FAMILY PRIVACY · UNITED STATES
Your family’s learning records.
Who operates Numerive Math
JIANINGXU'SCOMPANY
13645 PALMETTO CIR, GERMANTOWN, MD 20874, United States
Telephone: +1 240-714-7339
Email: support@learnnumerive.com
Policy: us-family-2026-09-15-v1. Effective September 15, 2026.
What this workspace saves
Security monitoring stores counts of sign-in failures, blocked requests, application errors and operator actions for up to 30 days. These event records exclude passwords, PINs, email addresses, IP addresses and learning answers. Operator verification codes expire after 10 minutes; unlocked operator access expires after 30 minutes. Access is restricted to the verified site operator.
Parent email and a securely hashed password, sign-in sessions, parent permission records, learner nicknames and hashed PINs, saved character styles and buddy nicknames, submitted answers, requested hints, assessment results, daily visit dates, earned achievements, and a points ledger. Essential cookies and temporary security records protect sign-in and prevent abuse. Parent sign-in records include IP and browser information. We do not use advertising or analytics cookies. Do not use a child’s full name as a nickname.
How the information is used
To sign you in, provide learning feedback, save progress, and show reports to the learner’s parent. Ordinary practice checks answers with deterministic rules and uses written coaching and worked examples. Optional AI Search has a separate parent notice and authorization below; it does not receive the learner’s full answer history.
Built-in Learning Search
The built-in math solver calculates supported expressions, equations and polynomial derivatives and explains the steps. Concept mode matches your text to Numerive lessons and written examples. Neither built-in feature uses an external AI service. Photo text recognition runs in your browser using files served by this website; the photo is not uploaded. After you check and confirm the text, only that text is sent to Numerive for calculation and course matching. Recognition may misread handwriting, symbols, fractions or diagrams. Please use a cropped, printed math question and correct any recognition errors.
Numerive does not save Learning Search text, photos or calculated replies to its learning database. Signed-in learners can explicitly save a topic for future homework; only the topic and request time are retained for up to 30 days. Asking for help does not lower mastery or change unfinished homework. Unsupported or incomplete problems are identified without substituting a related example for the answer. Concept guides label lesson examples separately.
Optional AI Search: parent notice
Notice ai-search-2026-10-18-v1. AI Search is off by default for every learner. A verified parent who has completed family learning permission must separately enable it. Refusing or withdrawing does not restrict ordinary lessons, search, practice, homework or rewards.
When optional external explanations are enabled and used, submitted question text is sent to OpenAI to match concepts and explain steps. The built-in solver and browser photo recognition do not use that service. Only a broad school band, topic, difficulty and mastery summary are used for personalization; names, account identifiers, full learning history and contacts are not sent. Do not include a child's face, name, school, contact details or other personal information in a question or image.
Numerive does not save question text, photos or AI replies to its learning database, image storage or recovery packages. OpenAI requests disable response storage and require operator-verified Zero Data Retention for child-facing AI before activation; provider safety exceptions may apply. AI is used only to support learning, not advertising or model training. Read the provider's data controls and Numerive's family privacy notice for details.
Choosing ‘I need more practice’ saves only the topic and request time for up to 30 days. It may add a review question to a later homework set, without changing grades, mastery or unfinished homework. Parents can export these records or delete the learner. AI permission can be turned off here at any time and must be granted again after application recovery. AI can make mistakes; check the recognized question and mathematical steps with a parent or teacher.
How families find us
On the public family introduction (/families), free sampler (/try), and parent guide to fractions (/guides/help-child-with-fractions), approved campaign links let us count browser opens by source. Across these three pages, visits from the same source in the same browser tab on the same UTC date share one browser-open count. A random request token in that browser tab helps prevent duplicate counts; it changes by source and date, is cleared when the tab closes, and is not an account or device identifier. The server uses a hash of the token only for 24-hour request deduplication. Opening another tab or returning on another day may count again. These are browser opens, not unique people.
At parent registration, an optional “How did you hear about us?” selection may be filled from the campaign link. You can change it or choose “Prefer not to say.” We count the source only when a new parent account is created, including accounts awaiting email verification. Existing accounts are not attributed retroactively. The report contains daily aggregate source counts from the last 90 days; the source is not saved on your parent or learner profile. Expired request hashes and aggregate counts older than 90 days are removed during subsequent tracking activity or operator checks, so physical deletion can occur later when the service is inactive.
These growth counts do not collect IP addresses, referring page addresses, names, email addresses, student answers or learning activity. No advertising cookies or external analytics service are used. Only the verified site operator can view the aggregate report; test traffic is shown separately. Service sign-in and infrastructure security records have their own purposes and retention described elsewhere in this notice.
Optional paid reasoning plan
A parent may choose a one-time plan for a learner aged 13 or older when sales are open. We save the order reference, amount, status, parent age declaration, accepted terms version, activation and expiry, and refund-request status to provide the purchased plan. The age declaration is not identity verification. Existing free learning remains available. The plan reuses the family's existing learning evidence; it adds no advertising profile or external AI processing.
Zelle transfers take place in your bank's application. Numerive does not collect bank account numbers, banking passwords, verification codes or payment screenshots. Only the verified operator can record a payment or refund after checking the bank. Duplicate-transfer checks use a hash of the bank reference. Zelle and your bank process the transfer under their own terms. Zelle does not offer purchase protection; Numerive provides the refund policy stated on the plan page.
Family exports include your order and access history. Deleting the learner or family removes its linked orders; the bank retains its own transaction records. Unlinked duplicate-transfer markers are removed after 90 days from confirmation. Learning backups exclude orders and payment markers: after an incident, paid access requires reconciliation with bank records, so an old backup cannot reverse a refund. Keep your order reference when contacting support about a payment, including after account deletion. Deleting an account does not cancel a valid refund claim.
Control your records
The parent workspace provides reports, a download of family learning records, PIN changes and permanent deletion of individual learners. In account settings, withdraw permission and delete all learners while keeping your parent login, or close the entire family account. Deleted learners cannot sign in and their sessions are revoked. Whole-family deletion requires the current parent password. No child is required to provide more information than is needed for these learning activities.
Parent permission comes first
US parents and legal guardians may create a learner profile, including for a child under 13, after completing the parent permission process. Children do not create email accounts or give permission themselves. Parents verify their email, declare they are an adult parent or legal guardian in the United States, receive a direct privacy notice, approve it and confirm a separate follow-up email. The service does not request a government ID. This email process is used for the service’s limited internal use of learning records; it is not a government identity check. Refusing permission prevents activation. Parents can withdraw permission at any time.
For account or privacy questions, see family support.
Authentication and learning records are stored in this application’s database. The hosting infrastructure uses OpenAI Sites and Cloudflare. This application does not include behavioral advertising, public student profiles or voice uploads. Optional parent-reviewed messaging and signed-form uploads are described below. Resend receives parent email addresses and account links to deliver account and permission notices. Porkbun hosts the support mailbox and receives messages sent to support. These providers support the service’s operations. We do not sell children’s records or provide them to advertisers. Please do not send a child’s full name, photo or unnecessary personal information to support.
Problem reports
Report a problem saves the selected category, optional description, page path, relevant topic or question reference, interface language, submission time and any screenshot you choose to attach. Screenshots are resized and file metadata is removed; crop out visible personal information before uploading. It does not automatically attach account identity, sign-in tokens or learning answers. Do not include personal information. Authorized operators and the Codex task assisting with site maintenance review reports; other families cannot view them. Reports, screenshots and review notes are retained for up to 90 days, then removed during daily maintenance, and are excluded from family recovery packages. For earlier deletion, contact support with the report reference.
Optional friends, study groups and parent-reviewed messages
Separate notice: us-social-groups-signed-2026-10-12-v2. Learning permission alone does not enable social features. For every minor, including children under 13, the guardian must use a verified parent account, read the direct social notice, print and hand-sign a learner-specific consent form, and return its photo or scan. The operator checks the signed form; only after approval can the parent separately activate messaging. No government ID or child photo is requested.
We store the guardian name, under-13 or 13–17 age range, signed form and review record, friendship and group approvals, blocks, selected group problems, private submissions, text messages and solution steps, reports and moderation actions. Known friends connect through a separate expiring invite code, student acceptance and both parents’ approval. There is no public directory. Nicknames, selected avatars and approved messages are shared with approved friends and their parents; grades and privately submitted answers are not automatically shared.
Study groups have a fixed roster of 2–4 mutually approved friends. Parents must separately opt in before invitations can disclose roster nicknames to the proposed students and their parents. Every student accepts and every parent approves that full roster before selected problems or discussions become visible. Members cannot be added later; create a new group for a different roster. Each text contribution waits for its author’s parent to review it before other members and their parents can read it. Answers voluntarily included in approved discussion are visible to the group. Private answers and feedback remain visible only to the learner and their own parent. Earlier social consent versions do not authorize this expanded use; the updated signed form must be verified first.
Every outgoing text message waits for its sender’s parent to approve or reject it. Both parents can read the approved conversation; the site operator reads reported messages and their reasons. Do not include contact details, outside links, photos or files. Basic automated restrictions supplement parent review and do not guarantee that harmful content will be detected. Report concerns and block contact from the conversation. The operator can remove reported messages or pause all messaging.
Unsigned drafts expire after 7 days. Signed images, messages, reports and moderation logs expire within 30 days. Groups, selected tasks, submissions and discussions also expire within 30 days; expired records are inaccessible and removed by successful maintenance. Permission and block status remain as needed to enforce parent choices. Withdrawal, leaving or blocking immediately stops access to affected groups; discussions and invitations are removed. Report copies and review logs may remain until their 30-day expiry. Independent learning, homework and parent reports remain available. Deleting a learner removes their social records; another family's report may remain until expiry. Orphaned signed images immediately become inaccessible and are removed during maintenance.
Parents can review permissions and conversations, download their learner’s own messages in the family export, and withdraw social permission in the family workspace. Signed evidence is available privately until expiry. These short-lived social records are excluded from the application’s long-term learning recovery packages; after recovery, separate authorization and friendships must be established again. Hosting-provider backups have their own policies. Social use is optional and has no effect on learning rewards.
Retention and recovery
Active records support ongoing practice and parent reports. After 365 days without family activity, a retention check sends a notice and gives the parent 30 days to sign in or export records before account deletion. Signing in cancels the notice. Unverified accounts become eligible for deletion after 30 days; incomplete permission requests expire after 7 days. Expired sign-in and recovery records are cleared after one day.
Encrypted recovery copies are usable for 28 days. Older copies are refused by the recovery process and removed during the next retention check. Hashed deletion receipts are kept for 35 days so restoring an older copy cannot reactivate deleted records. Recovery excludes sign-in sessions and password-reset tokens. Recovery keys are held separately from the database.
Retention and backup checks are designed to run daily. The operator monitors successful completion and retries missed or failed runs. Account and learner deletion requests take effect immediately in the live application; routine expiry cleanup runs during successful maintenance checks. Provider-managed security logs and infrastructure recovery copies are governed by the relevant provider’s terms; their separate deletion schedules have not yet been independently verified.