Cosmic Ray Detector SORAMAME3.97 - App Store

Discover the invisible universe right in your pocket!

SORAMAME is an innovative citizen science app that transforms your smartphone into a real cosmic ray detector. Every second, invisible high-energy particles from deep space are raining down on Earth. By using your device's camera sensor, SORAMAME allows you to capture and record these microscopic cosmic events.

Whether you are a science enthusiast, a student, or just curious about the universe, you can easily contribute to global space research. Simply cover your rear camera to block out all light, press play, and let your smartphone catch the invisible hits from the cosmos!

## How It Works
Your smartphone's CMOS image sensor is highly sensitive not just to visible light, but also to high-energy particles like muons. When the camera is completely shielded from light, the sensor acts as a particle detector. When a cosmic ray strikes the sensor, it leaves a faint but detectable signal-which SORAMAME captures and analyzes in real-time.

## Key Features

Real-Time Detection: Watch your screen as cosmic ray hits are detected and recorded instantly.

Global Observation Map: See where cosmic rays are being detected around the world! Your data contributes to a global map shared by other citizen scientists.

Offline Mode: Exploring off the grid? No problem. SORAMAME saves your detection data (images and coordinates) locally when you are offline and automatically uploads it to the central server once your network connection is restored.

Privacy-Friendly: Your location data is slightly blurred on the public map to ensure your privacy remains fully protected.

Easy Setup: No extra hardware required. Just a smartphone and a dark environment (or a simple piece of black tape to cover the lens).

## Important Note for Accurate Measurement
To detect cosmic rays accurately, the camera sensor must be in complete darkness. Please shield the rear camera from light entirely. The app includes a light-leak detection feature and will alert you (ERROR: Please shield the rear camera from light) if the environment is too bright. For best results, we recommend leaving the app running for at least 3 hours to stabilize the background noise learning.

Join the SORAMAME project today, and let's map the cosmic rays of our universe together!

https://soramame.n.kanagawa-u.ac.jp/en/

Version History We have fixed the Function for uploading data stored in device when network has recovered. 3.97 Aug 19 New Feature: Offline Mode!
Take your cosmic ray detection off the grid! We've added a highly requested Offline Mode, allowing you to continue your observations even when you don't have an internet connection. Whether you are hiking in the mountains, flying on an airplane, or exploring underground, SORAMAME will now securely save your detection data and images locally on your device. Once you're back online, the app will gently prompt you to upload your saved data to our global server. Keep exploring the universe, wherever you are! 3.96 Apr 30 New Feature: Offline Mode!
Take your cosmic ray detection off the grid! We've added a highly requested Offline Mode, allowing you to continue your observations even when you don't have an internet connection. Whether you are hiking in the mountains, flying on an airplane, or exploring underground, SORAMAME will now securely save your detection data and images locally on your device. Once you're back online, the app will gently prompt you to upload your saved data to our global server. Keep exploring the universe, wherever you are! 3.95 Apr 26 We added "Reset Screen" button and fixed few bugs. 3.94 06/24/2025 Fixed problem with threshold level adjustments. 3.93 06/12/2025 Fixed problem with threshold level adjustments. 3.92 06/01/2025 Fixed problem with threshold level adjustment taking too long on some devices during initial use. 3.91 05/30/2025 Multiple bugs fixed and FAQ button added. 3.9 05/16/2025 We fixed few bugs and added link to FAQ page. 3.8 05/12/2025 We fixed few bugs and added link to FAQ page. 3.7 05/10/2025 When observing without an internet connection, the app will store the images and data locally. Once the internet is available, the stored data will be sent. 3.6 08/22/2024 Added more information on display about detected signal. 3.5 08/08/2024 The app offers different visuals depending on the location of the detection, making it a fun and engaging experience. Join us in the excitement of cosmic ray detection with a global community. 3.4 07/18/2024 By having fun observing cosmic rays in the classroom with your friends, you can enjoy it not only as a tool but also as a new communication tool. Please use it at science events and science museums. 3.3 07/13/2024 When a cosmic ray candidate is detected not just by your device but also by someone else's, you'll now discover how far away it was found. A charming alien will reveal the distance, adding a delightful touch to your cosmic journey. If your device catches cosmic ray or radiation candidates, watch out for a UFO making a surprise appearance! And if a candidate is detected more than 1,000km away, a new planet will appear in the sky! Dive into the thrilling world of cosmic ray observation with SORAMAME. Plus, we've squashed a few bugs to make your experience even better. 3.2 07/07/2024 When a cosmic ray candidate is detected not only by your own device, but also by someone else, you can now see how far away it was detected. A cute alien tells you the distance. If your device catch cosmic ray or radiation candidates, UFO will appear. Please enjoy the fun cosmic ray observation. Few bugs has been fixed also. 3.1 06/27/2024 When a cosmic ray candidate is detected not only by your own device, but also by someone else, you can now see how far away it was detected. A cute alien tells you the distance. A UFO will appear if your device detects it. Please enjoy the fun cosmic ray observation. 3.0 06/26/2024 We have adapted to observations in locations with high detection frequency, such as when altitude is increased. 2.4 05/14/2024 Added link to data listing page. 2.3 04/14/2024 Fixed a small bug related to obtaining location information. 2.2 01/18/2024 WeI added a counter so that users can see that the app is working fine.We also deleted some files to make the app lighter. 2.1 01/12/2024 We have expanded compatibility to more OS versions." 2.0 01/08/2024 Fixed few bugs. 1.16 08/28/2023 Fixed few bugs. 1.15 08/01/2023 Fixed few bugs. 1.14 07/21/2023