Plain English privacy notice
Your play stays yours.
Koishi Fall has no account, advertising, analytics or tracking. The app does not send gameplay or personal data to SideDoor Ltd.
Effective 16 August 2026
The short version
- The app collects no personal data and makes no network requests.
- It asks for no sensitive device access and displays no permission prompts.
- Your settings, records and open run are stored locally on your device.
- There are no accounts, ads, analytics SDKs, tracking SDKs or cloud saves.
- If you email support, we use the information in your message only to answer and manage that request.
1. Who is responsible
Koishi Fall is provided by SideDoor Ltd. SideDoor Ltd is the data controller for personal information you choose to send to support.
SideDoor Ltd is registered in England and Wales under company number 17115108. Our registered office is 66 Paul Street, London, England, EC2A 4NA. For privacy questions or rights requests, email hello@sidedoor.ltd.
2. Data used by the app
Koishi Fall stores these items locally so the game works between sessions:
- accessibility and control settings;
- best score, longest chain and number of completed runs;
- the current run, so you can continue after closing the app.
This information stays inside the app's storage area. Koishi Fall does not transmit it to SideDoor Ltd or any third party. We cannot view, recover or remotely delete it because we never receive it.
3. Device backups and deletion
Your operating system or a backup service you have enabled may include local app data in a device backup. Apple or Google controls that backup under your account settings and its own privacy terms.
Deleting the app, or clearing its storage on Android, removes its local data from the device. A platform backup may restore that data if you later reinstall. Manage or remove backups through your Apple or Google account settings.
4. Apple and Google services
Apple and Google may process information when you download, buy, update or report a problem with an app. They may also make store sales reports and privacy-protected diagnostics available to developers through their consoles. This processing is provided by the store or operating system, not by Koishi Fall, and is governed by your platform settings and the relevant Apple or Google privacy notice.
5. When you contact support
If you email us, we receive your email address and anything you include in the message, such as a device model, operating-system version or screenshot. We use it to answer, investigate faults, protect the service and keep a record of the resolution.
Our lawful basis is legitimate interests in supporting and improving Koishi Fall, or taking steps at your request connected with your purchase. Support messages are normally kept while the issue is open and for up to 12 months after it closes. We may keep a message longer where reasonably needed for a legal claim, fraud prevention or another legal obligation.
Our email provider processes support messages for us. We may also disclose a message to professional advisers or a platform provider when necessary to resolve the issue or comply with law. We do not sell support information or use it for advertising.
6. This website
These privacy and support pages use no cookies, advertising or analytics. The hosting provider may process basic request logs, such as IP address, date, browser type and requested page, to deliver and secure the site. We do not use those logs to build profiles or track people across websites.
7. Your rights
Depending on where you live, you may have rights to access, correct, erase, restrict or object to our use of personal information, and to complain to a regulator. These rights are most likely to apply to a support message because the app itself sends us nothing.
Email hello@sidedoor.ltd to make a request. In the UK, you can also complain to the Information Commissioner's Office.
8. Children
Koishi Fall does not knowingly collect personal information from children. There is no account, chat, advertising or user-generated content. A parent or guardian can contact us if a child has sent information to support and ask us to remove it.
9. Changes to this notice
We will update this page before adding any feature that changes how data is handled, such as cloud saves, online leaderboards, analytics or accounts. The effective date at the top shows when this notice last changed.