Privacy Policy
Hachiware, LLC. (“we” or “us”) sets out below how we handle user information in “PicoCraft” (the “App”), a game for iPhone and iPad and Android.
1. Information We Do Not Collect
The App does not collect information that directly identifies users, such as names, email addresses, phone numbers, location, device names, or advertising identifiers (IDFA / Android Advertising ID). The App does not show ads.
Your game progress (save data) is stored on your device. In the iPhone and iPad version, when you save from Settings → “iCloud backup,” a copy is stored in your own iCloud (Apple). This backup is not sent to our servers, and we cannot see it.
2. Usage Analytics and Crash Reporting (Firebase)
In the iPhone and iPad version, we use the following Firebase services provided by Google LLC to improve the App and investigate problems. The Android version does not include these services and does not automatically send usage or crash information.
- Google Analytics for Firebase: to aggregate how the App is used
- Firebase Crashlytics: to record when the App closes unexpectedly or an error occurs
Through these services, the following information is sent to Google’s servers:
- An identifier assigned to each app installation (app instance ID; it does not identify your device or you)
- Device model, OS version, app version, and language and region settings
- Approximate country or region (estimated from your IP address)
- In-game actions and progress: screens shown, the start and end of digs (depth reached, time, number of blocks dug, etc.), the number of abilities learned (level and job in earlier versions), number of cycles, reaching a new layer, and destroying cores
- The situation when the App closes unexpectedly or an error occurs (the error, the screens and actions just before it, and progress such as the abilities set and number of cycles; level and job in earlier versions)
This information is sent only if you choose “Send” in “Share usage data,” which is shown when you first start the App, among other times. It is not sent if you choose “Don’t send” or while you have not chosen yet. You can change your choice at any time in the App’s Settings → “Share usage data.” Turning it OFF stops further sending and deletes the unsent records and analytics data remaining on your device (including the app instance ID).
To deliver game tuning values, the App also receives settings from Firebase Remote Config at startup. At that time, an identifier assigned to each app installation and the app version, language, and similar information are sent to Google’s servers, but no in-game actions or progress are included. This happens regardless of the “Share usage data” setting.
The App does not collect the advertising identifier (IDFA) and does not track you across other companies’ apps or websites. For how Google handles information, see Google’s Privacy Policy and Firebase Privacy and Security.
3. Checking for Game Updates
To deliver bug fixes and game adjustments, the App checks our server for new update data when it starts and when it returns to the foreground (at most once an hour). If there is any, it downloads it and uses it from the next launch.
Only a value identifying the App’s build and information commonly included in network communication, such as your IP address and OS type, are sent. No in-game actions or progress, and no identifiers for you or your device, are included. This happens regardless of the “Share usage data” setting. You can keep playing when you are offline.
4. Inquiries from the App
Messages sent from the App’s Settings → “Contact” are sent to our server together with the following information:
- The type of inquiry (Bug or Feedback) and the message
- App version; device type, model, OS and its version; language and region settings; screen size
- Progress (number of cycles, number of digs, deepest depth reached, play time; also level in earlier versions)
- For bug reports, the state of the game when the send screen was opened (the screen shown, the abilities set, the depth being dug, the record of the latest dig, etc.; job in earlier versions)
Device names, device identifiers, and email addresses are not sent. For this reason, we cannot reply individually to inquiries sent from the App.
If you would like a reply, you can contact us with your email app from “Want a reply? Tap here” under “Feedback.” In that case, in addition to what you entered, the app version and the device and progress information above are included in the body of the email (you can check and delete them before sending). Such emails are handled as described in “Inquiries by Email” below.
The sender’s IP address is used only temporarily to prevent a large number of messages from being sent in a short time, and is not stored.
The content of inquiries is stored for 180 days after receipt and then deleted. If you tell us the ticket number shown after sending, we can also delete it earlier.
5. Inquiries by Email
If you contact us by email, we use your email address and the content of your inquiry (including the device and progress information in the body) only to respond and to investigate problems.
6. Purposes of Use
We use the information we obtain only for the following purposes:
- Providing the App, and investigating and fixing problems
- Improving game balance and features by analyzing usage
- Responding to inquiries
7. Outsourcing to Service Providers
For the above purposes, we entrust the storage and processing of information to the following service providers. Their servers may be located outside Japan, such as in the United States.
| Service provider | What we entrust |
|---|---|
| Google LLC (United States) | Usage analytics and crash reporting by Firebase in the iPhone and iPad version, and delivery of game tuning values |
| Cloudflare, Inc. (United States) | Receiving and storing inquiries from the App, and delivering game update data |
| Slack Technologies, LLC (United States) | Notifying our staff of inquiries from the App |
| Anthropic PBC (United States) | Assisting in drafting replies to inquiries (from the App and by email) and investigating problems (AI services) |
| OpenAI OpCo, LLC (United States) | Assisting in drafting replies to inquiries (from the App and by email) and investigating problems (AI services) |
We use these AI services with settings under which the content we enter is not used to train AI models.
Except as required by law, we do not provide the information we obtain to third parties without your consent.
8. Changes to This Policy
We may change this Policy as necessary. The changed Policy takes effect when it is posted on this page.
9. Contact and Data Deletion Requests
For questions about this Policy or requests to delete the content of your inquiries, please contact us at support@hachiware.co.jp.
To delete an inquiry sent from the App, email support@hachiware.co.jp with the ticket number shown after sending and a request to delete your PicoCraft inquiry data. We will delete the message, the device and progress information, and the game state from bug reports that we store. Even without a request, we delete it 180 days after receipt.
To delete an inquiry sent by email, send a deletion request to the same address from the email address you used. We will delete that email address, the message, and any attached diagnostic information.
Neither the save data on your device nor its iCloud backup is sent to our servers. To delete your save data, clear the App’s storage in Android Settings or uninstall the App. The iCloud backup remains after you uninstall the App; to delete it, delete the App’s data from iCloud storage management in the iPhone or iPad Settings. Deleted data cannot be restored.