Why a sunset forecast app is worth a look
You can’t schedule a good sky, but you can get a better guess about one. Sunset Score gives every sunrise and sunset a rating from 0 to 100, so instead of decoding a cloud icon at 5 pm you get a number that answers one question: is tonight worth the walk to the hill?
The app is made by CHRISTMAS SERVICES S.R.L., a small company in Timișoara, Romania (shown on Google Play as Christmas LLC). It’s available on Google Play and on the App Store as Sunset Score: Sky Alerts.
Two things to know up front. First, the download is free, but the subscription ($0.99 a month or $7.99 a year) unlocks the forecasts themselves, plus alerts, city search and saved favourites. Second, the app is very new: the Android version showed 10+ downloads at the time of writing, so there’s no track record or user rating yet.
The gap between a weather forecast and a sky worth photographing
A standard forecast answers a different question. “Partly cloudy” can mean a dull grey lid or a burning orange horizon, depending on where the clouds sit and what they’re made of. The raw inputs are in every weather app, but they need interpretation.
Sunset Score does that interpretation for you. According to its listing, it combines cloud layers, humidity, air clarity, sun position and the local event time into one score.
How the 0 to 100 score works
Every sunrise and sunset gets a rating from 0 to 100. Everything else in the app, from city search to notifications, exists to help you act on that number.
The five inputs
Cloud layers. Clouds are the screen the light bounces off, so their height and coverage matter more than the single cloud percentage most forecasts show.
Humidity. Moisture in the air scatters and mutes colour, which is one reason a clear, humid evening can look flat.
Air clarity. Haze and pollution dull the light, so cleaner air tends to give more saturated colour.
Sun position. Near the horizon, sunlight crosses far more atmosphere, which scatters out the blue and leaves warm tones.
Local event time. The app scores the specific minute of sunrise or sunset for a specific place.
The weighting of these factors isn’t published, so treat the score as a summary judgement rather than something you can rebuild from a weather chart.
What the rating tells you
High scores are labelled GREAT or STUNNING. The app doesn’t publish the cut-offs, but its public API documentation shows a score of 74 labelled “great”, which suggests GREAT starts somewhere in the 70s. The developer’s API notes describe the number as a quality score, not a percentage chance of a good sunset.
In practice, read it as a ranking: for the same city, a 90 is more promising than a 60, and both beat a 20. It isn’t a guarantee. The developer’s own FAQ says a high score won’t always mean a beautiful sunset, because conditions change and a building, hill or cloud bank can block your view.
Sunrise gets the same treatment
Scores cover sunrises as well as sunsets. That matters more than it sounds: a sunrise decision happens in the dark, often before coffee, and a number is a better reason to set an alarm than optimism.
Golden hour
The listing pitches the app for golden-hour plans, but it scores the sunrise and sunset events themselves and doesn’t advertise separate golden-hour or blue-hour timings. If you need those windows, pair it with a sun-timing tool, or use an alternative that includes them (see the comparison below).
Features, and what the subscription unlocks
According to the developer’s FAQ, the free download gets you the app; a subscription unlocks the forecasts, alerts, city search and saved favourites. In other words, nearly every feature below needs the subscription. Check the current plans in the app before subscribing.
Alerts for great and stunning skies
You can turn on push notifications for GREAT and STUNNING skies in the cities you choose. The app doesn’t alert you every evening, only when it expects something above the ordinary. For a photographer, that restraint is the point: alerts that fire constantly get muted within a week.
Any city worldwide
You can search any city and save favourite locations, so the app works for trips as well as home. Location access is optional; you can search manually instead.
Multi-day forecasts
The app shows upcoming days so you can compare evenings. The listing just says “multi-day”, but the developer’s public API, which serves the same scores, returns 1 to 3 days. Expect a horizon of about three days, which matches what other sunset forecasters offer, since cloud forecasts become unreliable beyond that.
Shareable cards, no account
Forecasts can be exported as shareable cards, which helps if you organise group outings: a card reading 95 says more than “it might be nice later”. No account is needed; subscriptions are handled through Google Play or the App Store.
Practical ways to use the forecast
With a horizon of about three days, the forecast is a short-range planning tool. Here’s where the number does real work.
A photography workflow
Save the two or three locations you shoot most, so there’s nothing to search. Each morning, glance at the next three days and pick the strongest evening. A high score gives you hours to plan instead of minutes, which is the difference between packing a proper bag and grabbing whatever lens is already on the camera.
The score tells you how promising the sky looks, not what kind of colour to expect. For that, look at the cloud forecast yourself: high, thin cloud and broken mid-level cloud behave very differently. Check the sky in the afternoon too, as forecasts shift.
Travel
Once you’re within a few days of arriving, check the forecast for your destination and plan the evening you care most about around a spot with a clear western (or, for sunrise, eastern) horizon. Weeks ahead, the app can’t tell you anything; for that you’d need climate statistics, not a forecast.
Don’t treat a low score as a reason to skip an outing either. Local terrain, a rooftop or a ten-minute walk can change what you see; the app forecasts the sky, not your vantage point.
Timing posts and short-form video
Creators have to shoot when the sky cooperates and post when their audience is awake. A high score, whatever threshold you settle on after a few weeks of use, is a natural trigger to shoot that evening and post the next morning.
What photography guides say about beautiful sunsets
The app’s inputs match what photography guides have taught for years, which helps explain why a single number is hard to eyeball.
Cloud cover: a range, not a rule
A cloudless sky usually gives a forgettable sunset, because there’s nothing to catch the light, and a full overcast blocks it. Guides suggest a middle range. Digital Photography School recommends 30 to 70 percent cloud cover at sunset, favouring mid and high clouds. LifePixel suggests about 25 to 60 percent of mid and high-level cloud. The ranges largely overlap; the shared lesson is that cloud height matters as much as amount. Low cloud on the horizon can block the light entirely.
Humidity, clean air and the case for winter
Lower humidity generally means more vivid colour, and clean air after rain or wind is a recurring recommendation, because haze and pollution dull the light.
Many photographers rate autumn and winter highly, for reasons the guides spell out. Digital Photography School points to lower humidity in those seasons. LifePixel adds that the sun stays low for much of the day and that crisp, cold air tends to mean better air quality. Note that at the moment of sunset, the light’s path through the atmosphere is long in every season, so that isn’t what sets winter apart. And none of this overrides the cloud forecast: a clear winter evening can still be dull.
How other sunset forecasters compare
Sunset Score isn’t the only app scoring skies. Its main difference is price: it’s cheaper than SkyCandy’s premium tier, but Sunsethue offers its core forecasts free.
App | Platforms | Price | Horizon | How it forecasts | Extras |
|---|---|---|---|---|---|
Android, iOS | Subscription $0.99/month or $7.99/year for forecasts, alerts, search, favourites | Up to 3 days (per its API) | Own model, not described; offers a free public API and MCP server | Shareable cards, no account | |
Web, Android, iOS | Core forecasts free, no ads; paid premium alerts | 3 days | Ray-based model: checks whether sunlight can reach the visible clouds | Golden and blue hour times, uncertainty metric | |
iOS, Android | Free tier; premium $2.99/month or $23.99/year on the App Store | Up to 3 days since its latest API change | Licensed third-party forecast API | Sun direction tool, golden and blue hour, widget |
Sunset Score doesn’t describe its model, but it publishes its own API, which makes it a forecast provider rather than an app reselling someone else’s data. SkyCandy relies on a licensed API; its App Store description credits SunsetWx, while its latest release notes say it switched to a new forecast API, so check its listing for the current source.
Because none of these apps publishes independent accuracy figures, the honest test is empirical: run one alongside your own eyes for a few weeks.
Price, privacy and open questions
What it costs
The subscription is $0.99 a month or $7.99 a year. That’s low for the category, but remember it’s what unlocks the forecasts themselves, not an optional extra. EU residents have a 14-day withdrawal right only if they haven’t used the service; after that, purchases are non-refundable under the developer’s terms.
Privacy: two sources that don’t quite agree
The Google Play data safety section says the app may share location, app info and performance data, and device IDs with third parties, and may collect location, personal info and three other data types. It also says data is encrypted in transit and can’t be deleted.
The developer’s privacy policy tells a more modest story. It says the company runs no server that receives or stores user data and that the app works on your device. Location, if you allow it, is used to request weather data from third-party weather providers. Crash reports go to Sentry with IP addresses scrubbed, and are kept for up to 30 days.
So “can’t be deleted” most likely reflects that the developer holds nothing to delete, rather than a refusal to erase your history; there’s no account and no stored history. The policy also lists GDPR rights, including erasure, via info@sunset-score.com. Still, the Play declaration and the policy should match, and it’s fair to ask the developer to clarify.
What’s still unknown
There’s no published accuracy data, no description of the model, and no published score thresholds for GREAT and STUNNING. With only a handful of downloads so far, there are no user reviews to lean on either.
Frequently asked questions
Which platforms is Sunset Score on?
Android (Google Play) and iOS (App Store, as Sunset Score: Sky Alerts).
Is it free?
The download is free. A subscription ($0.99/month or $7.99/year) unlocks the forecasts, alerts, city search and saved favourites.
How many days ahead does it forecast?
The app says “multi-day”. The developer’s public API returns up to 3 days, so expect about three.
Can I delete my data?
The Play listing says data can’t be deleted, but the privacy policy says the developer doesn’t store personal data on its servers, and there’s no account. For any request, including GDPR erasure, contact info@sunset-score.com.
Where Sunset Score fits
Most weather apps tell you whether you need a jacket; Sunset Score tries to tell you whether you need a camera. It folds cloud layers, humidity, air clarity, sun position and timing into one number you can act on in seconds, and its alerts mean you don’t have to remember to check.
The caveats: the forecasts sit behind a subscription, the horizon is about three days, the app has almost no track record yet, and a score is a prediction, not a promise. If you want to test the idea for free first, Sunsethue offers comparable 3-day forecasts. If you like the concept and the price, give Sunset Score a few weeks next to your own observations before committing to a year.
Sources
LifePixel: how to predict dramatic sunsets
This article includes content created with AI.