CREDO Detector

2.9
311 reviews
10K+
Downloads
Content rating
Rated for 3+
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About this app

What is CREDO Science?
Cosmic-Ray Extremely Distributed Observatory (CREDO) — Citizen Science collaborative project which enables a strategy for a global analysis of cosmic-ray data to reach the sensitivity to extremely extended cosmic-ray phenomena, we call them Cosmic-Ray Ensembles (CRE), invisible for individual detectors or observatories. So far, the cosmic-ray research has been oriented on detecting single air showers only, while the search for CRE is a scientific terra incognita. We aim at exploring this uncharted realm. Observation of CRE would have an impact on cosmology, fundamental particle interactions and ultra-high energy astrophysics.

A large role in the CREDO project is the CREDO Detector mobile app, which uses the camera's matrix to register cosmic-ray particles. By creating a network of users around the globe, we get a cosmic-ray telescope the size of the whole Earth. All application code is public and available on our GitHub.

CREDO is an open Citizen Science collaborative project and all collected data are public. In the project participate schools and institutions from 5 continents. If you think your school should join the program, contact us at contact@credo.science. If you have an idea and desire to implement it, you are welcome to join us!
Updated on
Mar 28, 2024

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
No data shared with third parties
Learn more about how developers declare sharing
This app may collect these data types
Location, Personal info, and Device or other IDs
Data is encrypted in transit
You can request that data be deleted

Ratings and reviews

2.8
301 reviews
Zack Schindler
December 2, 2023
Does not work. I created an account and got an email confirmation. Launched the app and get the message "permission are needs". Clicked outside of the message and hit login and it goes back to the message.
2 people found this review helpful
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Narek Haytyan
December 21, 2023
The app doesn't work, I can't pass the login/registration screen because of infinite "Permission granted" notifications which I believe are showing up because of some infinite loop that freezes the main screen and the buttons there are not responding to touches. I managed to tap the registration button only by accident and now after managing to login successfully I still see the initial screen that is unresponsive and the app crashes after some time.
2 people found this review helpful
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Michael Elliott
June 22, 2021
After initial startup and setup, it appeared to run normally. Tapped the button to blank screen, and after that, the app will now never run, only stays in "paused -cover camera" mode (both cameras were covered with five layers of black electrical tape in attempts to fix this, but initially was using front camera with a single layer). Uninstalled and reinstalled app, restarted device, etc., in various combinations, but app would no longer ever go past the "paused - cover camera" state. Eventually it wouldn't even let me select a camera, and every time that settings menu selection was touched, it would restart the app back to it's main screen. Gave up and uninstalled app. :-( Also, when this app is running, at all, nothing else on the phone can be used because it always goes "on top" of everything else. If you turn that off, app will no longer operate, and simply keeps asking for the permission over and over until you either kill the app or you give it that permission. Not a very useful app if you can't just let it sit there and do it's thing in the background and still use your device. :( Regarding charging, even though the app wouldn't even "run" according to it's status screen, I could still see the charge level drop by a percent every few minutes, even though the device was plugged in to it's charger. I can run several apps normally on the device, including the camera recording video, and it will *increase* charge state by a percent or two every few minutes while doing so...but not with this app installed. Device is a Samsung J3 Orbit SM367VL running the built-in Android 8.0.0.
1 person found this review helpful
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CREDO Science
June 23, 2021
Battery consumption is caused by using the camera when the application is on - even when the message "cover camera" is displayed (it checks if you have covered camera).If you see "cover camera" message all the time then even though you have covered the camera well it is worth to decrease used camera resolution (in settings eg 1920x1080 to 1024x960)

What's new

Fix GPS registration of detection