Shellback

Name: Shellback
Rating: 2.8823528 (129 reviews)
Author: Sea Warrior Mobile Apps

By: Sea Warrior Mobile Apps App

Official Navy leadership and management information in an easy-to-use app!

Overview

Google Play Store

Downloads

22,938 ▲ 18

Data as of 2026-10-09

Rating:

2.88

(129)

Version:

4.0.0.1

Last updated: 2026-09-29

Ranking

#417,929 ▼ 2,555

Overall

Features & Capabilities

The Shellback app — formerly eDivo — is a free mobile resource designed specifically for US Naval Surface Force (SURFOR) personnel. It enables Sailors to download and access key leadership and management information offline, ensuring critical resources are always at hand even without internet connectivity. By uniting vital documents and manuals in one place, the app supports training, medical readiness, operations, personnel management, and safety efforts.

Named after the naval tradition marking experienced Sailors who have crossed the Equator, Shellback empowers users with updated manuals like the Correspondence and Training Readiness Manuals, Medical Department guidelines, operational procedures, personnel policies, safety reports, and navigation rules quizzes. Updated annually, this app streamlines essential SURFOR knowledge, enhancing mission readiness and leadership capabilities anywhere, anytime.

User Growth & Download Statistics

App Education Navigation & Mapping

By:

Sea Warrior Mobile Apps

Downloads:

22,938 18

Rating:

2.88

(129)

Version:

4.0.0.1 Last updated: 2026-09-29

Version code:

213827

Creation date:

2015-03-06

Publisher country:

Permissions:

android.permission.MEDIA_CONTENT_CONTROL High risk
android.permission.READ_EXTERNAL_STORAGE High risk
android.permission.WRITE_EXTERNAL_STORAGE High risk
android.permission.FOREGROUND_SERVICE Low risk
android.permission.FOREGROUND_SERVICE_MEDIA_PLAYBACK Low risk
android.permission.INTERNET Low risk
android.permission.ACCESS_NETWORK_STATE Safe
com.tracen.doma.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION

Size:

82.07MB

Email:

MA*****@katmaicorp.com

URLs:

Website ,Privacy policy

Full description:

Source:

Google Play Store

Data ingested on:

2026-10-09

Compare stats and ranking:

Contact the developer

Chrome-Stats does not own this Android app. Please use these information below to contact the Android app developer.

Developed by:: Sea Warrior Mobile Apps
Google Play Store: https://play.google.com/store/apps/details?id=com.tracen.doma
Email:: MA*****@katmaicorp.com
Website:: https://navymil.zendesk.com/hc/en-us/requests/new

User Reviews

Users find Shellback useful for quick naval references but criticize it for slow loading and frequent failures to get past initial disclaimers. The Rules of the Road quiz is widely regarded as unhelpful since it lacks correct answers and feedback. Many complain that references and links are outdated or broken, especially after the update from eDivo to Shellback, which removed previously available content and degraded the app's usability. Overall, it is considered less helpful than its predecessor and other naval apps for study and guidance.

Pros

Provides quick access to naval publications and instructions.
Handy and useful for naval officers for fast reference.
Good for looking up certain pub references easily.

Cons

Very slow to load, often getting stuck at the loading or disclaimer stage (e.g., at 50%).
Rules of the Road (ROR) quiz is ineffective: it no longer shows correct answers or useful feedback, making it not helpful for study.
References and links in the app are outdated and broken, often not reflecting updated naval instructions or websites.
The update from eDivo to Shellback degraded functionality, removing useful content and causing frequent crashes or inability to open the app.

Recent reviews

Way too slow to load

S.***** 2023-08-14

Broken, can't even load in, typical navy software. eDivo wasn't even that useful, just a bunch of links masquerading as an app inside of a half-useful RoR test generator. Does anyone actually talk to divos when they make these apps or have them involved in the process? Lmao