Privacy Policy

Product: Mic Volume Lock for Windows (Stream Deck plugin for Windows) · Provider: GRAMSHIFT (Tokyo, Japan) · Last updated: 2026-10-09

Summary

The plugin works on your own PC only. It does not send anything anywhere, and it does not collect or send any data about you or your PC. It has no account, no online service, no analytics and no telemetry, and it makes no network requests of its own. It does not record or listen to any sound.

What the plugin reads and changes on your PC

It reads the list of active playback and recording devices from Windows (their names and Windows endpoint identifiers), which devices are the defaults, and the volume level and mute state of the devices you choose.
It writes the volume level of a device whose lock is on, or that you change with a dial or a scene, and unmutes a device only when you turned on "Unmute when muted" for its lock. It never mutes anything, never changes which device is the default, and changes no other audio setting.
It asks Windows to tell it when the volume of a locked device changes. The plugin puts a mark on its own changes, and Windows passes that mark along, so the plugin can tell its own changes from those of other programs. It does not find out which other program made a change.
To do this, it starts Windows PowerShell (part of Windows) in the background, which runs a small helper of the plugin. It runs as you, with no administrator rights, and ends with the plugin.
It reads none of your files, windows, keyboard input or audio, changes no other Windows setting, and installs nothing outside its own folder.

Where data goes

Data	Where it is processed	Stored by the plugin?
Device names, endpoint identifiers, volume levels and mute states	Read from Windows, kept in memory, shown on the keys and in the settings pages	The locks (device, level, on or off, unmute) and the names of devices you have chosen are kept in the plugin's settings in the Stream Deck app on your PC, so that the locks hold again after a restart.
Key settings (device, level, look, name)	Saved by the Stream Deck app on your PC, like any key	Only in your Stream Deck profile on your PC.
Technical log	The Stream Deck plugin framework writes a small log file in the plugin's folder	On your PC only. Device names are not written into it.
Anything sent to GRAMSHIFT servers	—	Nothing.

The plugin talks only to the Stream Deck app on the same PC, through a local connection (127.0.0.1) that the Stream Deck app provides to every plugin. If you export or share a Stream Deck profile, the key settings in it go with it. If you use a backup or sync feature of the Stream Deck app, Elgato's terms apply to it.

Purchases

The plugin is sold on the Elgato Marketplace. Purchases, payments and licenses are handled by Elgato (Corsair) and its payment provider under Elgato's own terms and privacy policy. GRAMSHIFT never receives card details. If Elgato provides us with sales records (for example the date, country and amount of a sale), we use them only for accounting and tax.

Support requests

If you contact us, we receive what you choose to send (for example your email address, your message and any screenshots). We use it only to answer you. Email to contact@gramshift.com is forwarded by our email forwarding provider (ImprovMX) to a mailbox hosted by Google (Gmail), so those providers process support emails on our behalf.

Our role and legal basis

The plugin works only as a tool on your own computer: GRAMSHIFT does not receive or process anything from it. For sales records and support emails, GRAMSHIFT is the controller. We rely on our legitimate interest in answering requests and on legal obligations (for example tax records). GRAMSHIFT is based in Japan, so this information is processed in Japan and by the providers named above.

Your rights

You can ask us to access, correct or delete personal information we hold about you, or object to its use, by emailing contact@gramshift.com. If you are in the EEA or the UK, you can also complain to your local data protection authority.

Retention and deletion

Removing the plugin in the Stream Deck app removes its folder and log. The key settings and the plugin's settings are held by the Stream Deck app, and we have not verified whether the Stream Deck app deletes them when the plugin is removed. Support emails are kept only as long as needed to handle the request and meet legal obligations; you can ask us to delete them. Sales records are kept for up to 7 years for accounting and tax.

Changes

If the plugin ever starts to send or store other data, this policy will be updated before that change is released, and the date above will change.

Contact

GRAMSHIFT · contact@gramshift.com · 1-10-8 Dogenzaka, Shibuya Dogenzaka Tokyu Bldg 2F-C, Shibuya-ku, Tokyo 150-0043, Japan