Privacy Policy

Last updated: October 13, 2026

"AiDEPT for Abacus" (the "App") is an educational app provided by AiGENT & Co. ("we", "us", or "our") where children build numbers by moving beads on a 100-bead soroban (abacus). Using the App requires signing in with a Google or Apple (Sign in with Apple) account. This Privacy Policy describes how we handle information we collect through your use of the App.

1. Operator Information

Operated by	AiGENT & Co.
Contact	support@aigent-co.com

As the operator is a sole proprietorship, the proprietor's legal name and address will be disclosed promptly upon request via the contact address above.

2. Information We Collect

Using the App requires signing in. To sign in, we collect the following information.

Google or Apple (Sign in with Apple) account sign-in information (email address [or Apple's private relay address, if you use Hide My Email], display name)
An identifier used to identify your account (user ID)
Your child's age mode ("Count one by one" or "Count by place value"), stored with your account
"Stamp book" records (the days a stamp was earned and the total and monthly counts, the number of problems solved that day, points collected, the sticker series unlocked, the sticker chosen for each day, the date and time the subscription bonus points were granted, and the number of stamps earned since subscribing), stored with your account
"History" records (for each practice set: the problems, including whether each is a carrying/borrowing "challenge" problem, the counting mode, whether the set was completed, and for each problem whether it was answered correctly on the first try, the number of wrong attempts, the number of times a condition was not met, the time taken, an overall result for the set, and the start and end times), stored with your account
Subscription status (whether you have an active subscription and its term). Payments are processed by Apple, and we use RevenueCat to verify your purchase status. We do not collect your payment details (e.g., credit card information)

In addition, to manage the daily free-use limit, we store the following on our servers (database):

A device identifier and that day's usage count. This is never linked to information that could personally identify you, such as your name or email address

The Stamp book and History records do not contain information that could identify your child personally, such as a name (the App does not ask for your child's name). They are, however, stored linked to the account you sign in with.

3. Purposes of Use

To manage your sign-in state and carry over your subscription status after restoring a purchase or switching devices
To set and display your child's age mode (stored with your account)
To show the Stamp book and History in the App and carry them over when you switch devices (stored with your account)
To manage the daily free-usage limit and to provide features to paid (subscription) plan users
To respond to inquiries

4. About In-App Usage Logging

The App has an internal mechanism for logging anonymous usage events (such as screen navigation and operation errors), but as of September 2026 this logging is not transmitted off the device to us or any third party. If we connect this to an analytics backend in the future, we will update this policy to describe exactly what is sent.

5. Disclosure to Third Parties

We do not disclose the information we collect to third parties except in the following cases.

Google Cloud Platform (Firebase): In addition to the sign-in feature, information is sent to our service provider to store the Stamp book and History and to record the daily free-use limit (see "2. Information We Collect" above).
Apple Inc. (App Store) / RevenueCat: Purchase information is processed via Apple and RevenueCat to handle payment for paid plans. We share the identifier (user ID) used to identify your account with RevenueCat to verify your purchase status and to analyze usage. We do not directly hold or obtain payment information such as credit card details.
Where disclosure is required by law

The App does not use any third-party advertising.

6. Children's Privacy

The App is designed to be used by a child together with a parent who has reviewed and agreed to this policy. Before use, a parent confirmation screen is shown, and the child can only proceed once the parent has checked the consent box. Signing in uses the parent's own Google or Apple account. Information relating to a child is always handled under the parent's management and consent.

7. Data Retention Period

Your child's age mode, Stamp book records, and History records (all stored with your account) are retained for as long as the account exists. The History screen limits how many records it shows (the latest 10 for free use, the latest 30 on a paid plan), but this does not change how long records are stored. For how to delete your account, see the Account Deletion page. When you delete your account, the information stored with your account is deleted.

When you delete your account, we request deletion of your account ID (user ID) and purchase history held by RevenueCat as part of the account-deletion operation; you do not need to contact us separately.

The daily free-use record (device identifier and that day's usage count) is also stored on our servers, so it is not removed by uninstalling the App or deleting your account alone. See "What remains after deletion" on the Account Deletion page for how long it is retained.

8. Contact Us

For questions about this Policy, or to request disclosure, correction, or deletion of personal information we hold, please contact us at the address below.

support@aigent-co.com

9. Changes to This Policy

This Policy may be revised without notice due to changes in applicable law or the App's services. The revised Policy takes effect once posted on this page.