Legbook: Pilot Logbook

Support

Legbook is a flight logbook for pilots on iPhone, iPad and Apple Watch. Your logbook stays on your device; there is no account.

Contact

kiyonda69@icloud.com (English or Japanese)

Please include the app version (Settings › About), your device and its iOS / iPadOS version, and the steps that lead to the problem. Never send your logbook or backup files unless we ask for a specific problem.

Frequently asked questions

What happens the first time I open the app?

On a device with no records, Legbook opens a short setup. Choose how you start: a new logbook, continuing from a paper logbook (you then enter your previous totals), importing from another logbook or a CSV file, restoring a Legbook backup, or syncing from your other devices with iCloud (Pro). The setup then walks through your name and license, how times are shown (UTC or local time) and counted, your default role and your aircraft types; for currency it opens the Currency tab, where you create your own items. Every step can be skipped; if you skip one, “Setup” at the top of Settings lets you finish it later.

How do I pick a date?

Tap the date to open the calendar and tap a day: the calendar closes at once. Changing the month or year in the calendar’s header keeps it open.

Time zones: are my times in UTC or local time?

Times are always saved in UTC. In Settings › General › Times shown in, choose UTC or the airports’ local time. In local time, Out and Off are shown in the departure airport’s time and On and In in the arrival airport’s, including daylight saving time on that date. Switching the display never changes your saved times.

The time zone of an airport comes from the built-in airport table. For an airport that isn’t in it, add its position in Settings › Airport Locations; the time zone is then estimated from the coordinates.

How is night time calculated?

For flights with known airports and times, the app follows the great-circle route between the airports and works out the part of the flight that is in night, as well as whether each takeoff and landing was by day or by night. Choose the definition in Settings › General › Night: civil twilight (the sun more than 6° below the horizon), sunset to sunrise, or one hour after sunset to one hour before sunrise. Values calculated this way are marked “Auto”; type over them to correct them, and they stay as you typed. Nothing is calculated for simulator sessions or when an airport’s position or a time is missing.

Check that the definition you choose matches the rules of your aviation authority.

Why isn’t cross-country time filled in automatically?

Cross-country definitions differ between authorities (distance, landing at another airport, purpose of the flight …). The app therefore never assumes it: a new flight starts with cross-country 0, and you enter the time that counts for you.

Can I add my own columns?

Yes. In Settings › Custom Fields, add fields of five kinds: time (h:mm, totaled), count (totaled), text, choice, and yes / no. Choice and yes / no fields can filter totals and currency requirements. Hide standard columns you don’t use. Columns such as single-pilot / multi-pilot time or PICUS can be added as time fields, and used as a role when logging.

How do currency rules work?

In the Currency tab, create the requirements you need: a number of days, and what is needed within them — takeoffs, landings (day or night), approaches, hours, or a custom field. Limit a requirement to aircraft types, tags or custom field values if needed. The app shows whether each requirement is met and until when. Add expiry dates (medical, checks, ratings) on the same screen. The app ships no country’s rules: you decide what to track.

Can I import my logbook from another app or a spreadsheet?

Yes. Export your logbook from the other app or spreadsheet as CSV or XLSX (.xlsx), then use Settings › Import from Another Logbook. The app suggests which column goes where (date, airports, times, roles, landings …); check and adjust the mapping, review the result, and import. Durations can be h:mm, decimal hours or minutes. Old .xls files, password-protected files and spreadsheet-app native formats must first be saved as .xlsx or CSV.

Tip: before a large import, make a backup (below).

I used the Japanese edition (飛行日誌JP). Can I move my logbook?

Legbook can’t read backups of the Japanese edition: Settings › Backup › Restore refuses them and changes nothing. You can bring your flights over as a CSV or XLSX file with Settings › Import from Another Logbook, checking the column mapping before you import.

How do I back up my logbook?

Settings › Backup › Export writes one file with all your data; keep it somewhere safe (for example in the Files app or on a computer). Restore replaces the data with a backup file made by Legbook. The app also keeps automatic snapshots on the device (Settings › Backup) to undo a large change. While iCloud sync is on and working, the app doesn’t remind you to export a backup, because your data is also kept in your own iCloud — but a sync is not a backup: a deletion is synced too, so export a backup now and then.

How does iCloud sync work? (Pro)

Turn it on in Settings › iCloud Sync on each iPhone and iPad signed in to the same Apple Account. Your data is stored in your own iCloud; the developer can’t see it.

What is free and what is Pro?

The free version records up to 50 flights. Pro is a one-time purchase: pay once and keep it, no subscription. It adds unlimited flights, iCloud sync, the widgets, the Apple Watch app and complications, totals by type, category and class, the all-time map and expiry reminders. Without Pro — at the limit — you can still view, edit, export and back up all your flights; you just can’t add new ones.

I subscribed to Pro before. What happens now?

Pro was an annual subscription before version 1.1. If you ever subscribed, Pro stays yours for good — you don’t need to buy it again. You can cancel the annual subscription so it no longer renews: on your iPhone or iPad, open Settings › [your name] › Subscriptions, or the App Store › your account picture › Subscriptions. For a refund, use Apple’s “Report a Problem” (reportaproblem.apple.com). To restore Pro on a new device, use Restore Purchases in the app’s Pro screen (Settings › Pro).

The Apple Watch app shows “Open Legbook on your iPhone”

Open the app on the iPhone once while the watch is nearby; the iPhone then sends your data to the watch. The watch app only shows data — flights are entered on the iPhone or iPad.

Is this an approved logbook?

No. Legbook is an unofficial app made independently. It is not affiliated with, approved or endorsed by any civil aviation authority. You are responsible for checking that your records, totals and exported files meet your authority’s requirements, including whether they can serve as a legal logbook.

Data sources and licenses

Trademarks

Apple, Apple Watch, iCloud, iPad, iPhone and App Store are trademarks of Apple Inc., registered in the U.S. and other countries and regions.

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