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Android Apps > Puzzle > Opal Stack
Opal Stack icon

Opal Stack

by QUIZ GAME · Puzzle · Free
On Google Play since January 2023 · Data updated 2026-10-14

Opal Stack is made and published by QUIZ GAME. AppBrain is an independent app data site and isn't affiliated with QUIZ GAME. The app name, icon, screenshots and description belong to QUIZ GAME and are shown as published on Google Play.

AppBrain's verdict

Niche
Installs
150
Last updated
January 2, 2023
Ads
Contains ads
Size
15.9 MB

Opal Stack is a niche app, with 150 installs. It doesn't have enough ratings yet to judge what users think.

Download on Google Play

User feedback

Ratings and reviews on Google Play

Comments on Opal Stack for Android

We don't have enough comments to show example comments. Please check back later.

Store listing

By QUIZ GAME, from Google Play

“Manage your personal book collection and track reading progress manually.”

Opal Stack Screenshot 1 of 5
Opal Stack Screenshot 2 of 5
Opal Stack Screenshot 3 of 5
Opal Stack Screenshot 4 of 5
Opal Stack Screenshot 5 of 5
Screenshots by QUIZ GAME, from the Google Play listing
Description by QUIZ GAME Written by the developer, not by AppBrain. Click to read.
Opal Stack is a manual digital bookshelf for tracking a personal book collection. This application requires manual data entry and does not include automated book scanning or cloud syncing.

* Bookshelf Management: Create entries for books and assign statuses including Waitlist, Reading, or Done.
* Page Tracking: Manual entry of current page number against total pages.
* Progress Calculation: Visual percentage display based on entered page numbers.
* Quote Collection: Manual storage of text entries for quotes or notes per book.
* Status Dashboard: Interface showing counts of books currently in progress and finished.
* Collection Filtering: View books by assigned status or browse the entire list.
* Local Data: All information is stored on the device with no external data transmission.
* Manual Controls: Toggle notification preferences and manage local history through settings.
Download on Google Play

Safety and technology

Found in the app by AppBrain
Ads
Contains ads
Price
Free
Libraries
?
App size
15.9 MB
Content rating
Everyone

Technologies used by Opal Stack

1 permissions
Subscribe to see full permission and library details

Releases

Updates seen on Google Play
Version
20.20.20
Launched
January 2023
  • Mar 26, 2024Installs50+ installs
  • Jan 2, 2023New AppVersion 9.2.6z in PUZZLE for Free
Show all changes Show fewer

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Installs

Tracked by AppBrain
Last 30 days
6
Play install range
100+
Launched
January 2023

Installs over time

Opal Stack has been installed 150 times. Over the past 30 days, it has been installed 6 times.

Rankings

Google Play top charts

Google Play Rankings for Opal Stack

This app is not ranked

About the app and developer

About Opal Stack

Opal Stack is a puzzle app developed by QUIZ GAME.

Download Statistics

Opal Stack has been downloaded 150 times. In the last 30 days, the app was downloaded 6 times.

User Ratings

The app has no ratings yet.

App Information

Opal Stack is freely available from Google Play. The APK size is 15.90 MB. The latest APK version available is 20.20.20. The last update was on January 2, 2023.

Technical Requirements

The app has a content rating of Everyone. The APK has been available on Google Play since January 2023.

App Performance Report

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Developer information for QUIZ GAME

QUIZ GAME

app.abdulhaq@gmail.com

Legal name:

Address:

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Share Opal Stack

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RLT: Reading Log Book Tracker icon RLT: Reading Log Book Tracker
Yuuna: Bookshelf Book Tracker icon Yuuna: Bookshelf Book Tracker
Leero: Book & Reading Tracker icon Leero: Book & Reading Tracker
Reading Timer - Book Tracker icon Reading Timer - Book Tracker
READO - All About Books icon READO - All About Books
LibRoom – Book Tracker icon LibRoom – Book Tracker
Bookshelf icon Bookshelf
Booktou: Book Tracker icon Booktou: Book Tracker
Overview Alternatives History Reviews Rankings Technology
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