Umbra · Black 4 Square
Privacy Policy
Effective 11 October 2026
This privacy policy is for the Umbra game on Google Play, package com.black4square.Umbra, and its web version. The developer is Black 4 Square, the name under which Daniil Denysov publishes games.
In short
- Umbra does not ask for, collect or send any personal information.
- There are no accounts, no ads, no in-app purchases and no analytics.
- Your progress and settings stay on your device.
- We do not sell or share any information about you.
Who we are
Umbra is a game published under the name Black 4 Square. Black 4 Square is not a registered company: the game is developed by Daniil Denysov, an independent developer in Ukraine, who is responsible for this policy. In this policy "we" and "us" mean Daniil Denysov publishing as Black 4 Square.
This policy covers the Umbra app on Google Play (application ID com.black4square.Umbra), published by the developer account Black 4 Square, and the web version at umbra.black4square.com. Contact: contact@black4square.com, Daniil Denysov, Ukraine.
What we collect
Nothing. Umbra has no accounts or sign-in, no leaderboards, no advertising, no analytics of its own and no online features: the game does not talk to any server of ours, because there is none. It does not ask for access to your contacts, location, photos, camera or microphone. On Android the only permission it uses is vibration, for the optional haptic feedback.
Stored on your device
Umbra keeps your progress (the levels you have cleared, your stars, the memories you have found and your best Daily Shadow) and your settings (sound, music, vibration, language and the other options in Settings) on your device, or in your browser's storage in the web version. This information never leaves your device and we cannot see it. It stays there until you uninstall the game, clear its storage in your device's settings or clear the site's data.
Your Daily Shadow result
When you finish a Daily Shadow, the game copies a short result line to your clipboard (the date, your moves, the par and a row of squares for your steps) so you can paste it wherever you like. It contains nothing about you, and the game itself sends it nowhere.
The game engine and hosting
These services work under their own policies. We receive nothing from them about you.
- Unity Technologies: the game engine, which may send Unity anonymous hardware statistics such as the device model, operating system and graphics card. Privacy policy
- Google: Google Play delivers and updates the Android app. Privacy policy
- GitHub: hosts the web version and these pages, and receives the technical information any website receives, such as your IP address. GitHub privacy statement
Children
Umbra contains no violence, no chat, no ads and no purchases, and collects no personal information from anyone, children included.
Your rights
Because we hold no personal information about you, there is nothing for us to access, correct or delete. You can remove your progress at any time by clearing the game's storage or uninstalling it. If you have a question about your privacy, email contact@black4square.com; we reply within 30 days. You also have the right to complain to your local data protection authority.
Changes to this policy
If we change this policy we will publish the new version on this page with a new effective date. If a future version of the game starts to collect any information, this page will say so before that version is released.
Contact
Black 4 Square (Daniil Denysov), Ukraine
contact@black4square.com