pages. On the iPad the Boat section opens in two leaves.
One word for each thing: Log an expense, Where things are stowed, Before you go, Attention, wherever you meet it. The day's entry puts its fields first, with Before you go and the briefing as lines at its foot. The schedule's rows open their own notes, and the ⓘ marks are gone from them.
Rainbow says she's the sample. While she is the only boat, her page offers to set up yours; once yours has a name, the book asks once whether to keep her.
The developer, Rainbow's End Marine, LLC, 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
- Rainbow's End Marine, LLC
- Size
- 42.5 MB
- Category
- Navigation
- Compatibility
Requires iOS 16.4 or later.
- iPhone
Requires iOS 16.4 or later. - iPad
Requires iPadOS 16.4 or later. - Mac
Requires macOS 12.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- Copyright
- © 2026 Rainbow's End Marine, LLC

