Privacy Policy
Effective October 7, 2026.
Numeria collects only what a teacher needs to run math games with a class: the teacher's Google sign-in, and each student's first name or nickname and game progress. We never sell data, show ads, or ask students for email addresses, passwords or last names.
Who we are
Numeria is a set of classroom math games run by Justin Owens, a North Carolina middle school math teacher, at data.justinowensauthor.com. In this policy, “we” means Justin Owens. “Teacher” means an approved teacher account. “Student” means a student who plays with a login card a teacher printed.
What we collect
| Who | What we store | Why |
|---|---|---|
| Teachers | Google account email and display name, the name and school you enter when you request access, account status and trial dates | To approve you, sign you in, and run your trial or membership |
| Teachers | Classes, game settings, renamed titles, question banks, quarter dates, saved Hall of Fame lists, and resource links you add | To run the games the way you set them up |
| Teachers | Help & Feedback posts, replies, new game ideas and votes, shown with your name | To answer questions, fix problems and decide what to build next |
| Students | First name or nickname the teacher types, class name, avatar name, character class and guild | To show the student in class and on the leaderboard |
| Students | XP, Gold, items, crafting materials, game progress, answers in lab activities and reward history | To save progress, run the shop, and show the teacher how the class is doing |
| Students | Login card code and a random anonymous ID created when a game opens | To sign the student in without an email or password |
| Any device | Game saves and settings in the browser's local storage | So a game remembers where the student left off |
We do not collect student email addresses, last names, birthdays, photos, phone numbers or location. Students do not create accounts. Please don't type a student's full name on a card; a first name or nickname is enough.
How we use it
We use this information only to run Numeria for your classes: signing in, saving progress, showing leaderboards, paying in-game rewards, and showing results to the teacher. We read Help & Feedback posts to fix problems and plan new games. We do not use student information for advertising, profiling, or anything outside the classroom.
Where it is stored
Data is stored in Google Firebase (Realtime Database and Authentication), run by Google LLC in the United States. Google acts as our service provider and processes the data on our behalf. Teacher sign-in uses Google accounts. Our pages also load fonts from Google Fonts and a few code libraries from cdnjs (Cloudflare). Those services see a visitor's IP address when a page loads, as with any website, but they receive no student information.
Who can see it
- The teacher sees their own classes and students. One teacher cannot see another teacher's students.
- The class leaderboard is public to anyone with its link. It shows avatar names (or “Cadet” and a short code), character class, guild, XP, Gold and the saved Hall of Fame. It never shows first names, login codes or anything a teacher typed about a student.
- Other approved teachers can see your Help & Feedback posts and game ideas with your name, and any question bank you choose to share to the shared library.
- Students see their own account, their class leaderboard, and links their teacher chose to share with them.
- The site owner (Justin Owens) can see account requests and can access the database to fix problems.
- Nobody else. We do not sell, rent or trade information. We share it only if the law requires it.
Schools, COPPA and FERPA
Many students who use Numeria are under 13. Numeria is offered to schools and teachers for classroom use only. When a teacher uses Numeria with students, the teacher and school confirm that they have the school's authorization to do so and are providing consent on parents' behalf for this educational use, as COPPA allows. For FERPA, the school stays in control of student records; we act as a “school official” with a legitimate educational interest and use student data only for the school's purposes. Parents can ask their child's teacher, or us, to see or delete their child's information.
How long we keep it and how to delete it
We keep a class's data while the teacher's account is active. A teacher can delete students and classes in the Teacher Portal at any time. To delete a whole account, email us and we will delete it within 30 days. If a trial ends and the teacher doesn't continue, we delete that account's data 90 days after the trial ends. Browser local storage stays on the device until it is cleared.
Security
The database is protected by access rules: teachers must sign in with Google and be approved, student cards only reach their own class, and only the players in a game can change it. Data travels over encrypted HTTPS. No system is perfectly secure; if we learn of a breach that affects your data, we will tell affected teachers promptly.
Changes to this policy
If we change this policy in a way that matters, we will post the new version here and tell teachers in the Teacher Portal before it takes effect.
Contact
Questions or requests: Justin Owens, justinowens@justinowensauthor.com.