Privacy Policy

Effective date: 1 November 2026

Darek is a Polish voice assistant for Android. While you have him listening, he waits for one of a few fixed spoken Commands, such as “Darek, otwórz bramę”, answers out loud, and then calls the phone number you gave that Command, which is how a GSM gate opener is driven. This policy describes what the app does with information about you. It is short because the app does very little.

The app collects nothing

Darek has no account, no sign-in and no server. The app has no permission to use the internet and never opens a network connection, so nothing it hears ever leaves your phone. The one thing that does, at its request, is the call a Command places: to the number you typed for it, through your own mobile operator, from your own number, as described below.

There is no advertising, no analytics, no crash reporting of its own, and no third-party SDK that phones home. The Google Play Billing library, which handles the optional tip, carries usage logging of its own; without the internet permission it has no way to send it, and Android’s backup leaves it out.

What the app can access, and why

• The microphone, only while you have Listening on. You start Listening yourself, in the app, from its notification or from its Quick Settings tile, and you stop it the same way; it never starts by itself, not even after the phone restarts. While it is on, the app’s screen, or later its notification, says that Darek is listening. The sound is processed on your phone, frame by frame, by an offline speech recogniser that comes inside the app, and the only thing kept is the text of a Command it recognised, in memory, long enough to act on it. Audio is never recorded, never stored and never sent anywhere. Listening pauses while Darek speaks and while his call is in progress.
• Phone calls, only to the numbers you enter. Darek comes with no phone numbers and never reads your contacts or your call log. The number you type in for a Command is kept on your phone and used for one thing: placing the call that Command asks for, after Darek has said his reply and given you a moment to cancel. The call goes through your phone’s own calling service on your own SIM, like a call you dial yourself: it appears in your phone’s call log, and your mobile operator carries it.
• Notifications, for the Listening notification, and after a restart for the one that offers to start Listening again.
• Google Play billing, which lets the app ask the Google Play app for the price of a tip and open its payment sheet. It gives the app nothing about you.

Darek’s voice. Darek speaks his replies in his own voice, made by a speech synthesiser that comes inside the app and runs on your phone. No other app is given the reply, and what he says is never recorded or sent.

On some phones, Xiaomi’s among them, the app may also send you to two of your phone’s own Settings screens, so that the phone does not stop Listening in the background: battery use and autostart. It asks for neither as a permission and keeps nothing from either.

The app stores its settings on your phone: the numbers you entered, which Commands are on, and your theme and language choices.

When you write to the developer

Help and feedback in the app has a row to report a problem and one to suggest a feature, and the language settings have Something read wrong?. Each opens your own email app with a draft addressed to [email protected]. The draft carries the app’s version, your Android version, your phone’s make and model, and the language you are reading the app in, so a report can be acted on. You see every line before sending, can change or delete any of it, and nothing is sent unless you send it yourself. A sent email reaches the support mailbox and is used only to answer you. The row for rating the app opens Google Play and sends no mail.

The things that happen outside the app

These are done by the operating system or by Google, not by Darek, but they are the honest answer to “where could my data be”:

1. Android’s automatic backup. If it is enabled on your phone, Android backs up the app’s settings, including the numbers you entered, to your own Google account, in a space that does not count against your storage quota and that Google states apps cannot read; Android’s own phone-to-phone transfer carries them to a new phone the same way. Databases are excluded from both. You can turn backup off in your phone’s settings.

2. Google Play. Installing and updating an app is a transaction between your phone and Google, with its own privacy policy. The developer of this app receives aggregate, anonymous statistics — install counts, crash rates, country-level breakdowns — and no information about individuals.

   A tip, if you leave one, is paid to Google Play under Google’s terms. It is optional and unlocks nothing. The app asks the Play app on your phone for the prices and opens Play’s own payment sheet; your payment details go to Google and never to the app, and the app keeps no record of a tip. The developer receives the payment and Google’s order reports, which show for each tip the product, the price, your country, state and postcode, and the model of your phone — and your city, in the few countries where the developer rather than Google is the seller — but not your name or payment details. The developer uses them only for accounting.

Children

Darek is meant for adults. It is not directed at children, and it collects nothing from anyone.

Deleting your data

Uninstalling the app removes everything it stored on the phone, including the numbers you entered. A copy can be in two other places:

• Android’s backup in your Google account, if backup is on. It outlives an uninstall, which is how a reinstall gets your settings back. To remove it at once, turn backup off in your phone’s settings, or delete it under Backups in Google Drive, which deletes your phone’s whole backup, not only Darek’s settings. If Darek is still installed, clearing its data in your phone’s settings also works: Android’s next backup, at most a day later, replaces the copy with the cleared settings.
• An email you sent the developer. It is kept in the support mailbox, with your email address and what the draft carried, until you ask for it to be deleted. Write to the address below and it will be.

Changes

If this policy changes, the date at the top changes with it, and the history of this file is public in the repository.

Contact

[email protected]