Amour EXPAND Medicine Man Releases Three a Light Home-Grow Weed App for Apple Devices Madeline St. Recommended For YouPowered by SailThru Colorado Cannabis Calendar for February Denver's First Pot Club Application Hearing Tomorrow Medicine Man Releases Three a Light Home-Grow Weed App for Apple Devices Madeline St. The first app to offer personal horticulture services specifically for weed launched on the Apple App Store at the end of January. Amour | February 13, 2018 | 1:00pm If you’re thinking about starting a cannabis grow in your house but aren’t an expert botanist, don’t worry: There’s now an app for that. And the most valuable piece of the app, he believes, is the interactive support it provides.