Privacy
Study With or Without an Account.
You can use Operator Master without an account. If you choose to sign in with Apple or Google, Operator Master saves your email address and your study progress so it can follow you between devices.
Information kept on your device
Study preferences, progress, results, and unsent question reports may be stored locally so the app can resume and work reliably. Removing the app or clearing its data may erase that information.
Optional account
When you sign in, Operator Master stores your email address, a sign-in identifier from Apple or Google, and your study progress (study settings, questions you’ve practiced, scores and results). This information is stored with our database provider, Supabase, in the United States. You can delete your account and the progress saved to it at any time from the Account page.
Email updates
If you sign up for email updates, Operator Master stores your email address, where on the site you signed up, the state or province and language you chose on that device, and the date. It is stored with Supabase in the United States and used only to tell you about new questions and courses. It is not sold or shared. To stop getting emails or have your address removed, email support@operatormaster.com.
Course records
When you take a continuing-education course, Operator Master also keeps a course record: your learner ID, the name and optional operator certificate number you give for your certificate, the time you spend on each page (logged by our server), your final assessment result, and any certificate of completion. Course approvers require these records, so they are kept for at least seven years after you finish a course, even if you delete your account. Anyone with a certificate number can check that the certificate is real; that check shows the name, course, dates and time on the certificate.
How sign-in information is used
Operator Master uses the information it receives from Apple or Google only to sign you in and keep your progress with your account. It is not used for advertising, and it is not sold or shared with anyone else except the service providers that run Operator Master.
Ask Klok
Ask Klok answers come from Claude, an AI made by Anthropic. When you ask, Operator Master sends Anthropic your question and what it is about: the practice question and your answer, or your last few messages in the chat. Your name and email are not sent. Operator Master keeps Klok's answers to practice questions so the same answer can be shown again, plus a count of the answers you have used and any rating or report you give an answer. It does not keep your chat messages. Anthropic's commercial privacy terms apply to what it receives, and Anthropic does not use it to train its AI. The app asks your permission before the first question you type goes to Klok.
Payments
Purchases are made on the website, never inside the app, and are processed by Stripe. Stripe collects your card details; Operator Master never sees or stores your full card number. Operator Master keeps a record of what you bought, when, and Stripe's reference for the payment so it can unlock it on your account and handle refunds.
Question reports
A submitted report may include the question ID, certification level, study mode, topic, report category, your written description, content version, and timestamps. Your selected answer and score are not attached. Do not include private plant information or a real exam question.
Service and diagnostic data
Hosting and measurement services may process limited browser, device, and network information needed to operate, secure, and understand use of the service. The question-report record is not designed to store your IP address.
Heatmaps and visit recordings
On the website, Operator Master uses Microsoft Clarity to see how pages are used: where people click, how far they scroll, and recordings of visits with the text people type hidden. Pages that show your account, notes, name or certificates are not recorded with their text. Clarity may set cookies, and Microsoft's privacy statement applies to the data it collects. Operator Master uses it only to make the site easier to use.
Sharing and sale
Operator Master does not sell personal information. Data may be processed by service providers used to host, secure, measure, or maintain the product, or disclosed when legally required.
Your choices
You may use the study experience without submitting a question report. You can also clear locally stored data through your device or browser settings. You can sign out or delete your account from the Account page. Deleting your account does not remove progress already stored on your device, or course records that must be kept.
Last updated October 23, 2026.
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