Alternatives

Products that do what Dual N Back does

Science-backed brain trainer for memory and focus.

1. 1
   Layer ▲1,002

   Brain-Inspired planner

   2024

2. 2
   Second Brain for AI▲286

   Persistent memory for Claude, ChatGPT & Cursor. Free.

   May 2026 · github.com

3. 3
   Second Brain▲302

   AI visual board and knowledge base

   2025

4. 4
   Brain Booster▲97

   Test your memory, arithmetic and reflexes

   2021

5. 5
   LearnBack▲11

   Turn learning into memory with daily recall

   Mar 2026

6. 6
   SECOND BRAIN 2.0▲111

   Get organized, get productive with Second Brain 2.0

   2023

7. 7
   Traverse▲324

   Learn new skills faster with 290% better recall

   2021

8. 8
   Noro ADHD Planner▲195

   Turn a braindump and wordvomit into a structured plan

   Nov 2025

9. 9
   TwinMind: AI Second Brain for Mobile▲228

   Remember meetings, lectures, or your entire life for free

   2025

10. 10MC
    Memory Chimp – How good is your working memory?▲53

    2014 · awendt.github.io

11. 11BA
    Build a personal knowledge graph from the content you consume online▲79

    I've been working on this tool that lets you build a personal knowledge graph from articles, blog posts, podcasts, YouTube videos, and other content you find interesting online. You can safely forget everything and trust that Recall will resurface it when something new that is related comes up. Looking forward to your thoughts and feedback on how it could be improved! The original version of Recall was posted last year nov on HN: https://news.ycombinator.com/item?id=33425947 Since then I have pivoted to a browser extension.

    2023 · recall.wiki

12. 12
    GridBack Memory▲3

    Train working memory with quick N-back games

    27d ago · mindgrid-n-back.netlify.app

13. 13
    NeuroBlock▲120

    No-code AI Lab: Train models, access datasets, run inference

    Feb 2026

14. 14QR
    Quick Rewire – I made web tool to rewire your brain▲27

    Hi HN, I work with a mixed group of developers, data scientists and neuroscientists, and for fun recently built a tool inspired by psychological studies. The idea is to demonstrate how quickly technology can change how your brain works, and potentially the impact that technology actually has over our agency without us even noticing.

    2022 · quickrewire.com

15. 15IB
    I built my own second brain software tool▲41

    2021 · joeldare.com

16. 16
    Glasp AI Clone: Learning Memory▲108

    Turn highlights into memories and let your AI learn like you

    2025

17. 17
    Cortex by SKYNETLAB▲85

    The memory layer that decides what's worth remembering

    13d ago · skynetlab-cortex.com

18. 18
    Neuri▲4

    Brain Training App to Beat Doomscrolling & Build Focus

    May 2026 · promo.neuri.app

19. 19WI
    Wunderbrain – Indie iOS app to train your brain in a few minutes a week▲50

    2015 · itunes.apple.com

20. 20
    Moinaki — ADHD-friendly learning▲4

    Learning for brains that don't finish online courses

    May 2026 · moinaki.life

21. 21VP
    Versus: Performance Brain Training▲11

    2014 · getversus.com

22. 22IC
    I created a Neural Network from scratch, in scratch▲7

    I spent the past week implementing a 1 Layer Neural Net and training it on MNIST within the visual scripting language provided by scratch.mit.edu. It was tedious, but ultimately not too difficult. The code runs incredibly slowly, so much so that 64 samples of MNIST takes 5+ hours to train on my machine. There were a lot of little mini challenges that were fun to overcome (implementing softmax was very tricky). If you're interested, I encourage you to try and improve on it! More details in the linked blog post.

    2024 · bell-boy.github.io

23. 23
    Super Brain▲1

    Neuroplasticity-based focus. Free beta now.

    Mar 2026

24. 24
    Valen- Train Smarter▲5

    Train smarter. Recover better. Repeat.

    Jun 2026 · valenapp.tech

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