Terms of Use

Last updated: October 28, 2026

AGREEING TO THESE TERMS

You agree to these terms by tapping I Agree when you first open FlightMark. If they change, the app shows you the new version and asks you to agree again before you keep using it. If FlightMark reaches you through the App Store, Apple's Standard Licensed Application End User License Agreement also applies, and these terms add to it.

WHAT THIS APP IS

FlightMark is a personal logbook. It records the flights, hours, duty periods and credentials that you enter, and presents them back to you.

WHAT IT IS NOT

It is not an official record, not a logbook meeting 14 CFR 61.51, not a system of record for any operator, and not a substitute for the logbook, training file or certificates your employer and the relevant authority require. It is not a medical record. See the Regulatory Disclaimer.

YOUR RESPONSIBILITIES

You are responsible for the accuracy of what you enter and for keeping your own authoritative records. Verify anything this app tells you against your official logbook, your current certificates, and your operator's specifications before relying on it.

You agree not to enter information that identifies a patient, and to follow your employer's policies on patient information.

NOTHING HERE IS ADVICE

FlightMark does not provide legal, medical, regulatory or aeronautical advice. Currency, limit and certification displays are a convenience, not a determination that you are legal to fly or to work.

NO WARRANTY

THE APP IS PROVIDED "AS IS" AND "AS AVAILABLE", WITH ALL FAULTS AND WITHOUT WARRANTY OF ANY KIND. TO THE FULLEST EXTENT PERMITTED BY LAW, THE DEVELOPER DISCLAIMS ALL WARRANTIES, EXPRESS OR IMPLIED, INCLUDING THE IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, ACCURACY AND NON-INFRINGEMENT. CALCULATIONS MAY CONTAIN ERRORS, REGULATIONS CHANGE, AND OPERATOR REQUIREMENTS VARY.

LIMITATION OF LIABILITY

TO THE FULLEST EXTENT PERMITTED BY LAW, THE DEVELOPER WILL NOT BE LIABLE FOR ANY INDIRECT, INCIDENTAL, SPECIAL, CONSEQUENTIAL, EXEMPLARY OR PUNITIVE DAMAGES, OR FOR ANY LOSS ARISING FROM YOUR USE OF OR RELIANCE ON THE APP — INCLUDING ANY OPERATIONAL, EMPLOYMENT, CERTIFICATE OR REGULATORY CONSEQUENCE, AND INCLUDING LOSS CAUSED IN WHOLE OR IN PART BY THE DEVELOPER'S OWN NEGLIGENCE. THE DEVELOPER'S TOTAL LIABILITY FOR ALL CLAIMS WILL NOT EXCEED THE GREATER OF THE AMOUNT YOU PAID FOR THE APP AND FIFTY U.S. DOLLARS.

WHAT THESE TERMS DON'T TAKE AWAY

Nothing in these terms excludes or limits liability that the law does not allow to be excluded or limited, such as liability for gross negligence, fraud or intentional misconduct, and nothing waives rights you have under consumer-protection laws that cannot be waived by agreement — including the Texas Deceptive Trade Practices–Consumer Protection Act and the Arkansas Deceptive Trade Practices Act. Where a law limits these disclaimers, they apply to the greatest extent it allows.

FRIENDS, BOARDS AND BASES

Names you choose for boards, and bases you add, can be seen by everyone using FlightMark. Don't use a name, or add a base, that is abusive, hateful, sexual, threatening, misleading, someone else's, or that identifies a patient. There is no tolerance for objectionable content or abusive users. The developer may remove any name, base or entry, and stop anyone from appearing on boards, without notice. Use Report on a name or a base, or write to the address below, to flag something; reports are reviewed within 24 hours. The figures on boards come from what each person logs and aren't checked by anyone; don't rely on them for anything.

YOUR DATA

Your logbook is yours. Export it at any time from Settings, and delete it at any time from Settings → Legal & Data. The Privacy Policy explains what leaves your device.

GOVERNING LAW

These terms are governed by the laws of the State of Texas and applicable U.S. federal law, without regard to conflict-of-law rules. If you are a consumer living elsewhere, you also keep any protection your home state's law gives you that cannot be waived.

CONTACT

FlightMark is published by Dalton Underwood. Questions about these terms go to flightmarkapp@icloud.com.

REGULATORY DISCLAIMER

FLIGHTMARK IS NOT A REGULATORY RECORD

Currency, certification, flight-time and duty displays are computed from what you have entered in this app. They are a convenience for keeping track — not a determination that you are legal to fly or to work.

WHAT OVERRIDES THIS APP

Your operator's operations specifications, its approved training programme, any FAA-approved deviation, your state licensing board, and your certifying bodies all take precedence over every default in this app. Where a programme is stricter than the regulation, the programme governs. Part 135 pilots are held to 135.247 and their operator's programme rather than 61.57 (61.57(e)(3)); the app labels them that way, but can't see the programme.

WHAT THIS APP CANNOT SEE

Some requirements cannot be derived from a logbook at all. The app does not know about check rides you have not entered, letters of authorisation, medical conditions, duty limits imposed by your operator, commercial flying you didn't log here, or anything recorded only in your company's system.

NIGHT VISION GOGGLES

HNVGO status compares the operations you logged with the requirement you set for your programme. It is not a determination under 61.57(f) or your operator's NVG programme, which also require tasks this app doesn't track. Night time is not assumed to be goggle time.

NIGHT AND CROSS-COUNTRY TIME

Night time is computed from civil twilight (14 CFR 1.1) when a flight has departure and arrival times, and is otherwise what you enter. Cross-country time is logged automatically when a landing is more than 25 nm (helicopter) or 50 nm (airplane) from the departure point, the distances 61.1 uses for certificate experience; you can change it on any flight.

FLIGHT-TIME AND DUTY LIMITS

The Part 135 figures count only flights and shifts logged here. Flights without departure and arrival times are counted in full against the 24-hour limit. Your operator's records are what the FAA will look at.

BADGES

Achievement badges are a record of what you have logged. They are not qualifications and carry no regulatory meaning.

BEFORE YOU FLY

Confirm your status with your chief pilot, clinical director, or the appropriate authority. Do not rely on this app alone.