Privacy Policy

Effective date: May 27, 2026.

DisplayHelper is a local-first macOS menu-bar utility for controlling the built-in display in mirrored Mac setups.

No sign-in, subscription account, or user profile.
No event tracking, session tracking, advertising pixels, or usage telemetry.
Feedback opens an email draft. Nothing is sent unless you choose Send.

Data Collection

DisplayHelper does not collect, store, sell, share, or transmit personal information through its display-management features. Xintech LLC does not receive information about your displays, settings, usage, or device from the app unless you intentionally send it through email support.

No account is required.
No analytics, tracking SDKs, advertising SDKs, or crash-reporting SDKs are included.
No background telemetry is sent to Xintech LLC.

Local Data

DisplayHelper may store a small amount of local preference data and a bounded local diagnostic log on your Mac. This is used only to make the app behave consistently between launches and to prepare bug-report drafts when you choose to report a bug.

Local preferences may include:

Whether automatic blackout is enabled or disabled.
A local display identifier used to remember the preferred external display for mirroring.
A small bounded log of DisplayHelper diagnostic messages used for bug-report drafts.

The app uses macOS display APIs to inspect display layout, detect mirroring, adjust built-in display brightness, temporarily dim active displays when you choose "Dim Displays Until Key Press," manage Start at Login when you enable it, and restore a fixed safe brightness value when needed. For temporary dimming, DisplayHelper checks whether a key is pressed only so it can restore the displays; it does not record key names, typed text, or keyboard history. DisplayHelper does not store your previous brightness.

Network Activity

DisplayHelper's normal display controls do not require a network connection. The App Store build does not include automatic update checks or a "Check for Updates..." menu item.

Feedback menu items open a draft in your default email app. The app does not send email automatically, and nothing is sent unless you choose Send.

Bug Reports, Feature Requests, and Feedback

The "Report a Bug...", "Suggest a Feature...", and "Send Feedback..." menu items open a draft in your default email app addressed to Xintech LLC. The app does not send email automatically. You can review, edit, or delete the draft before sending it.

The draft may include a short diagnostic summary so support can understand the context: app version, macOS version, processor architecture, Auto Blackout state, built-in mirroring state, and current app status. Your email address is visible to Xintech LLC only if you send the email.

Bug report drafts also include a bounded excerpt of recent DisplayHelper diagnostic logs. Feature request and general feedback drafts do not include logs.

Diagnostics and Logs

DisplayHelper writes diagnostic messages to Apple's local unified logging system and keeps a small bounded app-local diagnostic log. These logs are stored locally on your Mac. Choosing "Report a Bug..." collects a bounded DisplayHelper-only excerpt from the app-local log and inserts it into the email draft.

The log excerpt uses the last 20 minutes of DisplayHelper logs when available. If there are too few recent entries, the app may look back up to 24 hours and include the most recent DisplayHelper entries, capped at 180 lines and 16,000 characters. Nothing is sent unless you choose Send, and you can delete the log excerpt first.

Your Choices

You can leave feedback drafts unsent, edit them, or delete diagnostic details.
You can delete diagnostic summaries or log excerpts before sending bug reports.
You can remove local app preferences using normal macOS preference-management tools.

Contact

For privacy questions or support, contact Xintech LLC at admin@xintechllc.com.

Xintech LLC may update this policy if DisplayHelper's behavior changes. The effective date above will change when the policy changes.