SolCalc - Solar Calculator
Photo & VideoProductivity

SolCalc - Solar Calculator

Robert Ehrhardt · released 15 Apr 2026 · Open in App Store ↗

Revenue 30d not estimated
Downloads 30d not estimated
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Description

SolCalc is a solar calculator that helps giving information about sun and moon.

This includes information about sunrise, sunset together with data of the blue hour, golden hour and twilight times (civil, nautical and astronomical). Furthermore you can calculate information about moonrise, moonset and moon phases (calculated data are approximations of +/- 1 day accuracy).

You also can calculate and visualize the shadow length that an object will create.

In this app you can view data for multiple locations. These can be defined manually or automatically by getting your GPS location. Additionally you have the opportunity to manually set timezones of the locations, which can be helpful if you are planning trips to locations with another timezone than the one, where you currently are in.

Core features at a glance

Calculation of sunrise, sunset and solar noon

Calculation of moonrise and moonset + moonphase

Calculation of civil blue hour

Calculation of twilight times (civil, nautical and astronomical)

Calculation of golden hour

Visualization of the azimuth-data of sunrise, sunset, moonrise and moonset

Visualization of the azimuth-data of sun and moon for specific time

Calculation and visualization of the an object shadow (e.g. helpful for planning photovoltaics/pv alignment)

Visualization of sun heigth over a day (zenith)

definition of multiple locations, including current position (based on GPS)

forecast

Pro features

no limit in selecting a date for calculation (max. +-7 days in free version)

full monthly forecast

export of forecast-data to Excel-tables

Note: the calculated values are approximations to plan your photography trips. Additionally it depends on weather situation, how good or if the blue or golden hour is visible.

TERMS OF SERVICE

https://passwordsafe.app/solcalc/policies/terms.html

End User License Agreement (EULA):

https://www.apple.com/legal/internet-services/itunes/dev/stdeula/