Privacy Policy

When this policy applies

This policy covers apps published by Twist Labs LLC that link to this page and do not provide a separate privacy policy. The shared terms apply to those apps; the app-specific sections explain their data practices. If an app provides a separate privacy policy, that policy applies instead.

Our approach to your data

We do not collect personal data from ordinary use of the apps covered by this policy. Information an app processes on your device or stores in your own iCloud account is not sent to Twist Labs. If you contact us, we receive the information you voluntarily send, as described below.

We do not sell personal data, track you across other companies’ apps or websites, or build advertising profiles. Any anonymous usage or diagnostic information we receive is used only to improve our apps. We do not associate it with you, attempt to identify you from it, combine it with personal information, sell it, or make it available to anyone else. The app-specific sections identify the information actually received and how you control sharing.

One More Stone

Games and iCloud

Games, reviews, statistics, and settings are stored on your device. KataGo runs on-device; no game content is sent to a remote AI service. If iCloud is enabled, Apple syncs your games and settings between your devices using private iCloud storage and sync notifications. Twist Labs does not receive this content or your Apple Account details.

Apple handles iCloud data under its Privacy Policy and iCloud security protections. You can disable iCloud for the app in system settings; doing so stops future syncing but does not delete existing cloud data.

SGF files

Imported SGF games become part of your library, including iCloud sync if enabled. Exports go only to the destination you choose. Files may contain player names, dates, and comments, so check them before sharing. They are not sent to us unless you choose to send them for support.

Diagnostics

The app has no in-app analytics collector or third-party crash-reporting service. If you enable Apple’s diagnostic sharing, Apple may provide us with aggregated or non-personally-identifying crash reports and usage statistics under its App Analytics & Privacy notice. You can withdraw consent in your system’s Privacy & Security → Analytics & Improvements settings by turning off sharing with app developers.

Retention and deletion

Games and settings remain on your devices and in iCloud until removed. Delete games individually or use Delete All Game Data in the app’s Settings to remove games, reviews, and statistics. Deletions reach iCloud and other devices when sync is available. Minimal local sync and deletion metadata may remain, without deleted moves or reviews.

Delete All Game Data leaves preferences unchanged. Manage remaining iCloud data through Apple’s storage controls and device-local storage through system app-data controls where available; contact us if you need help. Removing the app does not necessarily remove iCloud data. Exported or shared copies must be deleted separately. Apple manages its own backups and retention. We cannot remotely access or delete your private library.

We retain anonymous diagnostics only while needed to fix problems and improve the app. Turning off diagnostic sharing stops future reports, not reports already received. Because these reports are not linked to you, we cannot isolate and delete your contribution to an anonymous or aggregated report.

Support and feedback

If you email us, we receive your email address, message, and any attachments or other information you choose to send. We use them to respond, investigate the issue, and resolve your request. Please send only information needed for that purpose, and remove sensitive details from screenshots or game files before sending them.

Our email service, Fastmail, processes messages to deliver and store our correspondence. It provides access controls and secure transmission safeguards under its Privacy Policy. Email is not guaranteed to be end-to-end encrypted. We limit access to support correspondence to people who need it to handle your request. We do not use it for advertising, combine it with anonymous app analytics, or sell it. Apart from email delivery and storage providers, we do not disclose it to others unless required by law.

We keep support correspondence only as long as needed to handle the request and related follow-up, or to meet legal obligations. You can ask us to delete it, correct it, or stop using it by emailing the contact address below. We will delete information we control unless we are legally required to retain it, and explain any such limitation. Provider backups may persist under the provider’s retention policies.

Changes to this policy

We will update this page and its effective date when our practices change. Apps with different practices will be described in their own section or provide a separate policy. If a change requires your consent, we will request it before collecting the affected data.

Contact

Twist Labs LLC is responsible for the information we receive under this policy. For privacy questions, withdrawal of consent, or deletion requests, email hello@twistlabs.llc.