1. Operator and scope
This policy applies to the Eightmo dance practice app and this public website, operated by Corza LLC (“we,” “us,” or “our”).
2. Information in the Eightmo app
| Information | Purpose and storage | Transmission |
|---|---|---|
| Videos you select | Copied to the app’s local storage for playback, range practice, and saved practices. | Eightmo does not send them to us or to a third-party server. |
| Ranges, speed, repetitions, countdown, mirroring, and other settings | Stored locally to run and resume practice. | Not transmitted. |
| Practice history | Start time, practice conditions, completed repetitions, and duration are stored locally. The history does not add another copy of the video. | Not transmitted. |
| Diagnostic details | During video import, file size, extension, duration, resolution, codec, and error details may be written to the device’s system log. | The app has no feature that sends these details to us. OS diagnostic sharing depends on your device settings and Apple’s practices. |
On iPhone and iPad, Eightmo uses Apple’s system photo picker and receives only the video you choose. It does not request access to read your entire photo library, camera, microphone, or location. When a selected video is in iCloud Photos, the operating system may retrieve it at your request. On Mac, Eightmo reads a file you select or drop into the app.
The app contains no user account, cloud sync, custom network communication, advertising, behavioral analytics, tracking, or payment implementation. Data is not automatically synchronized between iPhone / iPad and Mac.
3. Public website
This website is delivered using Cloudflare Pages. We have not added advertising, analytics tags, web forms, or optional cookies. Cloudflare may process IP address, request time, URL, and device or browser communication data to deliver and secure the site and prevent abuse. Cloudflare handles that information under its applicable agreements and policies.
4. Support email
If you contact us by email, we handle your email address, message, and details you choose to provide—such as app version, OS, device, and steps to reproduce—to reply, investigate problems, keep a support record, and prevent abuse. Our email service provider also processes the message. We retain it only as reasonably needed for those purposes and for legal or security requirements. Do not include videos, faces, third-party copyrighted material, passwords, verification codes, or private keys in your first message.
5. Retention, deletion, and device backups
App data remains on your device until you delete it in the app or the operating system deletes the app and its data. The settings screen lets you delete data for a video, all practice history, or all local Eightmo data. These actions do not delete the original video in Photos or the original file on Mac.
Operating-system backups, restore operations, or app offloading may preserve or restore data. Apple and your device settings control those processes. To remove Eightmo data with certainty, use “Delete All Local Data” in the app first.
To request deletion of a support email, contact us with enough information to identify it. We may retain information when reasonably necessary to comply with law, protect rights, maintain security, or address a dispute.
6. Disclosure and service providers
We do not sell or disclose support information to third parties except with your consent, as required by law, or when necessary to protect life, safety, or property. Providers involved in website delivery and email operation process information only as needed to provide those services.
7. Security
We use reasonable safeguards appropriate to the information we handle. No storage or transmission method is completely secure. Protection of local app data also depends on your device and its settings.
8. Children
Eightmo does not require an account and does not send personal information from the app to us. Where a child needs parental consent or assistance based on their age and location, a parent or guardian should help with use and support requests.
9. Changes
We may revise this policy when features, delivery methods, or legal requirements change. We will describe material updates on this page and update the effective date.
10. Contact
Corza LLC
Email: hashido@corza.co.jp