Free
- Recommended tilt and directionIncluded
- Live guidanceIncluded
- Planning by week, month, season, yearIncluded
- Saved profiles and places3
- Panel comparisonNot included
- Adjustment remindersNot included
- AdsDiscreet banner
Solar panel orientation
Solar Angle
Solar AngleThe right anglefor your panel.
Solar Angle calculates the recommended tilt and direction for your location and today's date, then guides you live with your phone's sensors. Made for portable panels, camping, vans and small off-grid setups.
- No account
- Works offline
- Optional location
For a given place and date
- Tilt
- 46°
- Direction
- South 180°
Three steps, a few seconds
Pick your place
Your location (optional), a city search or coordinates.
Read the recommended angle
Tilt and direction for today, the season or the year.
Align your panel
Live guidance tells you how far to raise or turn it.
What matters, nothing more
Live guidance
A tilt gauge, a compass and simple instructions. No ads during guidance.
Planning
The recommended angle over the week, month, season or year, and the next useful adjustment.
Profiles
Van, cabin, portable panel: save your places and find them again in one tap.
Reminders
A reminder at the right time to readjust your panels, with Premium.
Made for the field
- Sensors under control
- A reliability indicator and compass calibration, so you know when to trust the guidance.
- Manual mode
- If the compass is disturbed or missing, set the direction yourself.
- Magnetic declination
- The direction accounts for the gap between magnetic north and true north.
- Indicative recommendations
- Results do not replace an installation study and guarantee no yield: shade, weather and compass accuracy matter. Solar Angle gives you a clear, honest setting, not a promise.
Your data stays with you
No account, no server: calculations happen on your phone.
Read the privacy policyOptional location
Read only when you ask for it, to compute the sun. It is never sent to Clearforge Studio.
Place search by Android's service
A city name is looked up by Android's geocoding service, not by our servers. Offline, enter coordinates.
Discreet advertising
A small banner in the free version, never during guidance or in settings. It has no access to your location or your profiles.
No analytics tool
No usage tracking, no third-party crash reporting tool.
Free, and Premium as a one-time purchase
Premium
- Recommended tilt and directionIncluded
- Live guidanceIncluded
- Planning by week, month, season, yearIncluded
- Saved profiles and placesUnlimited
- Panel comparisonIncluded
- Adjustment remindersIncluded
- AdsNone
Premium: a single, lifetime payment, no subscription, restorable. An optional support also exists, in three amounts: it removes ads and unlocks nothing else.
Solar Angle, the app to aim and tilt a solar panel
Solar Angle (Solar Angle: Panel Tilt) is an Android app that calculates the recommended tilt and direction of a solar panel for a place and a date, then guides the adjustment live with your phone's compass and accelerometer. It is made for portable panels, camping, vans, cabins and small off-grid setups.
You pick your place by optional location, city search or coordinates, then read the recommended angle for today, the season or the year. Live guidance tells you how far to raise or turn the panel, with a sensor reliability indicator, compass calibration and a manual mode. Planning shows the angle over the week, month, season or year, and with Premium you can save profiles, compare them and set reminders.
Calculations work offline and there is no account or server: places and profiles stay on the phone. The free version shows a small banner, never during guidance; Premium, a one-time lifetime payment, removes it and adds unlimited profiles, comparison and reminders. Recommendations are indicative and do not replace an installation study.
Solar Angle: frequently asked questions
What is the best angle for a solar panel?
It depends on latitude, the season and how often you are willing to adjust the panel. Solar Angle calculates the recommended tilt and direction for your location and today's date, with variants by season or year.
How do I aim a portable solar panel?
Pick your place, read the recommended angle, then start live guidance: lay the phone flat on the panel and follow the instructions to raise or turn it. Stay away from metal masses, which disturb the compass.
Does Solar Angle work offline?
Yes for calculations and guidance. Only looking up a place by name needs a connection; offline, enter coordinates.
Does the app need my location?
No, it is optional. You can enter a city or coordinates. If you allow it, the location is only read when you ask, is used to compute the sun and is never sent to Clearforge Studio.
What if the compass is inaccurate?
A reliability indicator tells you when sensors are disturbed. Calibrate the compass with a figure-eight motion, move away from metal objects, or switch to manual mode to set the direction yourself.
Are the results guaranteed?
No. They are indicative recommendations: shade, weather and compass accuracy affect the result. The app does not replace an installation study and does not guarantee a yield.
Is the app free?
Yes, with a small banner outside guidance and 3 saved profiles. A one-time Premium payment removes ads and adds unlimited profiles, panel comparison and adjustment reminders. There is no subscription.
Where can I download Solar Angle?
On Google Play: tap the Google Play button on this page. The app is available in English and French.
