Share your astronomy images in stunning high‑res—Join a global astro community today.
Download the Picastro app – Try the free Curiosity plan
...It’s like insta but only for astro, with amazing people from beginner to expert level sharing their high-resolution astronomy images. NO bots, spam or fake AI images pretending to be real!
Skip the intimidation of noisy forums, bot ridden social media and overly complex web web sites. Picastro’s simple UI and friendly global community — sharing images of their first star trails to complex nebulae — makes it easy to join, share, and learn.
Share
Upload high resolution astrophotography images with NO compression (Up to 120 MB or 72 Mega Pixel)
Connect
Thrive with a talented, enthusiastic, and like-minded astro community from newbie to expert.
Enjoy
A safe, ad‑free social media app for real astrophotographers—no fake AI, bot or spam accounts
It's amazing to finally have a mobile app that doesn't compress the heck of your images. I'm so happy to be able to view images in high-resolution format.
This app doesn't allow bullying, etc, in this hobby. We just pick up each other, and this app supports that.
Nici P – Scotland
This app is a complete game-changer for the space community!
No bots, no ads, no compression and no algorithm!!
Just passionate people sharing beautiful space images and supporting each other.
Gregory M – Canada
Astrophotography has a new home. Very early days using the app but I’m mighty impressed so far. Even my fumbling attempt at capturing the heavens looks sharp and sumptuous.
Literally a breath of fresh air for astrophotographers of all abilities.
Martin – Germany
Whether you’re just starting out or have years of experience in the hobby, Picastro is designed to empower the astro community and inspire a lifelong passion for the stars. And your images are protected, so no one can ‘borrow’ them!
Empowering astrophotographers across the world
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This astronomy app has been one of the best astro projects I have undertaken so far and I have so many people to thank, but this has been such a learning experience for me in so many ways!
My wife and daughter of course for sticking by me on the late and sleepless nights. Thank you.
My development team who's unwavering support has allowed me to finally bring this app to life.
The beta testers and the cyber experts who have also helped me get it to this stage. Still lots to do, but thank you.
I would also like to name a few people who have stepped up to help me bug test, UI and UX test and in no particular order—
Vlad, Hannah, Nici, Andy C, Drew, Daniel M and Daniel D, Vicky, Simone and the countless other beta testers.
And one person who wants to remain in the shadows, but without which the app would absolutely not be where it is, T, thank you so much.
Here's to the roadmap for the future and thank you everyone.
TOP COLLABORATIONS
It's amazing to finally have a mobile app that doesn't compress the heck of your images. I'm so happy to be able to view images in high-resolution format.
This app doesn't allow bullying, etc, in this hobby. We just pick up each other, and this app supports that.
Nici Poersche
This app is a complete game-changer for the space community!
No bots, no ads, no compression and no algorithm!!
Just passionate people sharing beautiful space images and supporting each other.
Gregory Murray
Astrophotography has a new home. Very early days using the app but I’m mighty impressed so far. Even my fumbling attempt at capturing the heavens looks sharp and sumptuous.
Literally a breath of fresh air for astrophotographers of all abilities.
Martin
I love this app! It can be so frustrating spending time and money producing Astro images only for them to be ruined by the compression on other social media apps. This app keeps them looking exactly as they should. Give it a go and you’ll see the quality
Xenogazza
Not one for reviews but this app certainly deserves credit. Its super clean easy to use and view all the awesome images everyone is getting and it’s great to see what there equipment they have used and help others learn a thing or two!! So from my experience so far it definitely deserves 5 stars.
Adam Farnell
If you're into astrophotography, then you'll love this app. It's got a great community of amateur astrophotographers and it's nice to be on a platform where your posts are not simply lost to the wind being subject to a mysterious 'algorithm'. My favourite aspect is that your uploaded images aren't compressed to hell, all the details are preserved so you can really zoom in and take a look at all the details.
Dan Renwick
Picastro is wonderful. It has been a great joy to join this community of Astrophotographers! Being able to share high resolution images and discuss the aspects of this hobby with people from around the world is fantastic! The developers listen to members to improve the app and make the improvements! If you are interested in Astrophotography, Picastro is the app for you!
Jason Young
Fantastic app dedicated to astrophotographers. The high resolution images are great, I highly recommend!
Tommy Lease
Picastro App is a great place to meet like minded Astronomers and Astrophotographers, no silly algorithm to try and figure out and much better quality image uploads with little compression. Great app
Richar Nellyer
CONTACT US
Picastro is unlike any other social media for astro platform out there. That’s why it’s been called “a breath of fresh air” and “a game-changer for astrophotographers” by our amazing PicastroNerds.
Image by our founder — Tom McCrorie, Azrtronoob
These values guide every decision we make because they matter to us and you. And we’re committed to continually improving Picastro to give you the best experience possible.
Collaboration and connection are at the centre of everything Picastro does – and the reason the app exists. Before any app development started, we asked the community what was important to them. From this research, we’ve focused the app on these 3 core principles:
1
Creating a safe, supportive space without the pressures of social media
Many of my fellow astro nerds felt the pressure and negative impact sharing astrophotos on social media had on them.
That’s why Picastro is focused on giving praise and supporting others – not likes or follows.
2
Sharing beautiful deep sky images in high resolution without distractions
Traditional social media platforms frustratingly compress images you’ve spent hours capturing.
At Picastro, we don’t compromise on quality so you can share and view stunning astrophotography images in the best light.
3
Celebrating all astrophotographers, regardless of experience
Picastro is a space where it doesn’t matter your experience level – everyone can share knowledge and geek out about equipment and images.
Breaking down barriers and encouraging learning from others is a vital aspect of why we created Picastro the way we did.
4
Image protection as standard
Of high importance was image protection. So we have removed image screen sharing and screen capturing to make sure your images are fully protected, meander geo one can take them and pretend the iamges begin to them.
Testimonial
Not your classic social network.
Picastro is amazing new app where I can not only meet and talk to my astronerds, share experience and advices, but most of all - I can share my astrophotos in full quality and depth of details.
It's a gallery with beautiful and intuitive interface, I love I can list my equipment and add it to picture I post, making a full image card where all the parameters of photo are clearly seen.
Works wonderful, without bots, ads, fake accounts... where have this app been last four years??
Vladimir — Slovakia