Last updated: February 13, 2026
Chargy checks for updates on launch and offers optional, opt-in anonymous analytics. All monitoring data stays on your Mac. If you choose to enable analytics, only non-personal technical data (Mac model, macOS version, app version, battery health) is collected to help us improve the app. You can disable analytics at any time in Settings.
Chargy checks for new versions on each launch by sending a request to our server that includes only the current app version number. No device information, hardware identifiers, or personal data is transmitted during update checks. This cannot be disabled, as it ensures you always know when security or stability updates are available.
Chargy offers optional, opt-in anonymous analytics. On first launch, you are asked whether you'd like to share anonymous usage data. If you consent, the following data is periodically sent to our server:
This data is used to understand which Mac models and macOS versions our users have, to identify common issues, and to display aggregate statistics (active user count, total installs) on our public dashboard. You can disable analytics at any time in Settings. When disabled, no analytics data is sent.
Regardless of analytics settings, Chargy:
Chargy stores the following data exclusively on your local machine. This data never leaves your computer and exists solely for the application to function correctly:
2.1 User Preferences
These are stored in macOS UserDefaults (the standard macOS preferences system) at ~/Library/Preferences/ and in a JSON configuration file at /Library/Application Support/Chargy/config.json.
2.2 Power History Database
This data is stored in a local SQLite database at ~/Library/Application Support/Chargy/history.db. Data is automatically pruned: raw readings are kept for 2 hours, minute averages for 48 hours, and hourly averages for 30 days. This data powers the history charts and daily energy consumption calculation.
2.3 Daemon Communication Files
These files are stored at /Library/Application Support/Chargy/ and are used exclusively for local inter-process communication between the menu bar app and the background daemon.
2.4 Daemon Log File
The background daemon writes operational logs to /Library/Application Support/Chargy/daemon.log. This log contains technical information such as SMC key states, charging actions taken, calibration phase transitions, and error messages. The log file is automatically truncated at 1MB to prevent unbounded growth. It does not contain personal information.
3.1 System Management Controller (SMC)
Chargy requires a privileged helper daemon running as root to read from and write to the System Management Controller (SMC). The SMC is a hardware controller in your Mac that manages power, thermal, and charging subsystems. Chargy accesses the following types of SMC keys:
The daemon does not read or write any other SMC keys. All SMC keys are restored to their factory default values when the daemon shuts down or is uninstalled.
3.2 IOKit (Battery Information)
The menu bar app reads battery information from macOS IOKit services (AppleSmartBattery). This includes:
This data is read locally from the operating system's power management subsystem and is never transmitted externally.
3.3 Process Information
Chargy reads the top 5 processes by CPU usage (process name and CPU percentage only) using the system ps command. This is used to estimate per-process power consumption. Only the process name and CPU percentage are read — no process arguments, file paths, user information, or other details are accessed.
3.4 Administrator Privileges
Installing or uninstalling the background daemon requires a one-time administrator password prompt. This is handled by macOS through a standard AppleScript authorization dialog. Chargy does not store, cache, or log your administrator password.
Chargy includes an AI-based efficiency scoring algorithm that evaluates your current power usage patterns and provides recommendations. This algorithm:
This website (chargy.app) is separate from the Chargy application itself.
5.1 Contact and Bug Report Forms: If you voluntarily submit a contact form or bug report through our website, we collect the information you provide (name, email, message, and any technical details you include). This data is stored on our web server and used solely to respond to your inquiry or investigate reported issues.
5.2 Web Server Logs: Like most websites, our web server may automatically log standard request information (IP address, browser user agent, pages visited, timestamps). These logs are used only for server maintenance and security monitoring, and are not used for tracking or profiling.
5.3 No Cookies: This website does not use cookies, local storage, or any client-side tracking mechanisms.
When analytics is enabled, Chargy communicates only with our own server (chargy.ai) to send anonymous usage data. The application does not integrate with any third-party analytics, advertising, or tracking services.
This website may use third-party hosting infrastructure to serve static files. No user tracking is performed through these services.
Local data and server-side data retention:
Local data files use standard macOS file permissions. The daemon configuration directory uses appropriate permissions to allow communication between the user-level app and root-level daemon. No encryption is applied to local data files as they contain no sensitive personal information — only technical battery and power metrics.
Chargy does not collect personal data from anyone, including children under the age of 13. The optional anonymous analytics collects only technical device data, not personal information. The application does not contain any age-gated content or features.
If you enable analytics, your anonymous technical data may be stored on servers located in the United States. No personal data is transmitted. All monitoring data remains on your local machine regardless of your geographic location. This policy applies equally to users worldwide.
Under various data protection regulations (including GDPR, CCPA, and similar laws), you may have rights regarding your personal data. Since Chargy's analytics collects only anonymous technical data with a random device ID (not linked to your identity), these rights are largely satisfied by default. You can disable analytics at any time in Settings, and uninstalling the app resets your device ID.
For data submitted through our website contact forms, you may request deletion by contacting us. We will honor such requests promptly.
We may update this Privacy Policy from time to time to reflect changes in the application or applicable laws. When we make changes, we will update the "Last updated" date at the top of this page. We encourage you to review this page periodically. Continued use of the application after changes constitutes acceptance of the revised policy.
If you have questions, concerns, or requests regarding this Privacy Policy or Chargy's data practices, please contact us: