Algebro

Privacy Policy

How we handle your data on Algebro.

Last updated: March 2026

Overview

Algebro is an educational platform designed to help middle school students learn math. We take privacy seriously and are committed to protecting student data.

This Privacy Policy explains what data we collect, how we use it, how it is protected, and what rights students, parents, and schools have.

The short version:

  • We only collect data needed to operate the platform.
  • We do not sell data. Ever.
  • We do not use data for advertising or marketing.
  • We do not serve ads.
  • Student data is used only for educational purposes.
  • Student email addresses are not collected.

Information We Collect

Student Accounts

Student accounts are created and managed through schools. We collect:

  • First name and last name
  • Username
  • Password (securely managed and never stored in plain text)

Student email addresses are not collected or permitted.

Students log in using a username and password provided or managed by their school.

Teacher Accounts

Teacher accounts may optionally include an email address. We collect:

  • First name and last name
  • Username
  • Password
  • Optional email address (used for login and account recovery if provided)

Providing an email address is optional for teachers.

Parent Accounts

Parents and guardians can create an account by signing up with an email address or Google account. Parents can create student profiles for their children to access the platform. By creating a student profile, the parent provides direct verifiable parental consent (COPPA) for their child's data to be collected as described in this policy. We collect:

  • Parent email address (used for login and account management)
  • Parent name (first and last)
  • Student profile first names (chosen by the parent)
  • Payment-related metadata (Stripe customer ID, subscription status)

Credit card numbers and payment method details are handled entirely by Stripe and never touch Algebro's servers.

Learning & Progress Data

As students use Algebro, we collect educational data, including:

  • Lesson progress and completion
  • Quiz scores and attempts
  • Practice attempts and results
  • Student answers to questions
  • Timestamps related to activity completion

This data is used to show students their learning progress, provide teachers insight into class performance, and support instructional feedback.

Virtual Currency (BroCoins)

Students may earn BroCoins by completing lessons, quizzes, and practice sessions. We track BroCoin balances, earning events, and spending on virtual items (themes and cosmetic features).

BroCoins:

  • Have no real-world monetary value
  • Cannot be purchased or exchanged for money
  • Do not affect academic grades or evaluations

Automatically Collected Data

We use Vercel Analytics and Vercel Speed Insights to monitor platform performance. This may include page views, load times, error rates, and IP addresses.

This data is used solely for reliability and performance monitoring and does not involve student tracking, profiling, or advertising. IP addresses are not stored beyond what is necessary for analytics processing.

Cookies

Algebro uses a small number of cookies that are strictly necessary for the platform to function. We do not use advertising cookies, tracking cookies, or third-party marketing cookies.

  • Authentication cookies (set by Clerk): used to keep you signed in and maintain your session. These are essential for the platform to work.
  • Active profile cookie (algebro-active-profile): used for parent accounts only. When a parent selects a student profile, this cookie stores the selected profile ID so the platform knows which child's data to display. It contains only an internal profile identifier—no names, emails, or other personal information. This cookie is HTTP-only, secure in production, and persists for up to 1 year.

By using Algebro, you consent to the use of these strictly necessary cookies. Because these cookies are required for the platform to operate, they cannot be disabled.

How We Use Data

We use collected data to:

  • Operate and maintain the Algebro platform
  • Provide educational functionality
  • Track and display student progress
  • Give teachers insight into student learning
  • Power AI-assisted instructional feedback
  • Maintain platform security

We do not use student data for advertising, marketing, profiling, or non-educational purposes.

AI Features

Algebro uses AI (powered by OpenAI) to assist students through the Bro learning guide and to generate feedback on quiz answers.

What is sent to AI services:

  • Math problems
  • Student answers
  • Lesson context
  • Prior messages from the current tutoring session

What is NOT sent:

  • Student names
  • Usernames
  • Email addresses
  • Any personally identifiable information

Bro Chat interactions (conversational tutoring) are stored temporarily in the user's browser session and are not saved to Algebro's database.

Quiz feedback generated by AI (mistake diagnoses) is stored in Algebro's database alongside quiz results so that students and teachers can review feedback after the quiz is completed. This data does not contain personally identifiable information—only the AI-generated analysis of the student's math answers.

Third-Party Services

We use the following service providers to operate Algebro:

Clerk

Authentication and account management. Receives: student names, usernames, and passwords.

Supabase

Database hosting. Receives: all educational records (progress, scores, answers).

Vercel

Website hosting and performance monitoring (Analytics & Speed Insights). Receives: page views, performance metrics, IP addresses.

OpenAI

AI-powered learning assistance. Receives: math problems, student answers, and lesson context. Does not receive names, usernames, or other PII. Data sent via API is not used to train OpenAI models.

Stripe

Payment processing for parent subscriptions. Receives: email address, payment method details, billing address. Stripe handles all payment data directly. Algebro does not store credit card numbers.

Google

Optional sign-in provider. If you choose to sign in with Google, we receive your name, email address, and profile picture from your Google account. We do not access any other Google account data.

These providers receive only the data necessary to perform their services. We maintain Data Processing Agreements (DPAs) with our service providers. We do not share student data with any other third parties except as required by law.

Google API Services Disclosure

Algebro's use and transfer of information received from Google APIs to any other app will adhere to the Google API Services User Data Policy, including the Limited Use requirements.

Data Shared with Teachers

Teachers can access data only for students in their own classes, including:

  • Student names and usernames
  • Lesson progress
  • Quiz and practice results

Teachers cannot access data from other classes or schools.

Data Security

We use reasonable technical and organizational measures to protect data, including:

  • Encrypted data transmission (HTTPS)
  • Secure password handling via our authentication provider
  • Server-side authentication and authorization checks
  • Input validation on user-submitted data
  • Role-based access controls for students, teachers, and administrators

Children's Privacy (COPPA Compliance)

Algebro is designed for middle school students, including children under 13. We comply with the Children's Online Privacy Protection Act (COPPA).

School Consent Model

Student accounts are created through schools using class access codes provided by teachers. Under COPPA's school consent exception (16 CFR 312.5(c)(4)), schools may consent to the collection of student information on behalf of parents for educational purposes only. Schools are responsible for providing parents with notice of Algebro's data practices and obtaining any required parental consent before distributing class access codes to students.

Parent Direct Consent Model

For student profiles created by parents through their parent account, the parent provides direct verifiable parental consent by creating the account and student profile. This is not the school consent exception—parents are directly consenting to the collection of their child's educational data. Parents can review, delete, or manage their child's data at any time directly from their parent dashboard.

Parental Rights

Parents and guardians have the right to:

  • Review the personal information collected from their child
  • Request deletion of their child's personal information
  • Refuse further collection or use of their child's information
  • Agree to the collection and use of their child's information without consenting to its disclosure to third parties (except as required for the educational service)

To exercise these rights, contact us at jkorwin@algebro.ai or contact your child's school directly.

Data Minimization

We collect only the minimum data required for educational use. We do not collect student email addresses, phone numbers, physical addresses, or other contact information. We do not condition a student's participation on disclosing more personal information than is reasonably necessary.

Data Retention & Deletion

We retain data for the following periods:

  • Account information (name, username): retained while the account is active
  • Learning progress and quiz results: retained while the account is active
  • AI-generated quiz feedback: retained while the account is active
  • Bro Chat conversations: stored only in the browser session; not retained by Algebro after the session ends
  • Virtual currency and inventory: retained while the account is active

Schools or parents may request deletion of student data at any time. Upon request, data will be deleted within 30 days. To request deletion, contact us at jkorwin@algebro.ai.

Your Rights

Parents and guardians have the right to:

  • Request access to their child's data
  • Request correction of inaccurate data
  • Request deletion of data
  • Withdraw consent for platform use

Requests may be submitted through the school or by contacting us directly.

Changes to This Policy

We may update this Privacy Policy periodically. If material changes are made, we will notify users through the platform. The "Last Updated" date reflects the most recent revision.

Contact Us

For questions, concerns, or data requests:

Algebro LLC

See also our Terms of Service.