CREDO Detector

CREDO app for the detection of cosmic rays. You can help develop science!

CREDO Science · science.credo.mobiledetector

Not rated yet 10K+ downloads v1.3.5 7.8 MB Android 4.0+ PEGI 3 · Everyone

Download APK 7.8 MB All versions

Signature matches the Google Play version Details

At a glance

Latest version: v1.3.5 (36)
Updated: Aug 28, 2026 (1 month ago)
APK size: 7.8 MB
Requires: Android 4.0+ (API 14)
CPU support: Any (no native code)
Category: Education (app)
Listed since: Jun 12, 2021 (at least)
Permissions: 9 (4 sensitive)
Website: credo.science
Developer contact: [email protected]
Privacy: Developer's privacy policy

About this APK

CREDO Detector is an app by CREDO Science in the Education category, listed since at least June 2021. It has no native code, so it runs on any Android processor.

It asks for 9 permissions, 4 of them sensitive, including precise location, camera and approximate location. It asks for the same permissions as version 1.3.4.

What's new in v1.3.5

Fix: login error on modern devices

Description

From the listing uploaded by “appupdater”.

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 [email protected]. If you have an idea and desire to implement it, you are welcome to join us!

Version history

2 versions are listed, going back to v1.3.4.

v1.3.5 LATEST Aug 28, 2026 7.8 MB TRUSTED v1.3.4 Oct 30, 2024 7.8 MB TRUSTED

All 2 versions

Security & authenticity

Security rating: Trusted

Signing certificate

Signature matches the Google Play version Checked by the source store on Aug 28, 2026.
Certificate from Google Play App Signing Google keeps the signing key for the developer, so the certificate carries Google's name.
Same certificate as the other version checked

Store checks and file details

Developer signature verified Aug 28, 2026
Validated against Google Play Aug 28, 2026
Signed byCN=Android, OU=Android, O=Google Inc., L=Mountain View, ST=California, C=US
Signing certificate (SHA-1)3D:4B:17:C6:AE:E4:A2:1B:6F:BB:F8:36:10:78:DD:49:6C:DF:9C:2F
File MD5922bb237594089eed98ecc993d07dfb8
Uploaded by “appupdater” Gold tier · 117,810 followers · uploading since 2020

Scans and ratings come from the source store; the certificate comparisons are AAPKs's own, made from the files' published signatures (1 other version compared). AAPKs doesn't scan files itself — compare the MD5 and signer after downloading.

Permissions (9)

CREDO Detector requests 9 permissions, 4 of them sensitive.

Approximate location Sensitive android.permission.ACCESS_COARSE_LOCATION
Camera Sensitive android.permission.CAMERA
Display over other apps Sensitive android.permission.SYSTEM_ALERT_WINDOW
Precise location Sensitive android.permission.ACCESS_FINE_LOCATION
Full network access android.permission.INTERNET
Request ignore battery optimizations android.permission.REQUEST_IGNORE_BATTERY_OPTIMIZATIONS
Run at startup android.permission.RECEIVE_BOOT_COMPLETED
View Wi-Fi connections android.permission.ACCESS_WIFI_STATE
View network connections android.permission.ACCESS_NETWORK_STATE

Required hardware & features

Camera android.hardware.camera
Basic touch input android.hardware.faketouch
Location android.hardware.location
Portrait screen android.hardware.screen.portrait
Wi-Fi android.hardware.wifi

CREDO Detector APK: questions and answers

Can I install this APK over the version I already have?

Yes, if your installed copy is older. It is signed like the Google Play version, so Android installs it as an update and keeps your data.

Is the CREDO Detector APK safe?

No one can promise that a file is safe, but some things can be checked. The source store rates this file Trusted. Its signature matches the Google Play version. It is signed with the same certificate as the other version checked. After downloading, check that the file's MD5 is 922bb237594089eed98ecc993d07dfb8.