MedusApp app icon

MedusApp

Jellyfish sightings and stings report system by citizen science

Eduardo Blasco & Ramón Palacios · com.medusapp

Not rated yet 100K+ downloads v7.0.3 12.5 MB Android 7.0+ PEGI 3 · Everyone

  • Signature matches the Google Play version Details

At a glance

Latest version
v7.0.3 (700030)
Updated
Oct 3, 2026 (5 days ago)
APK size
12.5 MB
Requires
Android 7.0+ (API 24)
CPU support
Any (no native code)
Category
Tools (app)
Listed since
Apr 18, 2021 (at least)
Permissions
4 (2 sensitive)
Website
medusapp.net
Developer contact
[email protected]
Privacy
Developer's privacy policy

About this APK

MedusApp is an app by Eduardo Blasco & Ramón Palacios in the Tools category, listed since at least April 2021. It has no native code, so it runs on any Android processor.

Since version 5.2.7, the APK grew from 8 MB to 12.5 MB and the minimum Android version rose from 4.4 to 7.0. It asks for 4 permissions, 2 of them sensitive: precise location and approximate location. Compared with version 7.0.2, it drops 1 permission: “Read shared storage”.

What's new in v7.0.3

New vector maps thanks to Carto.

Description

From the listing uploaded by “appupdater”.

Obtaining data on jellyfish sightings and stings is crucial for various scientific research projects. And having a small tool that anyone can install on their mobile phone, which simplifies the task of reporting jellyfish sightings or their effects on people, is exactly what was needed to provide science with this data. Furthermore, the information flows both ways, as the data provided by the public travels back to science to alert and better understand the movements of each species over time and across the map. Simply take a photo of the jellyfish with Medusapp, and when you send it, you'll also be sending the GPS coordinates to create a real-time map of the locations where these marine animals are sighted. If you also know the species, even better. But if not, don't worry, AI and a committee of experts will take care of classifying it. This app can also be used to report other types of marine wildlife sightings, as well as the effects of jellyfish stings. In addition, it includes a short first aid guide for jellyfish stings and another for identifying different jellyfish species. Developed by Ramón Palacios and Eduardo Blasco as a contribution to citizen science. Scientific development and management of scientific and medical data by Dr. Cesar Bordehore and Dr. Eva S. Fonfría, Multidisciplinary Institute for Environmental Studies “Ramon Margalef”, University of Alicante. Dr. Victoria del Pozo and Dr. Mar Fernández Nieto, CIBER Respiratory Diseases Network (CIBERES), Immunoallergy Laboratory, Department of Immunology, Jiménez Díaz Foundation Health Research Institute (IIS-FJD). The information on jellyfish and first aid comes from the LIFE Cubomed project (www.cubomed.eu), in which Dr. Bordehore participates. Photos of jellyfish sightings that are validated will be made public on the map, while photos of stings will not. The developers cannot be held responsible for the submissions and photos reported by app users. For any issues, please contact [email protected]

Version history

7 versions are listed, going back to v5.2.7. Since v5.6.6 it requires Android 7.0+.

All 7 versions

Security & authenticity

Security rating: Trusted

Signing certificate

  • Signature matches the Google Play version Checked by the source store on Oct 3, 2026.
  • Certificate issued to “UPV” This is the certificate of the Google Play version.
  • Same certificate as the 2 other versions checked

Store checks and file details

  • Developer signature verified Oct 3, 2026
  • Validated against Google Play Oct 3, 2026
  • Signed byCN=Ramon Palacios, OU=UPV, O=UPV, L=Valencia, ST=Valencia, C=ES
  • Signing certificate (SHA-1)EF:7D:AB:D7:C9:81:5D:51:6E:E8:E9:0F:85:46:38:A2:45:C1:74:D6
  • File MD5be21ad400072c9f80175e3c6588c5885
  • 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 (2 other versions compared). AAPKs doesn't scan files itself — compare the MD5 and signer after downloading.

Permissions (4)

MedusApp requests 4 permissions, 2 of them sensitive.

Required hardware & features

MedusApp APK: questions and answers

Is there a version of MedusApp for older Android phones?

The current version needs Android 7.0 or later. Version 5.6.1 is the newest listed build that installs on Android 5.0 and later. Get version 5.6.1 · All versions

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 MedusApp 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 2 other versions checked. After downloading, check that the file's MD5 is be21ad400072c9f80175e3c6588c5885.

Tags

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