You can easily determine a file's share status and get a real-time notification using Acrobat Reader Mobile App.
Sharing & Reviewing Files
Sharing view-only files (free ) or sharing files for review (subscription) so that recipients can comment and markup files
A Share user interface and feature set that's similar across the desktop, web, and mobile devices
Easy controls for creating, participating in, and managing reviews
Real-time notifications of file views, changes, and participation as well as support for @mention tags
Share and Review tags
You can easily determine a file's share status since the app’s file lists indicate whether a file is simply Shared (view-only) or in Review.
For Android "Shared “by you” and “by others”
For iOS “Share and Review tabs”
Get Started with Review: -
Initiating a share or review: Sharing a file is easy, and you can track and manage the share from your mobile device, the desktop, and the web. You'll receive push notifications when reviewers participate.
Sharing files or links: Share options also include sharing a copy of a file or sharing a link to the file.
Reviewing files: The review feature allows you to add comments and annotations, edit comments, reply to comments, and receive notifications when there is activity on your thread comments. When you receive a review invitation email, click the link. Clicking on a link in 3rd party mobile apps automatically opens the Acrobat Reader in the review.
Working with comments
When you tap on a comment, the app shows the edit tools. From here you can:
Open the complete comment list.
Resolve comments (mark as read).
Edit the color of your own annotations.
Delete your own comments.
Edit your own comments.
Navigate through the comments.
This Android and iOS Guide will further help you to understand more about “Working and Navigating Comments”.
Managing reviews: -
While you will receive a notification when reviewers view and comment on your file, you can actively monitor and track reviews online or from the desktop.
Once you've shared a file, you can track and manage that share. From any file list, select a file and use the right-hand pane to perform an action.
To manage a review when a document is open, simply click the or simply tap
Send reviewers a real-time message. Messages are received as notifications
View the reviewer list and how many comments each reviewer has added