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Android Apps > Education > Mathematics Gr 9: Book & Quiz
Mathematics Gr 9: Book & Quiz icon

Mathematics Gr 9: Book & Quiz

by Koyo Education & Tools · Education · Free
On Google Play since August 2022 · Data updated 2026-10-25
Google Play

Mathematics Gr 9: Book & Quiz is made and published by Koyo Education & Tools. AppBrain is an independent app data site and isn't affiliated with Koyo Education & Tools. The app name, icon, screenshots and description belong to Koyo Education & Tools and are shown as published on Google Play.

AppBrain's verdict

Installs
190 thousand
Last updated
October 24, 2026
Ads
Contains ads
Size
30.0 MB

Mathematics Gr 9: Book & Quiz has 190 thousand installs. It doesn't have enough ratings yet to judge what users think.

User feedback

Ratings and reviews on Google Play

Comments on Mathematics Gr 9: Book & Quiz for Android

★★★★☆ David Mageka · Feb 22, 2026
This is one of the best grade 9 mathematics book have seen but include answers
★★★★★ Kena Gaddisa · Mar 24, 2025
Now I know that these days the Ethiopian curriculum is so good and could be used as an international textbook. What a book that's easy to read and understand, From Netherlanland.
★★★★☆ Wubalem Gashaw · Oct 15, 2023
Please make full screen For more comfort for landscape screen reading
★★★★★ Nafkot Million · Sep 19, 2023
Wow it helped ne alot ,access topics easly...perfectly made
★★☆☆☆ Kidu Welde · Oct 10, 2023
It is good but the exercise and reviews are not the real question 😥😭😞😤
★☆☆☆☆ Feven · Apr 3, 2025
It is not correct, the units are messed up, it made me fail the exam

Store listing

By Koyo Education & Tools, from Google Play

“Grade 9 Mathematics textbook with AI Tutor, summaries, quizzes & offline study.”

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Screenshots by Koyo Education & Tools, from the Google Play listing
Description by Koyo Education & Tools Written by the developer, not by AppBrain. Click to read.
Mathematics Grade 9 – Ethiopian Curriculum Textbook & AI Study Companion

Study Grade 9 Mathematics smarter with the Ethiopian curriculum textbook, chapter summaries, practice quizzes, progress tracking, bookmarks, and an integrated AI Tutor — all in one Android app.

Whether you're learning a new chapter, revising for an exam, or need help understanding a difficult topic, Mathematics Grade 9 gives you convenient study tools wherever you are.

📚 GRADE 9 MATHEMATICS TEXTBOOK

Read the textbook directly on your phone or tablet with a clean, student-friendly experience. Navigate chapters easily, continue from where you stopped, and study offline.

🤖 AI TUTOR

Ask the built-in AI Tutor questions about your Mathematics studies and receive clear explanations to support your learning. You can also copy useful textbook content for notes, sharing, or further explanation.

📝 CHAPTER SUMMARIES

Review important concepts with chapter-based summaries. Each chapter appears in the Summaries section so you can easily see and access available study content.

Locked content provides a clear Unlock option, which may require watching an optional rewarded ad. Once successfully unlocked and downloaded, you can return to that content without repeatedly watching an ad for the same unlock.

🧠 PRACTICE QUIZZES

Test your understanding with chapter-based Mathematics quizzes. Browse by chapter, unlock available quiz content when needed, and practice before exams or after completing a chapter.

📊 PROGRESS & BOOKMARKS

Track your reading progress, automatically continue from where you left off, and bookmark important pages for quick access later.

🌙 LIGHT & DARK THEMES

Choose Light, Dark, or System theme for comfortable studying during the day or at night.

📱 DESIGNED FOR PHONES & TABLETS

A modern Material 3 interface adapts to different supported screen sizes and orientations for a comfortable reading and study experience.

✨ KEY FEATURES

• Offline textbook reading
• Easy chapter navigation
• Reading-position restoration
• Reading progress tracking
• Chapter summaries
• Chapter practice quizzes
• Integrated AI Tutor
• Smart bookmarks
• Light, Dark & System themes
• Portrait & landscape support
• Copy & share textbook content
• Modern Material 3 interface

🌍 MADE FOR ETHIOPIAN STUDENTS

Mathematics Grade 9 is designed to make the Ethiopian Grade 9 Mathematics textbook more accessible and useful as a digital study resource.

⚠️ DISCLAIMER

This is an independently developed educational app. It is not affiliated with, endorsed by, sponsored by, or officially connected to the Ethiopian Ministry of Education, the Amhara National Regional State Education Bureau, or any other government organization.

This app is a digital study aid and is not an official government application.

📖 TEXTBOOK SOURCE & OFFICIAL REFERENCES

The textbook content is based on publicly available Ethiopian educational materials published or distributed by relevant educational institutions.

Official references:

FDRE Ministry of Education:
https://moe.gov.et/

Amhara National Regional State Education Bureau:
https://anrseb.gov.et/

These links are provided for source attribution and reference only. Their inclusion does not imply affiliation, endorsement, or official approval of this app.

🚀 Study Mathematics wherever you are

Read, revise with summaries, practice quizzes, save important pages, track your progress, and get additional help from the AI Tutor — all from one Grade 9 Mathematics study app.

If you find the app useful, consider leaving a rating or review. Your feedback helps us continue improving the learning experience for Ethiopian students. 🇪🇹

Recent changes:
What's New
• Improved offline support for Summaries and AI Tutor, allowing previously saved Markdown (.md) content to display correctly without an internet connection.
• Enhanced Markdown rendering with better formatting for headings, lists, tables, and educational content.
• Enhanced app stability and compatibility.
• Bug fixes and performance optimizations for a smoother learning experience.

Update now for a better learning experience, online or offline!
Official page on Google Play

Safety and technology

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

Technologies used by Mathematics Gr 9: Book & Quiz

14 permissions
Subscribe to see full permission and library details

Releases

Updates seen on Google Play
Version
1.49.0
Launched
August 2022
  • Oct 24, 2026UpdateVersion 1.49.0
  • Sep 14, 2026UpdateVersion 1.45.0
  • Aug 19, 2026UpdateVersion 1.44.0
  • May 23, 2026UpdateVersion 2.41.0
  • Feb 20, 2026UpdateVersion 2.30.6
Show all changes Show fewer

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Installs

Tracked by AppBrain
Last 30 days
19 thousand
Per day
620
30-day average
Play install range
100+ thousand
Launched
August 2022

Installs over time

Mathematics Gr 9: Book & Quiz has been installed 190 thousand times. Over the past 30 days, it averaged 620 installs per day.

Rankings

Google Play top charts

Google Play Rankings for Mathematics Gr 9: Book & Quiz

This app is not ranked

About the app and developer

About Mathematics Gr 9: Book & Quiz

Mathematics Gr 9: Book & Quiz is an education app developed by Koyo Education & Tools.

Install Statistics

Mathematics Gr 9: Book & Quiz has been installed 190 thousand times. In the last 30 days, the app was installed 19 thousand times.

User Ratings

The app has no ratings yet.

App Information

Mathematics Gr 9: Book & Quiz is freely available from Google Play. The app size is 30.04 MB. The latest version available is 1.49.0. The last update was on October 24, 2026.

Technical Requirements

The app has a content rating of Everyone. The app has been available on Google Play since August 2022.

App Performance Report

Get a detailed PDF report for Mathematics Gr 9: Book & Quiz with download trends, rating history, and key performance statistics — useful for competitive research or tracking your own app. Learn more

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Developer information for Koyo Education & Tools

Koyo Education & Tools

zeinuka628@gmail.com

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