Bluehour brings you one beautiful city skyline each day — photographed in the brief luminous window between darkness and night, when the sky turns deep blue and the lights come on.
Bluehour is built around a simple idea — the blue hour is worth a moment of your morning.
Each morning a different city is waiting — Singapore tonight, Reykjavík at dawn, Doha glowing across the bay.
Tap the map and land anywhere — Mumbai at dusk, Toronto at twilight, Cape Town in the soft glow before sunrise.
Blue hour is happening somewhere on Earth every minute. See exactly which cities are in it right now, with a live countdown.
Save any skyline and it joins your personal gallery. Turn on wallpaper rotation for a fresh view every morning.
A growing collection of skylines from around the world — browse by continent, tallest building, or cities you've already seen.
Sun positions are computed locally from your device clock. Open the app at any moment to find which cities are in blue hour, golden hour, or pre-dawn light right now — with a countdown of how long that light will last.
One new city every morning, photographed at blue hour with photographer credit, building facts, and city notes.
A living map of cities — tap anywhere to land. Browse by continent, tallest building, or what you've already seen.
Real-time sun position calculations show exactly which cities are in blue hour, golden hour, or pre-dawn light this second.
Save the views you love. Your collection grows quietly as you wander through cities and times of day.
Turn it on and a new view from your gallery drops into your Photos library each morning — refresh your lock screen with a tap.
Every image is credited — name, city, and a link to the photographer's profile, as required by Unsplash guidelines.
For anything about the app, privacy, or permissions — reach out any time. Every message is read and answered personally by the developer.
Best for app questions, image attribution enquiries, or data requests.
[email protected] Include "Privacy" in the subject for data deletion requests.For direct or urgent contact with the developer.
+48 698 408 615 Available during business hours.Bluehour is designed and built by a solo developer who personally responds to every message.
Damian Polak Service Provider & developer of Bluehour.Complete privacy policy for Bluehour, reproduced in full.
This privacy policy applies to the Bluehour app for mobile devices, together with any related services operated by Damian Polak (collectively, the "Application"). Damian Polak is hereby referred to as the "Service Provider".
The Application does not collect, log, or store any personal information when you download and use it. Registration is not required. If the Application is used with an active internet connection, technical protocol data (such as your ephemeral IP address) is transmitted to facilitate network connectivity, but this data is not retained or used for tracking.
This Application does not collect precise information about the location of your mobile device.
Since the Application does not collect any information, no data is shared with third parties.
Since the Application does not collect personal information through normal use, uninstalling it simply removes the Application from your device.
If you contact the Service Provider directly or voluntarily provide information by other means, you may request deletion of that information by contacting [email protected].
The Application is not intended for children under 4 years of age, or such higher age as required by applicable law. The Service Provider does not knowingly solicit data from children or market to them. Since the Application does not collect personal information through normal use, children's data is not at risk from use of the Application alone. If you voluntarily provide personal information through other means and are under 4 years of age, your parent or guardian must provide consent on your behalf where permitted by law.
Because the Application does not collect personal data, the risk of personal data exposure is minimal. However, no security system is completely secure. The Service Provider implements reasonable safeguards to protect systems and any data it holds.
Since the Application does not collect personal data through normal use, the risk of a data breach affecting your personal data is minimal. If a breach occurs involving any data you have voluntarily provided, the Service Provider will notify you as required by applicable law.
The Service Provider may update this Privacy Policy from time to time. The Service Provider will notify you of material changes by posting the updated Privacy Policy with an effective date. Where required by law, the Service Provider will seek your consent to material changes before they take effect.
Previous versions of this Privacy Policy will be maintained and made available upon request by contacting the Service Provider at [email protected].
If you voluntarily provide information to the Service Provider and processing is based on consent, you may withdraw that consent at any time without affecting processing carried out before withdrawal.
If you have any questions regarding privacy while using the Application, or have questions about the practices, please contact the Service Provider via email at [email protected].
This privacy policy is effective as of 2026-07-03