Racia is an app for voice communication and messaging within a single local network. It works with a server that your organization installs and operates itself: on an office computer, a mini PC on the shop floor or on an employee’s phone.
What the app does NOT do
- Does not show ads and does not use an advertising identifier.
- Does not collect analytics: there is no Firebase, AppMetrica, Google Analytics or any other counters in the app.
- Does not send crash reports.
- Does not determine your location.
- Does not transfer data to third parties — neither to ad networks, nor to analytics services, nor to anyone else.
- Does not require registration with the developer: the account is created for you by the administrator on your server.
What data goes where
| Data | Where it goes | Why |
|---|---|---|
| Login, display name, password | Your organization’s server | Signing in to the app. The password is stored as a hash; the original cannot be recovered from it. |
| Messages and attachments | Your organization’s server | Messages in channels and direct messages. The retention period is set by your administrator. |
| Voice on air | Passes through the server, is not stored | The server forwards the sound to listeners and does not write it to disk. A recording of conversations does not exist. |
| Device name and network address | Your organization’s server | To show the administrator who is connected and to allow disconnecting a lost phone. |
Permissions requested by the app
| Permission | Purpose |
|---|---|
| Microphone | Transmitting voice while the air button is held. When the button is not pressed, the microphone is closed. |
| Notifications | To show that the radio is receiving and to notify about a direct message or a mention. |
| Camera | Scanning a QR code when connecting to a server and video in the meeting room. No shooting takes place outside these screens. |
| Wi-Fi, Bluetooth, “Nearby devices” | Finding the radio server in your network. The mode in which a phone creates a network by itself when there is no Wi-Fi at all is still under development. |
| Location | Android before version 13 does not allow searching for devices on the network without this permission. The app does not request coordinates and does not know where you are. |
Protection in transit
The connection to the server uses TLS. The certificate is issued by the server itself, so on the first connection it must be confirmed once — this is described in the installation instructions.
For channels with a passphrase, the audio is additionally encrypted on the sender’s device and decrypted on the recipient’s; the server only forwards such channels and does not see the content.
Browser notifications
This applies only to the web version opened in a browser — it does not apply to the Android app.
If you have allowed notifications in the browser, they are delivered through your browser’s service (Google or Mozilla, depending on the browser). The notification text is encrypted on your server with your browser’s keys, so the delivery service does not read it. It sees only the fact of delivery and the time.
The Android app does not use this service: notifications arrive over a direct connection to your server.
Checking for a new version
Every few hours the server requests a file listing versions from racia.core-stack.ru; the check can be turned off.
How to delete data
- From the developer — there is nothing to delete: we do not store your organization’s messages, air or accounts. (Separately, we have a server that serves this site and the installers; it has no connection to your data.)
- On the device — delete the app; local data is erased with it.
- On the organization’s server — contact your administrator: they can disable the account or erase it together with the messages.
Plan requests
If you submit a request on the plans page, we receive what you entered yourself: the organization name, an email or phone number, the number of seats and a comment. The request is written to our server’s database and is not transferred anywhere. We use it only to reply to you, agree on the terms and issue an invoice. Your device’s address is not saved with the request. You can ask for the request to be deleted by writing to hello@core-stack.ru.
Children
The app is intended for work tasks and is not intended for children under 13. We deliberately do not collect children’s data.
Changes
If the policy changes, we will update the date at the top of the page. Material changes will be shown in the app on the first launch of the new version.
Contact us
Questions about data and this policy: hello@core-stack.ru
Developer: Core Stack Studio
Translation for convenience; the Russian version prevails.