Mochiten Privacy Policy

Mochiten Family Calendar (the “App”) / Effective: November 9, 2026

Toshimitsu Kugimoto (the “Operator”) handles the personal information processed by the App as described below. The App lets families share events, shopping lists, and anniversaries, and suggests what to wear and bring based on the weather.

1. Information we collect

(1) Information you enter (your family’s data)

Family name; for each adult and child: nickname/display name, color, emoji, cold-sensitivity, birthday (optional for adults; for children, the birth month is required and the day is optional), and the child’s facility type (nursery, kindergarten, school, etc.).
Events (title, date/time, place, notes, recurrence, participants), shopping items (name, quantity, category, due date, notes, purchased status), anniversaries, and places used for the weather (name and latitude/longitude).

When you sign in and share with your family, this data is stored on the Operator’s servers. If you use the App without signing in, it stays on your iPhone and is not sent to the server. Please avoid entering unnecessary personal information (such as real names or addresses).

(2) Account information

With “Sign in with Apple”, we receive an Apple-issued user identifier and an email address (or Apple’s private relay address if you choose “Hide My Email”). We store them to manage your login.

(3) Notification information

Your device’s push token (issued by the Apple Push Notification service, APNs), an identifier for each app installation, your language, and your notification settings.

(4) Purchase information

When you buy the Family Plan (a subscription), we store the Apple-issued transaction identifier, product, expiry date, environment (production or sandbox), and the login of the purchaser. Payment details are handled by Apple; the Operator does not receive them.

(5) Advertising information

When you use the App for free, the ad SDK (Google AdMob) may collect device information such as an advertising identifier (IDFA, only if you allow tracking), IP address, device/OS type, ad impressions and interactions, and crash and performance information.

(6) Logs

To investigate problems and prevent abuse, the server records request IDs, user/family IDs, the type of operation, and error reasons. It does not record what you enter (event titles, names, notes), invite codes, or notification text. IP addresses are recorded only when needed to investigate abuse, such as when a rate limit is hit.

The App does not collect your location (GPS). The weather uses the places (latitude/longitude) you search for and choose by name; the text you search is sent to Apple’s place-search service. Events from the iPhone Calendar are read and shown on your device only if you allow it; they are never sent to our server or to third parties.

2. How we use information

To share and sync events, shopping lists, etc. with your family; to manage logins and invitations
To suggest clothing and items based on the weather and to show the morning notification (created on your device)
To send notifications when family members add events or shopping items
To verify purchases and manage the plan
To show ads (when using the App for free)
To investigate problems, keep the service safe, prevent abuse, and improve the service
To respond to inquiries and comply with laws

3. Notification content and Apple services

Notifications to your family include the name of the person who added the item, and the event title or shopping item name. They are delivered through the Apple Push Notification service (APNs). The Operator does not keep notification text in its logs. You can turn each kind off in Settings → Family Notifications.

The weather comes from Apple’s WeatherKit, so the latitude and longitude of the places you register are sent to Apple.

4. Advertising and tracking

When you use the App for free, it shows banner ads and, when you choose to watch one, rewarded ads through Google AdMob. With the Family Plan, ads are not shown.
To show ads, Google handles information collected from apps that use its ad SDK (advertising identifier, IP address, device information, ad interactions, etc.).
Even if you choose “Ask App Not to Track”, you can use every feature of the App, and the advertising identifier is not used. You can change this anytime in iPhone Settings.
We do not provide your family’s data (names, events, shopping, children’s information, etc.) to advertisers or use it to target ads. Ad content is restricted to all audiences.

5. Children’s information

The App is not directed to children. Children’s nicknames, birth month, and facility type are entered optionally by the parent or guardian who uses the App, to suggest clothing and items. Children are not expected to use the App themselves. Users under 13 should use it with a parent’s consent and supervision. The Operator does not use this information for any purpose other than the suggestions (including advertising).

The Operator does not provide personal data to third parties without consent, except as required by law. To provide the App, we use the services below and let them handle information as needed.

Provider	Purpose	Main information
Supabase, Inc. (AWS Tokyo region)	Login, database, realtime sync	Account, family data, device notification info
Google LLC (Google Cloud, Tokyo region)	Running the server, scheduled jobs, logs, secret storage	Request logs; processing of the above data
Apple Inc.	Sign in with Apple, push notifications (APNs), in-app purchases, WeatherKit	User identifier, notification text, purchase transactions, place coordinates
Google LLC (AdMob)	Ad delivery (when using the App for free)	Advertising identifier, IP address, device information

Transfers abroad: Apple and Google may process information in other countries, including the United States, under their own privacy policies.

7. Retention and deletion

We keep your family data and account information while you keep using the App.
You can delete your account anytime in the App: Settings → Delete Account. If you are the only signed-in person in your family, all of your family’s data (events, shopping, anniversaries, members, etc.) is deleted. If other people are signed in, you leave the family and the family’s data remains. We also revoke the link with Sign in with Apple.
Device notification information is deleted when you sign out or delete your account. Records of sent notifications are deleted after about 7 days.
Purchase records are deleted with the family’s data. If the purchaser deletes their account, the purchase record remains until the paid period your family is using ends (the link to the purchaser is removed). Deleting your account does not cancel your subscription. Please cancel it first in iOS Settings → Apple ID → Subscriptions.
Server logs are deleted after about 30 days. Deleted data may remain in backups for a limited time.

8. Security

Communication is encrypted (HTTPS). The database enforces per-family access control so that you can read and write only your own family’s data. Secret keys are kept in a secure vault, not in the source code. No system is perfectly secure, however.

9. Your requests

You may request disclosure, correction, addition, deletion, or suspension of use of your personal data. After verifying your identity, we will respond promptly in accordance with applicable law. Many items can be corrected or deleted by yourself in the App. Please send requests by email to the contact below.

10. Availability

The App is not distributed in Europe (the EU, EEA, UK, and Switzerland).

11. Changes

We may revise this policy as needed. We will announce important changes in the App or on this page. If you keep using the App after a revision, you are considered to have agreed to the revised policy.

12. Operator and contact

Operator: Toshimitsu Kugimoto (individual)
Email: tokimochi.dev@gmail.com
Contact form: /en/contact/?app=mochiten