These terms are the agreement between you and Geist Labs LLC ("Team Hadar", "we", "us") for your use of Hadar in a web browser. By using Hadar, you agree to them. If you do not agree, do not use it.
These terms cover the Hadar you open in a browser. There is a separate Android application with its own terms, shown inside that app.
1. What Hadar is
Hadar is a reference tool for airline pilots. It reads documents you already have, does arithmetic on them, and shows you the result at a glance — your pay, your schedule, your duty and rest limits, your logbook.
2. What Hadar is not
Hadar is not an authority, and it is not a record. This is the most important term in this document.
- Hadar does not determine your pay. Your pay is determined by your collective bargaining agreement and your employer's official pay systems. Hadar's numbers are estimates for your own understanding, and where they disagree with an official statement, the official statement is what counts.
- Hadar does not determine your legal duty, flight time, or rest limits. Those are set by federal regulation and your employer's official systems, both of which your employer already monitors. Hadar's calculations are a convenience, not a clearance.
- Hadar is not your official logbook of record unless you choose to treat it as one, and you are responsible for the accuracy of anything you record in it.
- Hadar does not give legal, financial, tax, or employment advice. If you believe you have been paid incorrectly, the route to fix that runs through your contract and your union, not through Hadar.
- Hadar's output is not evidence. Do not submit a Hadar number, screen, or export in a pay claim, a grievance, a schedule dispute, or any other formal proceeding, and do not rely on one in place of the official record. Hadar is a place to notice that something looks worth checking — check it against the official source, and cite that source, not this tool.
You are responsible for verifying anything that matters against the official source before acting on it. Hadar is designed to be glanced at, never to be obeyed.
3. Independence
Hadar is an independent product. It is not affiliated with, endorsed by, or sponsored by Delta Air Lines, Inc., the Air Line Pilots Association, the Federal Aviation Administration, or any airline, union, or government agency. All trademarks, airline names, and document names belong to their respective owners and are used only to describe what Hadar reads.
4. Your responsibility as an employee
You are responsible for your own compliance with your employer's policies, your collective bargaining agreement, and any applicable regulation regarding the use of third-party applications and the handling of company documents. Only put a document into Hadar if you are permitted to have it and to process it this way. Do not use Hadar in any manner or at any time that conflicts with your employer's policies or with the safe conduct of a flight.
5. Your data, your documents, and your backup
You keep ownership of everything you put into Hadar. You grant us only the narrow permission needed to process a document you submit, for the moments it takes to process it, and to return the result to you. We do not store your documents, and we claim no other rights in them.
If you switch on the optional backup, you additionally ask us to hold a copy of your own data that your browser has already locked with a key we never receive. We store it, hand it back when you ask, and delete it when you turn the backup off. We cannot read it, and we cannot recover it for you if you lose your recovery code. How all of this works in detail is set out in the Privacy Policy, which forms part of these terms.
6. Your recovery code
Hadar gives you one code. It signs you in and it unlocks your backup, and we never receive it.
- Keeping it safe is yours. Anyone who has it has your account and your backup.
- Losing it cannot be undone by us. We hold nothing that identifies you, so there is nothing to reset an account against and no key to open a backup with. If you lose it, both are gone permanently. This is not a limitation we can waive on request.
- Treat the code the way you would treat the only key to a safe deposit box, because that is precisely what it is.
7. Free use, ads, and removing them
- Hadar is free to use. Some pages can be opened for an hour by choosing to watch a short ad.
- Ads are provided by Google. We don't choose individual ads and don't endorse what they advertise.
- A subscription removes the ads while it is active. The price is shown before you buy.
- Subscriptions are billed through Stripe and renew automatically until cancelled.
- You can cancel at any time in Account. Cancelling stops the next renewal; you stay ad-free to the end of the period already paid for. Refunds are given only where the law requires them.
- We may change the price for future periods. If we do, we will tell you before it applies to you, and you may cancel.
- What is free, and what the subscription includes, may change as Hadar develops.
8. Acceptable use
Hadar is licensed to you personally, for your own professional use. You may not:
- resell, sublicense, rent, or share access with others
- copy, scrape, or redistribute Hadar's data, calculations, or outputs as a competing product or service
- reverse-engineer, decompile, or attempt to extract the calculation logic, except to the extent that applicable law expressly permits it
- attack, overload, or attempt to gain unauthorised access to our servers
- upload material you have no right to possess or process
9. Availability and change
Hadar is a small, independently built product. We do not promise uninterrupted availability. We may change, suspend, or remove features — including features you rely on — as Hadar develops, as the documents it reads change, or as the services it depends on change or disappear. Where a change would remove something you have paid for, we will give you notice and you may cancel.
10. Disclaimer of warranties
Hadar is provided "as is" and "as available", without warranty of any kind. To the fullest extent permitted by law, we disclaim all warranties, express or implied, including any warranty of merchantability, fitness for a particular purpose, accuracy, or non-infringement. We do not warrant that Hadar's calculations are correct, that it will be available when you need it, or that it will be free of errors.
This includes the backup. We take reasonable care of it, but you should keep your own copy of anything you cannot afford to lose — Hadar's logbook exports exist for exactly that.
11. Limitation of liability
To the fullest extent permitted by law, we are not liable for any indirect, incidental, consequential, special, or punitive damages, or for any lost pay, lost income, lost opportunity, missed trip, disciplinary consequence, regulatory consequence, or loss of data, arising out of or relating to your use of Hadar — including any loss arising from a number Hadar displayed being wrong.
Our total liability for all claims relating to Hadar is limited to the greater of (a) the amount you paid us for Hadar in the twelve months before the claim arose, or (b) twenty United States dollars.
Some jurisdictions do not allow certain limitations, and nothing in these terms limits liability that cannot lawfully be limited, including liability for death or personal injury caused by negligence, or for fraud. If you are a consumer, you keep any non-waivable rights your local law gives you.
12. Indemnity
You agree to indemnify and hold us harmless from claims, losses, and expenses arising from your misuse of Hadar, your breach of these terms, or your violation of your employer's policies or applicable law.
13. Termination
You may stop using Hadar at any time: cancel any subscription, turn the backup off, sign out, and clear your browser's data. We may suspend or terminate access if you materially breach these terms, or if we discontinue Hadar. Sections 2, 3, 5, and 10 through 15 survive termination.
14. Disputes
Before filing anything, please email us. Nearly every dispute about a pay calculation turns out to be a parsing bug we would rather fix than argue about. We will make a genuine effort to resolve your issue within 30 days.
15. Changes to these terms
We may update these terms. If a change materially affects your rights, we will tell you on the site before it takes effect. Continuing to use Hadar after that means you accept the updated terms. The effective date at the top always reflects the current version.
16. Entire agreement
These terms and the Privacy Policy are the entire agreement between us about Hadar. If any provision is held unenforceable, the rest remains in force.