Addition Memorizer app icon

Addition Memorizer

Memorize the 9 x 9 addition table.

MATH Domain Development · com.mathdomaindevelopment.additionmemorizer

Not rated yet 10K+ downloads v1.0.17 5.4 MB Android 5.0+ PEGI 3 · Everyone

  • Signature matches the Google Play version Details

At a glance

Latest version
v1.0.17 (17)
Updated
Aug 28, 2025 (1 year ago)
APK size
5.4 MB
Requires
Android 5.0+ (API 21)
CPU support
Any (no native code)
Category
Education (app)
Listed since
Jun 13, 2021 (at least)
Permissions
9
Website
mathdomaindevelopment.blogspot.com
Developer contact
[email protected]
Privacy
Developer's privacy policy

About this APK

Addition Memorizer is an app by MATH Domain Development in the Education category, listed since at least June 2021. It has no native code, so it runs on any Android processor.

Since version 1.0.13, the APK grew from 4 MB to 5.4 MB. It asks for 9 permissions, none of them sensitive. It asks for the same permissions as version 1.0.16.

What's new in v1.0.17

(1.0.17) + Updated target API to Android 15 (SDK 35): Added support for Predictive Back Gesture. + Dialog shown after an error occurs when setting up Verbal Feedback now gives the options to Retry Setup, Keep Off, or Use Sounds. + Addressed several deprecations regarding sound and verbal feedback.

Description

From the listing uploaded by “appupdater”.

Addition Memorizer helps you memorize the 9 x 9 addition tables. General Features + Provides interactive lists covering the first 9 addition tables. + A practice area to improve accuracy. + A timed area to improve speed. + Keeps track of overall progress and best times. There are five general areas: Times Tables provides a stress free learning environment. It's a modern take on addition flash cards. This area displays the entire addition table, a "row" at a time. You can show or hide the answers to any addition problem at any time. There are no questions, no time limit, no data tracking. Practice is where your addition memorization is tested. Questions are randomly generated. It's your job to enter the answer digit by digit (there is no multiple choice). The number of correct and incorrect attempts are tracked and saved for each addition fact. Incorrect problems are listed at the end of each session and you'll have the option to repeat all the questions, repeat only on the incorrect attempts, or shuffle the questions all together. Time Trials is where you put all that practice to the test: How fast can you answer 10 addition questions? Compete against yourself or compare your times with friends and people all over the world! Time Records keeps track of your top 10 fastest completion times for each addition problem set attempted in the Time Trials area. Displays your rank, initials, time, and date for each record. Note: to set a record, you must answer 8 of the 10 questions correctly! Data is where you can see how you're doing for each addition fact. The result for each fact is displayed as a colored box inside an addition chart. The colors range from green to red (with green meaning good and red meaning not-so-good). Pressing a box will show more details for that fact: Number Correct, Total Attempts, Percentage, and Grade. Look for more addition games and features to be added in the future! This is a free-to-download, ad-supported app. Thanks for recommending and leaving a review. MATH Domain Development

Version history

4 versions are listed, going back to v1.0.13. Since v1.0.15 it requires Android 5.0+.

All 4 versions

Security & authenticity

Security rating: Trusted

Signing certificate

  • Signature matches the Google Play version Checked by the source store on Aug 28, 2025.
  • Certificate issued to “MATH Domain Development” 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 Aug 28, 2025
  • Validated against Google Play Aug 28, 2025
  • Signed byCN=Edgar, OU=MATH Domain, O=MATH Domain Development, ST=CA, C=US
  • Signing certificate (SHA-1)E4:14:E0:E0:6C:CC:B8:58:06:89:BB:8D:96:CF:9C:91:F1:12:08:C1
  • File MD51ab6be480bc4be2cc35a411c42754488
  • 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 (9)

Addition Memorizer requests 9 permissions, none of them sensitive.

Required hardware & features

Addition Memorizer APK: questions and answers

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 Addition Memorizer 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 1ab6be480bc4be2cc35a411c42754488.

Tags

More Education apps