Intuitive yet powerful, Lumos accurately predicts the position of the sun and moon at any time, on any day, in any place. Whether you’re planning a photo shoot, a wedding, or a solar panel installation, tracking the sun and moon has never been easier!
Lumos is divided into six main modules:
• The augmented reality view harnesses the power of AR to visually project past, present, or future sun and moon positions (and moon phases!) onto your surroundings, letting you perfectly visualize your plans.
• The map view overlays the sun and moon positions for a given time and location onto a map of that location, letting you make plans from afar.
• The Street View mode works like the AR view, but it takes advantage of Google Street View to allow you to envision sun and moon positions for remote locations (requires Lumos Pro).
• The calendar view displays a simple list of rise/set times and moon phases throughout the year, letting you see the big picture at a glance. Tap a row to see the detailed ephemeris for that day.
• The notifications module lets you sign up to receive notifications for significant solar and lunar events, including: astronomical, nautical, and civil dawn/dusk, blue hour, golden hour, sunrise/set, solar noon, moon rise/set, lunar transit, and lunar perigee/apogee (requires Lumos Pro).
• The shadow length view calculates the exact length of the shadow an object will cast on a given time and day, letting you see the result both visually and numerically. You can also calculate the height of an object if you know the length of its shadow.
With an affordable one-time purchase of Lumos Pro, you can also:
• Search for a location by name or manually enter coordinates
• Save locations for later reference or offline use*
• Take notes on a saved location and have them readily available the next time you view it
*The map view and Street View do not currently support offline use
NOTE: The sun and moon positions calculated by Lumos are accurate to within a small fraction of a degree. However, as with any augmented-reality app, the accuracy of the projection is dependent on the underlying hardware. If you are seeing inaccurate positions, please calibrate your device's compass and ensure that you are not near any sources of electromagnetic interference (e.g. microwaves, computers, car engines, high voltage lines). Phone cases containing batteries are known to cause compass interference. You can also use the visual calibration tool to align the projection with sun’s current position. Please feel free to contact us if you continue to have issues.
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This is a great app, it works perfectly after a little calibration, for me. The display of the sun arc is perfect for understanding solar energy availability for your roof and side of your house throughout the year! Prior to finding this app, I was trying to check the sun position for every season from a window on the side of the house and by watching the roof and taking pictures.I would like to see a few additions for the pro version, 1.) let the notifications also be setup based on current weather conditions - I don’t need to know it’s perfect sun for photography if it’s an overcast day. 2.) on the shade calculator, provide a way to setup trees around your house and enter their height, then show on the street view how that appears at any season with the sun at its arc during that time, for example I have a lot of trees blocking the back 1/2 of my roof and part of the sides of my house, but it will be real hard to calculate how much sun energy I can get at those locations if the trees are shading those areas and it’s hard to calculate or see that in Lumos Pro now, I would also need to enter some type of setup on the height of the house I think as well as the shade calculation must include the higher location of the roof and sides of the house based on the height of the house too. 3.) provide a way to display more of the arc of the suns path where it actually is, and then a lower point indicating the time at that position as I have to keep raising and lowering my phone to see the times on the arc as they are above where I can see them in AR. 4.) calculate actual sun energy reference points that will be available at 4 seasonal points of the year and based on a square footage of solar panels, so in: equinox, and 2 solstice points, and maybe one total for the whole year (average expected solar energy that can be generated with xx number of panels, which can be saved in setup).
The eclipse is coming and this app is awesome
Joshua of Oregon
The eclipse will happen here in Portland Oregon in a few days… And I was busy trying to figure out where the Sunil be in the sky so I can find a proper viewing position… Unfortunately it was cloudy today and I wasn't able to locate the sun. I figured there had to be a son tracker app in the App Store so I went searching for one that was free… Of all the free apps for tracking the Sun and Moon this one hands-down is the best. It's virtual reality option is especially handy. You can type in a time and a date and it will show you exactly where the sun will be located at that time. Great job guys keep up the great work. Joshua.
Worth the money for pro
Rafy709
Great app for any photographer that uses sunlight. (A good majority) So helpful when imagining scenes and camera positions in a remote location for a future date. My only complaint is that the app doesn’t think I have compass calibration on, so augmented reality does not work. I checked my settings, and I do have compass calibration on. Devs, I am running on iPhone 6 at iOS 12.2. Please see if there is another function call for my hardware/iOS version that will work. Thanks.EDIT: ignore my issue. I opened it again after several uses and the AR started working and showing sun path. Updated to 5 stars
Great app for knowing where the sun will be in the sky!
Matt the M.
I’ve found it super useful for knowing when the sun will shine in through a particular window in our house, what times over the year the sun will shine where we want to put outdoor solar lights up, where the sun will be in the sky when I plan to take an important outdoor photo, etc. just super useful and has a very intuitive interface.
- Minor bug fixes and compatibility updates
- Updated libraries and SDKs.
Version 2.4.2
The developer, Luminous Labs, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
Purchases
Usage Data
Diagnostics
Privacy practices may vary, for example, based on the features you use or your age. Learn More
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
Seller
Luminous Labs LLC
Size
52.5 MB
Category
Photo & Video
Compatibility
Requires iOS 18.6 or later.
iPhone Requires iOS 18.6 or later.
Location
This app may use your location even when it isn’t open, which can decrease device battery life.
