Terms of Service
Effective 8 October 2026
The plain-English rules for using CallSign. Please read them, along with the Privacy Policy, which explains how we look after your data.
1. Who We Are
CallSign is provided by Washateria LLC, 2901 Shenandoah Ave, Saint Louis, MO 63104, United States ("we", "us"). These Terms are an agreement between you and us for your use of the CallSign app on iPhone, Android and the web (the "Service"). If you do not agree to them, do not use the Service.
2. Who CallSign Is For
CallSign is a records and business tool for independent and freelance pilots and cabin crew, and for agencies and operators who work with them. You must be at least 18 years old and able to enter into a contract. If you use CallSign for a company, you confirm you may accept these Terms for it.
3. Your Account
Keep your sign-in details secret and tell us at flyguy2006@gmail.com if you think someone else has used your account. You are responsible for what happens under your account. Give us accurate information and keep it up to date.
4. Not a Substitute for Your Own Checks
CallSign helps you organise documents, trips, your logbook, weather and NOTAM information, duty and currency figures and money. It is not an approved source of aeronautical, meteorological or regulatory information and does not replace an official briefing, your operator's procedures or the regulations that apply to you.
Expiry alerts, currency, duty limits, per diem, tax and VAT figures are aids based on what you enter and on general rules. They can be wrong or out of date. As pilot in command, or as the person responsible, you must check every figure, document and briefing against the official source before you rely on it.
AI Reading (CallSign Pro) reads trip sheets, receipts, documents, flight plans and logbooks and suggests what to save. Suggestions can be wrong; nothing is saved until you check and confirm it.
5. Free and CallSign Pro
Free includes your Documents with expiry alerts and a basic manual Logbook with currency. CallSign Pro adds Trips, AI Reading, Route Briefings, Money and Invoices, Offline copies, Crew Sharing, the Lock Screen countdown, the FBO Directory and Aircraft Acceptance checks. We may change what each plan includes; if we remove a major Pro feature during a period you have paid for, we will tell you in advance.
If CallSign Pro ends, your data stays. Trips you created stay readable but cannot be edited and new Trips cannot be created until you subscribe again. Your Documents and Logbook keep working on Free.
6. Subscriptions, Trials and Payment
CallSign Pro is a subscription, monthly or yearly, at the price shown before you confirm. New subscribers may get a free trial; when it ends the subscription starts and is charged unless you cancel at least 24 hours before the trial ends.
On iPhone and iPad you pay through Apple, on Android through Google Play, and on the web through Stripe. Our subscription records are kept by RevenueCat. The store charges you, renews the subscription automatically at the same price unless you cancel at least 24 hours before the end of the period, and handles cancellation and refunds under its own rules. Manage or cancel your subscription in your Apple ID or Google Play subscriptions, or from CallSign Pro in Profile on the web.
Deleting your CallSign account does not cancel a store subscription. Cancel it first.
If we change the price, we will tell you before it applies; you can cancel before the next renewal. Nothing in these Terms affects the rights you have as a consumer under the law where you live, including any right to cancel.
7. Your Content
Everything you add (documents, files, trips, logbook entries, expenses, invoices, notes and photos) stays yours. You give us permission to store, copy, process and display it only to run the Service for you, including sending it to the providers listed in our Privacy Policy, and to share it where you ask us to (share links, crew sharing, availability links, your marketplace profile and invoices you send).
You confirm you have the right to upload what you upload, and that it does not break the law or anyone else's rights. FBO notes, ratings and files you choose to share are shown to other CallSign crew members; you can delete them at any time.
8. Shared Content
FBO Directory entries, reviews, notes and catering menus you share are seen by other CallSign crew members. Do not share objectionable content: nothing abusive, harassing, hateful, sexual, violent, defamatory, misleading or spam, and nothing that breaks the law or anyone's rights. We do not tolerate it.
Every shared item has Report and Block This Crew Member. Reported content is hidden for you straight away. We review every report within 24 hours, remove content that breaks these rules and suspend or ban the accounts that shared it. Blocked crew members' content stays hidden for you until you unblock them in Profile.
9. Acceptable Use
Do not misuse the Service: no unlawful content, no forged or altered licences or certificates, no trying to reach other people's data, no attacking, overloading, scraping or reverse engineering the Service, and no reselling it. We may suspend accounts that do, and will tell you why unless the law or safety stops us.
10. Other Services
CallSign shows information from third parties, such as weather, NOTAMs, airport and FBO data, exchange rates and maps, and connects to Apple, Google, Stripe and others. We are not responsible for their content, availability or terms.
11. Availability and Changes
We work to keep CallSign available and your data safe, but the Service is provided "as is" and "as available". It may be interrupted for maintenance or reasons outside our control. Keep your own copies of anything you must not lose; CallSign lets you export your Logbook, documents and records. We may update the Service and these Terms. If a change to these Terms is significant we will tell you in the app or by email before it applies.
12. Ending Your Account
You can delete your account at any time in Profile under Delete Account; your data and files are then deleted as described in the Privacy Policy. We may end or suspend your account if you seriously or repeatedly break these Terms, or if we stop providing the Service, giving notice where we reasonably can and a chance to export your data.
13. Liability
Nothing in these Terms limits liability for death or personal injury caused by negligence, for fraud, or any other liability that cannot be limited by law.
Otherwise, to the extent the law allows, we are not liable for decisions you make relying on the Service (including operational, flight safety, legal, tax or billing decisions), for loss of profit, income or business, or for indirect or consequential loss. Our total liability for any claim relating to the Service is limited to the amount you paid us for CallSign in the 12 months before the claim, or 100 US dollars if greater.
14. Apple App Store
If you downloaded CallSign from the App Store: these Terms are between you and us, not Apple. Apple has no obligation to provide support or maintenance and, to the extent the law allows, no warranty obligation. Apple is not responsible for claims relating to the app, including product liability, legal or regulatory compliance and consumer protection claims, or third-party intellectual property claims, which are ours to deal with. Apple and its subsidiaries are third-party beneficiaries of these Terms and may enforce them against you. You confirm you are not in a country subject to a US Government embargo and are not on a US Government list of prohibited or restricted parties.
15. Law and Disputes
These Terms are governed by the laws of the State of Missouri, United States, and its courts have jurisdiction. If you are a consumer, you also keep the protection of the mandatory laws of the country where you live and may bring a claim there.
16. Contact
Washateria LLC, 2901 Shenandoah Ave, Saint Louis, MO 63104, United States. Email: flyguy2006@gmail.com.