Privacy Policy

What our calculators do

Any calculator on this site runs entirely in your browser using JavaScript. The numbers you type, such as a position size or a gold price, stay on your device and are never transmitted to our server or any third party.

This means we cannot see your calculations, and we do not store them. You can use the tools without an account and without providing any personal information.

What we collect

We collect only aggregate traffic counts, such as the number of visitors to a page in a month. We do not collect names, email addresses, or IP addresses, and we do not build profiles of individual readers.

Our hosting provider may keep standard server logs, but we do not use them for anything other than security and performance monitoring. We do not sell or share any data.

Local storage and broker cookies

We use local storage in your browser to remember your own preferences, such as a dark mode setting or a preferred currency display. This data never leaves your device.

If you click an affiliate link to a broker, that broker may set its own cookies under its own privacy policy. We do not control those cookies, and you should read the broker's policy before you proceed.

What Practice Ounce Stores and What It Never Sees

Practice Ounce stores only the preferences you set on this device, such as your chosen language or display theme, and only when the tool needs them to work correctly. Nothing you type into a calculator is written to our servers, and no account profile is created for you. The site does not keep a copy of your trades, your balance, or your broker login details. If a feature does not require a preference to function, it is not stored at all, so most visits leave no lasting record beyond a basic server log entry that contains no personal identifier.

The site never sees your broker credentials, your payment card numbers, or your bank account details, because those are entered only on your broker’s own pages after you leave Practice Ounce. We do not have a login system, so there is no password or email address tied to your use of the calculators. When you open a broker link, that broker may ask you to sign in or create an account, but Practice Ounce is not part of that process and receives no data from it. Any information you give FxPro or another broker belongs to that broker alone.

What the site does store is limited to a few small text files in your browser, known as local storage, and these hold only calculator settings like your last selected lot size or currency. These files stay on your device and are never transmitted to us in a readable form. If you clear your browser data, every stored preference is deleted immediately. Practice Ounce does not use hidden tracking pixels, fingerprinting scripts, or any method that rebuilds your identity after you clear cookies, because the calculators do not need to know who you are.

The Three Kinds of Cookies This Site Uses

Practice Ounce uses three kinds of cookies, and each one serves a separate purpose that is easy to check in your browser settings. The first kind is strictly necessary cookies, which keep the page working while you move between the calculator and the explanation sections. Without these, your inputs would be lost every time the page reloaded, so they are set as soon as you open the site and cannot be switched off. They contain no advertising data and are not shared with any third party.

The second kind is preference cookies, which remember choices you make so the site feels the same on your next visit. For example, if you select a light or dark display, a preference cookie saves that choice, and it is read only by your own browser. These cookies are optional, and you can block them without breaking the calculators; the only effect is that your preferences reset each time you close the tab. They expire after a set period or when you manually clear them, whichever comes first.

The third kind is broker cookies, which are set only if you click a link to FxPro or another listed broker. These cookies are created by the broker’s domain, not by Practice Ounce, and they exist to track that you arrived from this site. Their purpose is limited to affiliate attribution, which is explained in the next section. Practice Ounce cannot read the contents of these cookies, and they do not affect the way the calculators behave on this site. You can delete them at any time without losing anything you need here.

Affiliate Links and How They Are Tracked

Practice Ounce earns a commission when a reader opens a broker account through one of the links on this site, and that commission is recorded with a simple affiliate cookie. The cookie does not contain your name, email address, or any other personal detail; it only tells the broker that your visit started on Practice Ounce. If you do not open an account, the cookie expires on its own and no commission is paid. The calculators and the educational text work exactly the same whether or not you ever click a broker link.

Every broker link on Practice Ounce is marked as an affiliate link, either in the text near the link or in a clear disclosure at the top of the page. This means that if you follow the link and later fund a trading account, the broker may pay us a fee. That fee does not change the price you pay, and it does not affect the spreads or commissions the broker shows you. Practice Ounce does not receive a bonus for directing you to one broker over another beyond the standard affiliate arrangement, and we do not rank brokers based on payout size.

The affiliate cookie set by a broker is not readable by Practice Ounce, and we never learn whether you opened an account or how much you deposited. The broker may share aggregate, anonymous statistics with us, such as the total number of clicks from this site, but those reports contain no individual data. You can avoid affiliate tracking altogether by typing the broker’s web address directly into your browser instead of clicking a link on Practice Ounce. If you do click, the cookie can be deleted from your browser settings at any time.

Third Parties That Receive Data From Your Visit

The only third parties that receive data from your visit to Practice Ounce are the brokers whose links you choose to follow, and the analytics provider described later on this page. When you click a broker link, your browser sends a request to that broker’s server, and the broker sees the same technical information any website sees: your IP address, browser type, and the page you came from. Practice Ounce does not send your calculator inputs or any stored preferences to the broker, because those remain on your device.

If you use a local UAE bank transfer to fund a broker account, your bank and the broker’s payment processor are also involved, but Practice Ounce is not part of that chain. We never see your bank details, and we do not receive confirmation of your transfer. The broker may use its own third-party services for identity verification or payment processing, and those services operate under the broker’s privacy policy, not this one. Practice Ounce has no access to the data those services collect, and we cannot change or delete it on your behalf.

The analytics provider used by Practice Ounce receives only a small amount of technical information, such as the pages you view and the time you spend on them, but it is configured to discard your IP address before storing the data. That means the analytics reports show aggregate behavior, like how many people used the lot size calculator, without identifying any individual. No advertising network, social media platform, or data broker receives information from this site, because Practice Ounce does not run ads or sell visitor data to anyone.

Your Rights Over Data and How to Exercise Them

Because Practice Ounce stores almost no personal data, most data protection rights are easy to exercise on your own. You can delete every cookie and local storage item this site has placed by using the clear browsing data function in your browser, and no copy remains on our servers. If you want to confirm what is stored, open your browser’s developer tools and view the cookies and site data for this domain; you will see only the preference items described earlier. There is no need to submit a formal request for deletion of calculator inputs, because they were never transmitted.

If you believe Practice Ounce holds any personal data about you, you have the right to ask for a copy, to request correction, and to request deletion. You can send such a request to the contact address listed on the site, and we will respond within the time required by applicable law. Because the site does not require registration, we may ask you to describe what data you think we hold and how you interacted with the site, so we can search the limited records we keep. We will not ask you to pay a fee for a basic request, and we will not require excessive identification for a site that holds no profiles.

You also have the right to object to the processing of your data for direct marketing, but Practice Ounce does not send marketing emails or targeted advertisements, so there is nothing to object to on that front. If you follow a broker link and later want to stop that broker from using your data, you must contact the broker directly, because Practice Ounce cannot act on your behalf. For readers in the UAE, the relevant data protection framework may include federal law and any applicable financial free zone regulations, but the practical steps above work regardless of your location.

Retention Periods and What Triggers Deletion

Most data on Practice Ounce is deleted automatically when you close your browser, because the calculators use session storage that disappears at the end of each visit. The preferences saved in local storage remain on your device until you clear them manually or until the browser’s storage limit is reached and older items are removed. Server logs, which record only technical details like page requests, are kept for a short period to ensure the site stays online and secure, and they are then overwritten or deleted. No calculator input is ever written to a long-term database.

Affiliate cookies set by brokers have their own retention periods, which are controlled by the broker and typically range from a few days to several weeks. Practice Ounce does not extend or shorten these periods, and we cannot delete a broker’s cookie from your browser; only you can do that through your browser settings. If you never click a broker link, no affiliate cookie is created, so there is nothing to expire. The analytics provider stores aggregated, anonymous data for a limited time, and that data cannot be linked back to any individual visit.

If you send a message to Practice Ounce through the contact form or email, we keep that message only as long as needed to answer your question, and then it is deleted. We do not add your email address to a mailing list, and we do not use your message for any purpose other than replying to you. In the rare case that a legal obligation requires us to keep a record, such as a security incident report, we store it for the minimum period required by law and then destroy it. You can request confirmation of deletion at any time, and we will tell you what was removed.

What the Calculators Do With the Numbers You Type

Every number you type into a Practice Ounce calculator is processed entirely inside your own browser, using JavaScript that runs on the page. The gold margin calculator, for example, takes your lot size and the reference price of about 4275.0 and multiplies them by the contract size of 100 ounces to show the notional value. That calculation happens on your device, and the result is displayed on screen. No part of the input or the output is sent to a Practice Ounce server, so your position size and intended trade are never stored or transmitted.

The calculators do not use the numbers you enter to pre-fill forms on broker sites, and they do not pass your inputs through the link when you click to a broker. If you type 0.10 lots into the margin calculator and then click a FxPro link, the broker’s page opens without any knowledge of what you calculated. This separation is deliberate: the calculator is a learning tool, not a trade ticket. You can test as many scenarios as you like, including extreme leverage figures, without any record being kept or any effect on your broker account.

Because the calculations are local, you can use the tools offline after the page has loaded, and you can clear your browser data without losing any saved results, because no results are saved. The only exception is the preference setting for your last used lot size, which is stored locally so the calculator opens with a convenient default on your next visit. That preference contains no personally identifiable information and can be removed by clearing site data. Every formula used by the calculators is shown on the page, so you can verify the math yourself with a simple calculator.

What Leaves Your Browser When You Follow a Broker Link

When you click a broker link on Practice Ounce, your browser sends a request to the broker’s website, and that request includes your IP address, the type of browser you are using, and the address of the Practice Ounce page you were on. This information is sent automatically as part of how the internet works, and it lets the broker know that you arrived from this site. The request does not include your name, your calculator inputs, or any personal data stored on Practice Ounce, because those details are never attached to the link.

If the broker’s site sets an affiliate cookie, that cookie is stored on your device by the broker’s domain, and it contains a unique identifier that links your visit to Practice Ounce. The cookie does not contain your trading activity, your balance, or your identity; it simply records the referral source. When you later open an account or make a deposit, the broker checks for that cookie to determine whether a commission is due to Practice Ounce. You can see this cookie in your browser’s cookie list under the broker’s domain, and you can delete it at any time.

No data is sent from your browser to Practice Ounce when you click a broker link, because the link points directly to the broker, not back to us. Practice Ounce learns only that a click occurred, through an aggregate count that the broker may report, but not who clicked or what happened next. If you are concerned about revealing your IP address to a broker, you can type the broker’s address manually or use a VPN, but the technical request will still be necessary to load the broker’s page. The choice to follow a link is always yours, and the calculators remain fully functional without ever leaving Practice Ounce.

Analytics That Count, Not Identify

Practice Ounce uses a privacy-focused analytics tool that measures only aggregate behavior, such as the number of visitors to the margin calculator page or the average time spent reading an article. The tool is configured to anonymize your IP address before it is stored, so the analytics database contains no record of your specific visit. It does not use cookies, and it does not track you across different websites. The purpose of this data is to see which explanations are most helpful and which parts of the site need improvement, not to build a profile of any reader.

The analytics tool deliberately does not measure several things that many websites track. It does not record your mouse movements, your keystrokes, or the exact numbers you type into a calculator. It does not capture your screen resolution, your device serial number, or any identifier that could be used to recognize you on a later visit. It does not connect your activity on Practice Ounce to your activity on broker sites, because the broker links are not tagged with analytics parameters that would allow such a connection. The tool simply counts page views and basic navigation patterns.

Because the analytics data is aggregated and anonymous, you cannot be identified from it, and there is no personal data to correct or delete. If you want to prevent even this limited measurement, you can use a browser extension that blocks analytics scripts, and the site will continue to work normally. Practice Ounce does not use any form of fingerprinting, which is a technique that identifies browsers based on their unique configuration, because that would be unnecessary for a site whose goal is education. The analytics reports are seen only by the site operator, and they are never sold or shared with advertisers.

Children and Access to This Site

Practice Ounce is not intended for children, and the calculators and educational content are designed for adults who are considering or already engaged in trading. The site does not knowingly collect any personal data from children, and because it requires no registration or age verification, it cannot determine the age of a visitor. If you are under the age of 18, you should not use this site, and you should not provide any information through the contact form or by clicking broker links. Trading is a financial activity with legal age requirements in most jurisdictions, including the UAE.

The content on Practice Ounce includes discussions of leverage, margin, and risk that may not be suitable for younger readers, but the site does not contain material that is legally restricted to adults. We do not use age-gating pop-ups or require a date of birth, because the site collects no personal data that would make such checks meaningful. Parents or guardians who believe a child has used this site can clear the browser data on the child’s device to remove any stored preferences, and no further action is needed because no account exists.

If we become aware that a child has submitted personal data through the contact form or any other channel, we will delete that data as quickly as possible. Because the site does not market to children and does not run advertising aimed at minors, the risk of such data collection is minimal. For readers in the UAE, the legal age for entering into financial contracts is generally 21 under civil law, though some free zones may set different thresholds, and brokers have their own age verification procedures. Practice Ounce encourages all visitors to confirm their eligibility with the broker before opening an account.

How You Will Learn About Changes to This Policy

When Practice Ounce changes this privacy policy, the new version will be posted on this page with a revised date at the top, and that date will be the primary signal that an update has occurred. Because the site does not collect email addresses, we cannot send you a personal notification, and we do not use pop-up banners that interrupt your reading. The policy will always be accessible from the footer of every page, so you can check it at any time. Any change that affects how your data is handled will be described in plain language, not hidden in legal jargon.

If a change is material, such as adding a new type of data collection or a new third-party service, Practice Ounce will place a notice on the homepage for a period of at least two weeks. That notice will summarize what changed and direct you to the full policy. For minor changes, such as clarifying an existing sentence or updating a contact address, no homepage notice will be shown, but the revised date on this page will still indicate that an update was made. You can review the policy before each use of the calculators if you want to stay fully informed.

The site’s privacy practices may also change because of legal requirements in the UAE or in the jurisdictions where the broker operates, and any such change will be reflected here as soon as it is known. Practice Ounce will not apply a new policy retroactively to data collected under an old policy unless the law requires it. If you disagree with a change, your remedy is to stop using the site and to clear your browser data, which removes all locally stored preferences and cookies. Continued use after the effective date means you accept the updated policy.