If you scroll down to the bottom of the webpage implementing Gauge Calculator, you can read about what data is collected. For the pre-September 2016 version of this website, this website collected:

• The count of visits to the page (lumping together all visitors).

• If you have scripting turned off, each visit will add to the count of scripting-off-visits. There one counter for the entire website that is a sum over all visitors and all pages.
• The count of each type of web browser used to visit the page. The website keeps one counter for each web browser type covering all the pages in the website.

All versions of this website collect the following data:

• If this website's server code generating the look-and-feel of a page has a serious error, it tries to log an incident report with the time, page, and type of web browser.
• If the scripting code in the page has a serious error, it tries to log an incident report with the time, page, and type of web browser.

There is no opt-out or opt-in for the data collection behavior of the Online Edition.

The Gauge Calculator 1.0 for Windows Phone has a privacy policy reachable via the information icon in the application bar. Data collection is enabled by default but can disabled (or re-enabled) at will. In other words, the policy is opt-out.

If you have not disabled data collection, version 1.0 for the Windows Phone will report:

• The count of visits to each page in the application. The counts for all users are lumped together. There is no tracking of application page (screen) visits on a user-by-user basis.
• The count of times the application was started up in inches-mode or centimeters-mode plus how often you switch between inches and centimeters. Again, these counts are kept as a total for all users and not on a user-by-user basis.
• The count of uses of the estimate-gauge, compute-gauge, compute-size, and compute-stitches tools. The counts are summed up over all users. No record is kept of what any one user does.
• The highest disk and memory usages noted by the application during one of its periodic internal checks. When this website receives performance data, it lumps it in with the data from all users. It does not track performance data on a user-by-user basis.
• The manufacturer, model, etc. of the phone used to run Gauge Calculator. This website keeps a count of the number of types of devices using Gauge Calculator. It does not track which person has what kind of phone.
• If Gauge Calculator detects that it is crashing, it tries to log an incident report with the time, crash location, and type of phone. The report does not intentionally contain information to identify you. It will contain information about what screen you were using and may contain tidbits of information about what inputs you provided to the screen, e.g. the name under which you recently saved or read gauge data.

You can opt-out of the monitoring of normal usage and continue opting-in to crash reporting -- or vice versa.

The Gauge Calculator 1.1 for Windows Phone has a privacy policy reachable via the information icon in the application bar. Data is collected only when you choose to send it. You have the chance to view the data to be sent and edit out anything you find personal before sending it.

Gauge Calculator 1.1 supports sending the following data:

• An incident report with the time, crash location, type of phone, and information about the state of the phone leading up to the crash. State leading up to the crash may contain details including how many gauges you have saved, what screens you visited recently, what buttons you clicked, what text you typed in, and how much phone resources (long term storage, working memory, CPU) Gauge Calculator is using. The report does not intentionally contain information to identify you.

  Gauge Calculator 1.1 will inform you there are incident reports to send. You can choose to send or delete them whenever you choose.

• An incident report whenever you explicitly ask for one to be created. These incident reports are like those for crashes except that they contain no crash location. You will be asked to say what misbehavior you just saw.

Note: Windows Phone has the capability of saving application data in the cloud. If you want to keep your saved gauge data or pending bug reports from being sent off your phone by this feature, you'll need to disable it using general Windows Phone functionality rather than Gauge Calculator. The Gauge Calculator application does not control backup policy. Hint: try looking under Settings then Backup on your phone.