Mathdyne — adaptive printable math worksheets
Effective Date: September 6, 2026
Last Updated: September 6, 2026
This Privacy Policy describes the data practices of Mathdyne (the “App”), an iOS and iPadOS application that generates printable math worksheets for a student and lets a parent or teacher grade them.
The short version: the App collects nothing, transmits nothing, and makes no network connections. It does store your student's progress, but only on your own device, where it stays.
This policy applies to the App when installed on an Apple iOS or iPadOS device. It covers use by students and by the parents, guardians or teachers who set the App up and supervise it.
We collect nothing. The App has no network capability and no technical means to send information anywhere. Specifically, the App does not collect, receive, transmit or have access to:
So that a student's work carries on from one worksheet to the next, the App saves the following in its own private storage area on your device. None of it is transmitted, and none of it is visible to us or to anyone else:
This information is written to the App's private container on the device. Removing the App deletes all of it permanently. You can also erase it from inside the App at any time using Settings → Reset all progress.
If you back up your device to iCloud or to a computer, that backup includes the App's stored data, in the same way it includes data from every other app you use. Those backups are handled by Apple and by you under your own device settings. We have no access to them and receive nothing from them.
Worksheets are rendered into a PDF on the device. When you choose to print or share one, the App hands that PDF to the standard iOS print or share sheet, and it goes wherever you send it — your printer, your files, an email, a message. That happens only when you ask for it, the destination is entirely your choice, and the App plays no part beyond handing the file over. A temporary copy of the PDF may be written to the App's temporary folder to make sharing possible; the system clears that folder, and deleting the App removes it.
Because nothing is collected or received, there is no use of information by us. Everything stored on the device is used solely to decide which problems to put on the next worksheet and to show progress to the parent.
We share nothing, because we hold nothing. No information is disclosed to any third party under any circumstances. There is no sharing with analytics providers, advertising networks, cloud services, educational partners or researchers, and no sale, rental or licensing of data. The App makes no network connections for any purpose.
The App contains no third-party analytics, no advertising frameworks, no social-media components, no in-app purchases and no external links to services that would track you. It depends only on Apple's own operating-system frameworks, which do not report anything to us.
The App is intended to be set up and supervised by a parent, guardian or teacher, and is used by children under that supervision. It is designed so that no information about a child can leave the device: nothing is collected, and nothing is transmitted. Because no personal information is ever collected or shared, the notice, verifiable parental consent and data-access obligations that the Children's Online Privacy Protection Act (COPPA) and similar laws place on operators are not triggered. A parent who wishes to remove everything a child has done can do so at any time by resetting progress in Settings or by deleting the App.
Data stays on your device until you remove it. We retain nothing, because nothing reaches us. There is no server, no database, no cloud storage and no user account anywhere.
Stored data is held in the App's private container, protected by the device's own sandboxing and, where you have a passcode set, by the device's file encryption. The parent PIN is stored as a one-way hash rather than as the PIN itself. Because nothing is transmitted, there is no data in transit to intercept.
Rights to access, correct, export or delete personal information generally apply to data held by an operator. We hold none. Everything the App stores is already in your hands: you can read it in the App, change it in the App, and delete it in the App or by removing the App.
If this policy changes, the updated version will be posted at this address with a new “Last Updated” date. Material changes will be described plainly rather than buried.
Questions about this policy, or about privacy in the App, can be sent to boopsoftware@gmail.com, and will be answered by a person.