Last Updated: November 6, 2026
Launch Hub exists to answer a question like what is 18 percent of 340 without asking you to create an account first. That simplicity shapes our privacy practices: the arithmetic runs locally in your browser, so the numbers you type into a calculator are not sent to our server as part of producing a result. This policy describes the small amount of data that a website inevitably handles when it serves pages, what we do with it, and the choices you keep.
Trademark Notice
Our tools are built from published mathematical definitions and standard unit factors, and the labels we use for them are descriptive rather than registered brand assets. We do not query trademark databases when naming a calculator or a collection. If you reuse a title or a category name commercially, checking its availability is your responsibility.
Launch Hub provides calculations for everyday use, not legal clearance of any wording on the site. No other condition is implied.
Information Collected
We collect personal information only when you choose to give it, most often by writing to us through the Contact Us form about a formula that looks wrong. Serving a page also produces routine technical records such as an IP address, a browser identifier and a requested URL; these are generated by the web server and are not the inputs you typed into a calculator. We do not ask for health, financial account or identity details.
Aggregate counts tell us which collections are opened most often, for example whether unit converters or business calculators draw more visits in a given week.
- A session cookie may hold a display preference such as a chosen unit system, so a converter does not reset on every page load.
- Page-view counts show which tool categories are useful and which pages need clearer instructions, without building a profile of an individual reader.
- Timestamped server logs are kept for a limited period to diagnose errors and to keep the library responsive during busy hours.
Data Optimization
Anonymous usage patterns help us decide where a formula needs a longer explanation. If many readers open the same converter and immediately leave, that is a signal the units or the rounding rule were unclear, and we rewrite the notes rather than tracking those readers. The improvement is to the documentation, not to a profile of a person.
No individual identifier enters this loop. Raw request logs are aggregated and then discarded on a short schedule, so a path through the site cannot be reconstructed later from what we retain. What remains is a count, not a history.
Optimisation happens on the server side for page delivery only; the calculation itself runs in your browser. our cookie practices explains the small set of storage mechanisms used to support that distinction.
Identifiers Used
We distinguish information you voluntarily submit, such as an address written to [email protected], from technical identifiers that exist simply to deliver a page or an advertisement. Voluntary messages are used only to answer the question asked. Technical identifiers are limited to what the hosting stack and any advertising partner require, and they do not reveal the numbers entered into a calculator.
Google AdSense is used on some pages to support the free library, and the identifiers it sets are limited to delivering and measuring those ads rather than capturing calculator inputs.
Data Sharing Practices
Launch Hub does not sell personal information and shares none of it with third parties except where a law requires disclosure or where a service provider must process data to keep the site running. Hosting and analytics providers operate under contract and receive only what is technically necessary.
Where a provider processes data outside your country, we rely on the standard contractual protections that apply to that transfer.
- A valid legal request is the only circumstance in which server records would be released, and we review such requests before responding.
- If ownership of the site were ever transferred, the same safeguards would continue to apply and readers would be told of the change.
- No advertising or analytics partner receives the values you type into a calculator field, because those values are never transmitted.
Security Measures
Traffic to this site is encrypted in transit, administrative access is restricted and protected by additional authentication, and software is kept updated. Because the library does not require accounts, we hold very little that could be exposed in the first place: no stored calculator inputs, no payment details and no user database.
The author checks these arrangements periodically, including which logs are retained and who can reach them. If a material incident ever occurred, we would notify affected people within the timeframe the law requires and describe what was done about it.
Your Privacy Rights
Depending on where you live you may ask to see, correct or delete personal information we hold about you, or object to optional processing; write to [email protected] and we will verify the request before acting.
- You can decline non-essential cookies through your browser or our consent control without losing access to the calculators.
- If you have corresponded with us, you can ask for a copy of that correspondence in a portable format.
- Inaccurate details in a message you voluntarily supplied can be corrected on.
Governing Law
This policy is interpreted under the law of the jurisdiction where the site operator is established, together with any data-protection rules that apply to readers in their own country. Courts of that jurisdiction handle disputes about privacy matters, and mandatory local rights are not waived by anything written here.
Waivers must be express; none are implied by simply using a calculator.
The author reviews this policy for consistency with the way the tools actually handle data. Questions can be raised through the Contact Us page, which is also the quickest way to get a plain-language answer.