Picastro vs Mass Transit

Picastro is the ultimate mobile platform for sharing your high-resolution astrophotography and space images — designed by an astronomer, built for the astronomy community. Whether you're a beginner capturing your first star trail or a seasoned astrophotographer imaging distant nebulae, Picastro brings together a passionate, ad-free, and bot-free community that shares your love for the cosmos. Why Picastro?
Hi-Res Images, No Compromises – Share stunning celestial captures in full detail
• Positive, Curated Community – Engage with real people, not algorithms
• Beginner & Expert Friendly – Grow your skills and get inspired by others Exclusive Features:
StarCard – Showcase your gear and style
• StarCamps – Connect locally or globally with others under dark skies
• Progress Badges – Earn NASA-style icons as you explore and grow Unlike general social platforms, Picastro is 100% focused on space. There are no ads, fake accounts, or spam — just pure cosmic content. Join thousands of fellow stargazers and photographers around the world who are already sharing their journey through the universe. Download Picastro now and become part of the astronomy community that's changing the way we share the night sky.

Mass Transit helps you share your own public Mastodon posts elsewhere. Sign in to your Mastodon account to browse your original posts, then choose how to share each one. • Browse original posts from your connected account • See post text, hashtags, images, dates and available image descriptions • Post to Bluesky after connecting your account • Share through the iOS share sheet • Copy a link to the original post Replies and boosts are skipped. Mass Transit is an independent app; Mastodon and Bluesky are separate services.