Dual N-Back: Memory Training app icon

Dual N-Back: Memory Training

Scientifically designed brain training game to improve working memory and focus

合格アプリ · com.goukaku.nback

Not rated yet 100K+ downloads v2.18.51 111 MB Android 10+ PEGI 3 · Everyone

At a glance

Latest version
v2.18.51 (2018051)
Updated
Oct 2, 2026 (6 days ago)
APK size
111 MB
Requires
Android 10+ (API 29)
CPU support
ARM 32-bit, ARM 64-bit
Graphics
OpenGL ES 3.0+
Category
Educational (game)
Listed since
Apr 6, 2026 (at least)
Permissions
17 (2 sensitive)
Website
goukakuappli.co.jp
Developer contact
[email protected]

About this APK

Dual N-Back: Memory Training is a game by 合格アプリ in the Educational category, listed since at least April 2026. It includes native code for ARM 32-bit and ARM 64-bit, so it runs on practically every phone.

It asks for 17 permissions, 2 of them sensitive: read shared storage and modify shared storage. The game offers in-app purchases through Google Play and can read the advertising ID that ad and analytics services use.

What's new in v2.18.51

New in this update: • Added French and Portuguese language support. • Added an option to change N-level from the pause screen. • Fixed a reminder-related issue. • Fixed an issue where the pause screen could remain visible after starting the tutorial. • Improved the review prompt experience. • Other localization updates, bug fixes, and improvements.

Description

From the listing uploaded by “superpocket”.

Dual NBack – Memory Training & Brain Game Dual NBack is a fun and challenging brain game designed to improve working memory, focus and mental performance. Unlike simple brain games, Dual N-back is based on a scientifically studied memory training method that pushes your cognitive limits and adapts as you improve. Set goals, get reminders, and climb the global leaderboards as you sharpen your mind! What Is Dual NBack? Dual NBack is an advanced memory training game where you track simultaneously both: • Visual positions • Audio letters Research suggests that consistent play may enhance your working memory—the ability to hold and process information briefly—and also boost short-term recall. How to Play Your task is to detect when the current stimulus matches what appeared N steps earlier. Start at Level N=2 and train your brain to remember patterns from multiple steps back. If the current position or sound matches what was shown N turns ago, tap the corresponding button. As your performance improves, the difficulty increases automatically — making every session both challenging and rewarding. You can also manually adjust: • N level • Speed interval • Session length Train at your own pace and build real cognitive endurance. Key Features Memory & Brain Training Structured working memory training designed to improve focus and mental agility. Customizable Settings Tailor your training and adjust your Game Settings. Turn immediate feedback on/off. Daily Reminders & Goals Build a consistent memory training habit. Set daily or weekly targets and enable notifications to help you practice consistently. Global Leaderboards Compete with players worldwide and track your improvement. Share Function Post your results on social media or messaging apps to challenge your friends and family. Multilingual Support Currently offered in English and Japanese, with more languages on the way. Why Train Your Working Memory? Working memory allows you to: • Concentrate longer • Process information faster • Make better decisions • Perform mental calculations Regular brain training exercises like Dual N-Back can help strengthen this mental capacity, potentially improving focus, concentration, and overall cognitive flexibility. Upgrade to Dual NBack Pro Enjoy a 3-day free trial and experience ad-free memory training. Take your brain training seriously without interruptions. Start Your Memory Training Today Download Dual N-Back and challenge your brain with a fun and scientifically grounded cognitive workout. If you choose to purchase Dual NBack Pro, the payment is charged to your account. Renewal fees are charged within 24 hours before the current subscription period ends. You can cancel your subscription anytime. If you don’t cancel before the trial ends, the paid subscription automatically starts. Summary Strengthen Your Mind: Give your working memory a proven workout. Adapt the Difficulty: Start at N=2 or set your preferred challenge level. Stay Motivated: Leverage reminders, goals, and leaderboards to keep pushing your limits. Go Pro for No Ads: Take advantage of a 3-day free trial and upgrade to an ad-free training experience. Download Dual NBack now and take your cognitive performance to a new level!

Security & authenticity

Security rating: Trusted

Signing certificate

  • Certificate issued to “zph-mph” Not the developer's name (“合格アプリ”). Names in certificates can't be verified, so this alone proves nothing.

Store checks and file details

  • Developer signature under review Oct 2, 2026
  • Signed byCN=Jx Clarynx, O=zph-mph, OU=anon.org, L=Caraga, ST=Surigao Del Norte, C=8609
  • Signing certificate (SHA-1)7D:64:F9:C2:53:C7:EF:35:A0:72:0F:6F:8A:80:2B:D4:B9:20:AA:3A
  • File MD5a48f45e84d8513c1c55bcff7f353e8f2
  • Uploaded by “superpocket” Silver tier · 5,272 followers · uploading since 2016

Scans and ratings come from the source store; the certificate comparisons are AAPKs's own, made from the files' published signatures. AAPKs doesn't scan files itself — compare the MD5 and signer after downloading.

Permissions (17)

Dual N-Back: Memory Training requests 17 permissions, 2 of them sensitive.

Dual N-Back: Memory Training APK: questions and answers

Can I install this APK over the version I already have?

Only if it is signed with the same certificate as the copy on your phone and isn't an older version. If Android says “App not installed”, the certificates differ; uninstalling your copy first works but deletes its data unless it is backed up.

Is Dual N-Back: Memory Training free?

The APK is free to download, but the game offers in-app purchases through Google Play.

Is the Dual N-Back: Memory Training APK safe?

No one can promise that a file is safe, but some things can be checked. The source store rates this file Trusted. After downloading, check that the file's MD5 is a48f45e84d8513c1c55bcff7f353e8f2.

Tags

More Educational games