The best alternatives to Helio are Alpenglow, Alpenglow, and SunTimes. If these 3 options don't work for you, we've listed a few more alternatives below.
What do you think of Helio?
AssemblyAI— Speech-to-Text API with superhuman accuracy
We've all missed a great Sunrise, Sunset, or Golden Hour, missing out on those magical hours of gorgeous lighting. Alpenglow tries to make that a thing of the past with reminders and forecasts.
A simple and beautiful app to see the time of first light, sunrise, sunset and last light all around the world. Adjust the location yourself or use your phone's location. A weekly calendar is included to view the future or the past!