HeadTask — Privacy Policy

Last updated: 2026-09-28
Application: HeadTask for iOS

Introduction

HeadTask ("the App") is an iPhone task-management app that puts the things you have to do in order and shows only the one to do now.

Through the App, the developer collects none of your personal information, none of the content of your tasks, and no usage data. Your tasks are stored only on your iPhone and in your own iCloud.

1. Information We Collect

None.

The developer does not collect or record any of the following:

Personally identifiable information such as your name, email address, phone number, or account details
The content of the tasks you register (names, deadlines, estimated durations, notes, time spent working on them, and so on)
What you say to the App, or the text created from your voice
Location data
Device identifiers or advertising identifiers (IDFA)
Usage data, interaction logs, crash logs, or any other statistics

The App has no account system and never asks you to sign in.

2. Network Communication

The App communicates over the network in only the following two ways.

Sync with iCloud: To sync your tasks with your other devices that use the same Apple Account, the App communicates with Apple's iCloud (the CloudKit private database). The data is stored in your own iCloud space, and the developer cannot see its contents.
Integration with Linear (only if you set it up): The App communicates with Linear only if you enter an API key for Linear (an external task-management service) in Settings (Section 6).

The developer operates no servers, and no data is ever sent from the App to the developer.

3. Where Your Tasks Are Stored

The tasks you register are stored only on your iPhone and in your own iCloud. Deleting the App deletes the data on your iPhone. Data remaining in iCloud can be deleted from the iPhone's Settings app → your name → iCloud → Storage (or Manage Account Storage).

4. Your Voice and On-Device AI (all processed on your device)

Voice: What you say to the App is converted to text on your device by Apple's speech recognition built into iPhone (SpeechAnalyzer). Your voice itself is never stored and never sent outside the device.
On-device AI: The App may use the AI built into iPhone (Apple Intelligence) to draft suggested answers used to decide the order of your tasks, and to interpret the meaning of what you said. This processing also takes place on your device and is never sent to the developer or to any third party.
No cloud AI service is used.

5. Permissions the App Requests

The App requests only the following one permission.

Microphone access (NSMicrophoneUsageDescription)

Used so that you can register tasks by speaking, and operate the App by saying things such as "done" (終わった). Your voice is converted to text on the device and is not sent outside it. Even without microphone access, you can type instead and use the App in the same way.

Permissions the App does NOT request

The App does not request the following permissions:

Location, camera, photos, contacts, calendar, notifications, or tracking authorization (App Tracking Transparency)

6. Integration with Linear (optional)

Only if you enter a Linear API key in Settings does the App communicate with Linear (https://linear.app), as follows.

The App reads your Linear tasks from Linear.
When you mark a Linear task as complete in the App, the App reflects that completion in Linear.
When you split a Linear task in the App, the App registers the names of the resulting tasks in Linear.

This communication takes place directly between the App and your own Linear workspace only, and does not pass through any server run by the developer. The content of tasks you create in the App (tasks not imported from Linear) is not sent to Linear. The API key you enter is stored in the iPhone Keychain (the system's secure storage for passwords and similar information). For how Linear handles information, please see Linear's privacy policy.

If you have not set up Linear, the App never communicates with Linear at all.

7. Settings and Records Stored in the App

The App stores the following only on your device (in iOS UserDefaults and the Keychain). They are never sent outside the device, and deleting the App deletes them.

Settings such as your working hours per day and the end of your business day, and settings for display and read-aloud
Information used to show your current task in the widget
A record of whether the short morning and evening messages have been shown
Settings that work together with Focus
Diagnostic records from when voice recognition did not work well (the "音声の診断" (Voice Diagnostics) item in Settings; only if you copy them can you yourself use their contents)
Whether the first-run explanation of how to use the App has already been shown
Your Linear API key (only if you entered one; stored in the Keychain) and the sync status

8. Advertising, Analytics, and Third Parties

The App displays no advertising and includes no advertising SDK.
The App includes no analytics or behavioral-tracking SDK of any kind.
The App has no third-party library or SDK dependencies — it uses only the frameworks Apple ships with iOS.
Because the developer collects no data, there is no data to share with or sell to third parties.
The App does not track you and does not link information across other companies' apps or websites.

9. Children's Privacy

The App is not directed at any particular age group. Because it collects no personal information from any user, it collects none from children either.

10. Your Rights

Because the developer neither collects nor holds personal data, the developer holds no data subject to access, correction, or deletion requests. You can erase the data on your device at any time by deleting the App, and the data in iCloud by following the steps in Section 3.

11. Changes to This Policy

If this policy changes, for example because features are added to the App, this page will be updated and the "Last updated" date revised. Material changes in how data is handled will also be noted in the App's release notes.

12. Contact

For questions about this policy or about privacy in the App, please contact:

Business operator: Eika (エイカ)
Representative: Akira Iizuka
Address: disclosed without delay upon request.
Email: headtask@nowi.tokyo