Personal Information | OKUSURIBIYORI

App: OKUSURIBIYORI (the "App") / Provider: Fuji Bit Inc. ("we")
Established: October 11, 2026 / Last updated: October 12, 2026 (App version 2.0.0)

We handle information about users of the App in accordance with Japan's Act on the Protection of Personal Information and other applicable laws, as described below. This page summarizes, item by item, how personal information is handled and what information is sent from your device to outside parties, as part of our Privacy Policy.

Summary

We run no servers of our own and there is no account. Your medication logs, remaining supply, appointments, condition notes and medicine photos never reach us.
These records are stored only on your device (if OS backup is on, they may be included in your own iCloud / Google account backup).
In the free version, the ad network Pangle collects advertising identifiers, IP address, device information and similar data to deliver ads. While you are on the Pro plan, no ads are shown or requested. If the App already knows you are on Pro when it starts (as of its last successful check with the store), the ad SDK is not started at all (an ad SDK that already started while you were on the free version keeps running until the App is fully closed, e.g. removed from recent apps, or the device restarts, after purchasing Pro).
Payments for the Pro plan are handled by Apple / Google. We never receive payment information.

1. Information handled and where it is stored

Information	How it is obtained	Where it is stored / sent to us
Medicine names, how to take, times of day, memos, colors, remaining supply and low-supply threshold	Entered in "Medicines"	On the device only. Not sent to us or anyone else
Dose records (date and time taken)	Tapping "Take" / "Took it"	On the device only. Not sent
Appointments (date, time, clinic name, memo)	Entered in "Appointments"	On the device only. Not sent
Condition records (Good / Okay / Not great and a note)	Entered in "Today's condition"	On the device only. Not sent
Medicine photos (Pro)	Chosen from your photo library	Only the chosen image is resized (longest side 1024px) and saved in the App's storage. The rest of the library is not read. Not sent
Reminder times and settings	Set in "Settings"	On the device only. Reminders are local notifications; no notification server is used
Ad setting (show personalized ads or not)	Android: first-launch question / both: "Settings > Personalized ads"	On the device only. Passed to the on-device Pangle SDK as its consent setting
Advertising identifier (iOS: IDFA, only if you allow tracking / Android: advertising ID), IP address and approximate region derived from it, device information such as model, OS and language, ad interactions such as views and taps, diagnostics such as crashes and performance	Collected by the Pangle SDK built into the App (free version only)	Collected and managed by Pangle. Not stored on our servers
Purchase status (whether Pro is active)	Checked on the device with the App Store / Google Play	Only the last status is kept on the device. Payment information is handled by Apple / Google; we never receive it

We do not collect your name, address, phone number, email address, contacts, GPS location or payment information through the App. Only if you contact us do we receive your email address and the content of your inquiry.

2. Purposes of use

Recording doses; recording and showing remaining supply, appointments and condition; creating statistics and PDFs (all processed on the device)
Reminders for dose times, low supply and appointments (local notifications on the device)
Delivering and displaying ads, measuring ad performance and preventing fraud (by Pangle; personalization follows your choice)
Providing the paid plan and checking purchase status
Responding to inquiries (if you email us)

We do not use information beyond these purposes.

3. Provision to third parties / external transmission

Except as required by law, we do not provide or sell your personal information to third parties. However, to deliver ads in the free version, the following company's program (SDK) collects information directly from your device (disclosure under Article 27-12 of Japan's Telecommunications Business Act).

Recipient	Information sent	Purpose	When
Pangle (Bytedance group) End User Data Privacy Policy	Advertising identifier (IDFA only if allowed), IP address, approximate region, device information, ad views / taps, diagnostics	Ad delivery, measurement, analytics and fraud prevention. May be shared with advertising partners taking part in bidding	Free version only. Starts on iOS after you answer the tracking prompt, and on Android after you answer the first-launch question
Apple (App Store) / Google (Google Play)	Purchase / restore actions, purchase status checks	Payment for the paid plan and checking purchase status	When you open the purchase screen and when the App checks purchase status at launch

Third parties in foreign countries: Pangle, Apple and Google include companies outside Japan, and collected information may be handled outside Japan (for example, in Singapore or the United States). For each country's data protection rules and each company's safeguards, please see their privacy policies.

4. Your choices about ads and tracking

iOS: if you do not allow tracking in the prompt shown after launch, the IDFA is not sent. You can change this in Settings > Privacy & Security > Tracking.
Android: on first launch the App asks "Show personalized ads / Don't personalize", and the ad SDK does not start until you answer. You can delete or reset your advertising ID in the device's Settings > Google > Ads.
Both: turning off "Settings > Personalized ads" in the App keeps ads but stops personalization.
While you are on the Pro plan, no ads are shown or requested. If the App already knows you are on Pro when it starts (as of its last successful check with the store), the ad SDK is not started at all (an ad SDK that already started while you were on the free version keeps running until the App is fully closed, e.g. removed from recent apps, or the device restarts, after purchasing Pro).

5. Retention and deletion

Information on the device is kept until you change or delete it, or until you delete the App. Deleting the App removes it from the device.
If iCloud Backup (iOS) or backup to your Google account (Android) is on, this information may be included in your own backup (it never reaches us). The ad setting is excluded from Android backups and device transfers.
Retention and deletion of information collected by Pangle, Apple and Google follow their policies. You can ask Pangle to disclose or delete ad-related data through the contact listed in Pangle's privacy policy.
Inquiry emails are kept as long as needed to respond and then deleted.

6. Security

All communication between the App and outside services is encrypted (HTTPS). Because we do not collect your records, there is no path for them to leak from our side. Information on the device is stored in the App's OS-protected storage and cannot be read by other apps. Information received through inquiries is managed with access limited to the people who need it.

7. Requests for disclosure, correction, suspension or deletion

For personal information we hold (limited to what we receive through inquiries), you may request notification of purposes, disclosure, correction, addition or deletion, suspension of use or erasure, and suspension of provision to third parties by contacting us below. After confirming your identity, we will respond without delay in accordance with the law. We do not hold the records on your device; you can erase them in the App or by deleting the App.

8. Contact

Fuji Bit Inc.
Email: support@fujibit.com

9. Changes

We may update this page when laws change or features are added. We will announce important changes in the App or on this website.

How We Handle Personal Information