Software Alternatives, Accelerators & Startups

Brain Workshop VS ForthWrite

Compare Brain Workshop VS ForthWrite and see what are their differences

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Brain Workshop logo Brain Workshop

Brain Workshop is a open-source version of the dual n-back brain training exercise.

ForthWrite logo ForthWrite

Email that sounds like you, and gets measurably more like you every week. Drafts in Gmail, Outlook, and the browser. Free to start.
Visit Website
  • Brain Workshop Landing page
    Landing page //
    2018-11-20
  • ForthWrite Landing Page
    Landing Page //
    2026-06-19
  • ForthWrite Dashboard
    Dashboard //
    2026-06-19
  • ForthWrite In Gmail
    In Gmail //
    2026-06-19
  • ForthWrite Pricing
    Pricing //
    2026-06-19

ForthWrite is an AI email writing assistant for Gmail and Outlook that learns your writing style from your real sent mail. The more you use it, the more it sounds like you. Get smart drafts in seconds, auto-draft replies before you open your inbox, and maintain your personal voice at scale. Free to start, no credit card required. Works inside Gmail and Outlook on the web.

How it works

ForthWrite captures your tone, sentence rhythm, and sign-offs from your actual sent emails, then uses that profile to generate drafts that match how you write, not a generic AI voice. Every draft you edit or send improves the model over time.

Key features

  • Auto-draft: replies waiting in Gmail before you open your inbox
  • Voice matching from your real sent mail, not templates
  • Recipient-aware drafts that adapt to who you are emailing
  • Prompt Lab for version-controlling and A/B testing your persona prompt
  • BYOK support: bring your own API key for Claude, OpenAI, Grok, Mistral, and more
  • Works in Gmail and Outlook on the web, plus a standalone browser widget
  • Training data export and full data portability

Who uses it

Professionals who send high volumes of relationship-critical email: lawyers, financial advisors, recruiters, account executives, founders, and anyone who wants their inbox handled without sounding like a chatbot wrote it.

Pricing

Free tier includes 10 drafts per week with no credit card required. Paid plans start at $12/month and include unlimited drafts, custom persona prompts, and auto-draft.

ForthWrite

$ Details
freemium $12.0 / Monthly (Standard plan)
Platforms
Web
Release Date
2026 June
Startup details
Country
United States
State
California
City
San Diego
Founder(s)
Curtis Boortz
Employees
1 - 9

Brain Workshop features and specs

  • Cognitive Enhancement
    Brain Workshop is based on the dual n-back task, a scientifically researched method for improving working memory and fluid intelligence.
  • Customizability
    The software allows for a variety of custom settings, enabling users to tailor their training sessions to their individual preferences and needs.
  • Open Source
    Brain Workshop is open-source software, meaning it is free to use, modify, and distribute, fostering community contributions and transparency.
  • Cross-Platform
    The application is available on multiple platforms including Windows, macOS, and Linux, making it accessible to a wide range of users.
  • Regular Updates
    The software receives periodic updates and bug fixes, ensuring it remains functional and up-to-date with new features.

Possible disadvantages of Brain Workshop

  • Steep Learning Curve
    Users may find the dual n-back task challenging to understand and master initially, which could discourage continued use.
  • Limited Scientific Support
    While some scientific studies support the dual n-back task, the broader scientific community remains divided on its long-term benefits for cognitive enhancement.
  • User Interface
    The user interface of Brain Workshop is somewhat dated and may not be as intuitive or visually appealing as more modern brain training applications.
  • Lack of Variety
    The primary focus on the dual n-back task may render the software monotonous for users seeking a broader range of cognitive exercises.
  • Resource Intensive
    The application can be resource-intensive, particularly on older computers, which may negatively impact performance.

ForthWrite features and specs

  • Voice Matching
    Learns from your real sent mail, not templates
  • Auto-draft replies
    Replies waiting in Gmail before you open your inbox
  • Batch-drafting
    Draft replies for your entire inbox with one click
  • Works in browser
    Gmail, Outlook, and web browsers
  • BYOK support
    Claude, OpenAI, Grok, Mistral, and more
  • Prompt Lab
    Version control and A/B test your persona prompt
  • Free tier
    10 drafts per week, no credit card required

Analysis of Brain Workshop

Overall verdict

  • Brain Workshop is considered a good tool for those interested in cognitive training, especially for those who are inclined towards scientifically-supported methods for improving mental faculties. However, users may have varying experiences, and its effectiveness can depend on individual engagement and consistency in using the software.

Why this product is good

  • Brain Workshop is a cognitive training program that is based on the principles of the dual n-back task, which has been shown in some studies to improve working memory and fluid intelligence. The open-source nature of the software allows users to customize and potentially contribute to its development, making it a flexible tool for personal brain training needs.

Recommended for

    This program is recommended for individuals who are interested in enhancing their working memory and cognitive skills, such as students, professionals, and anyone seeking a mental challenge. It is also well-suited for those who appreciate open-source software and tech-savvy users who might want to customize their training experience.

Analysis of ForthWrite

Overall verdict

  • I don't have verified information about a product called ForthWrite (forthwrite.ai). I cannot confirm its features, quality, or reputation, so I'm unable to provide an accurate assessment of whether it's good.

Why this product is good

  • No reliable data available on this specific product in my knowledge base
  • This may be a newer product, a niche tool, or possibly a fictional/hypothetical name
  • Providing details without verified information could result in inaccurate or fabricated claims

Recommended for

  • Unable to determine without verified product information
  • Consider checking the official website, user reviews on platforms like G2 or Trustpilot, and independent tech review sites for accurate details

Brain Workshop videos

Rock Me Archimedes from Marbles Brain Workshop

More videos:

  • Review - Stomple Pokie Dokie GoTrio - Marbles Brain Workshop Game Review
  • Review - Oh! Snap from Marbles Brain Workshop

ForthWrite videos

No ForthWrite videos yet. You could help us improve this page by suggesting one.

Add video

Category Popularity

0-100% (relative to Brain Workshop and ForthWrite)
CMS
100 100%
0% 0
Email
0 0%
100% 100
Social Media Tools
100 100%
0% 0
Email Productivity
0 0%
100% 100

Questions & Answers

As answered by people managing Brain Workshop and ForthWrite.

Which are the primary technologies used for building your product?

ForthWrite's answer:

Next.js, React, Supabase, Anthropic Claude, OpenAI, Stripe, Vercel, Chrome Extensions API

What makes your product unique?

ForthWrite's answer:

ForthWrite learns your writing style from your actual sent mail, not a generic prompt. Every draft sounds like you wrote it because it was trained on how you actually write. It also auto-drafts replies before you open your inbox, so your email is partially handled before your day starts.

Why should a person choose your product over its competitors?

ForthWrite's answer:

Most AI email tools give you a blank box and a "write for me" button. ForthWrite builds a voice profile from your sent history and gets more accurate with every draft you edit or send. Unlike ChatGPT or Gemini, it works natively inside Gmail and Outlook with no copy-paste. Unlike Lavender, it writes the draft, not just scores it.

How would you describe the primary audience of your product?

ForthWrite's answer:

Professionals who send high volumes of relationship-critical email and cannot afford to sound generic: lawyers, financial advisors, recruiters, account executives, consultants, and founders managing their own inbox.

What's the story behind your product?

ForthWrite's answer:

Built out of frustration with AI writing tools that produce text that sounds nothing like the person sending it, and as a way to handle large amounts of daily email. The core insight was that your sent mail is the best training data you already have, and no tool was using it.

User comments

Share your experience with using Brain Workshop and ForthWrite. For example, how are they different and which one is better?
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Reviews

These are some of the external sources and on-site user reviews we've used to compare Brain Workshop and ForthWrite

Brain Workshop Reviews

We have no reviews of Brain Workshop yet.
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ForthWrite Reviews

  1. curtisboortz
    ยท Founder at ForthWrite ยท
    I built ForthWrite to fix generic AI email, and I still use it every day

    I built ForthWrite because I kept sending emails that sounded like they came from the same generic AI as everyone else. After launching it, I still use it for my own inbox every day, which is about the most honest endorsement I can give.

    The Chrome extension lives inside Gmail and Outlook on the web. Open a thread, hit Alt+Shift+D, and a draft comes back in your voice, not a template. The free tier is real: 10 drafts per week, no API key, no credit card. Voice matching is included on free, because that is the point.

    What keeps it useful compared to Gemini or a chat tab: it learns from what you actually send. Every edit you make before hitting send becomes a signal. Over time the drafts drift closer to how you really write, and the dashboard shows the improvement curve so you can see it happening.

    The web compose surface lets you draft from forthwrite.ai without installing anything, useful for people who want to try before committing to the extension.

    Standard adds recipient-aware and intent-aware drafting plus AI coaching. Pro adds auto-draft (replies waiting when you open Gmail), batch replies, and Prompt Lab for version-controlling your prompts. Teams adds a shared persona and seat-level analytics.

    ForthWrite is not for everyone. If you just need quick replies and tone does not matter, Gemini is free and already in your inbox. ForthWrite is for people where tone does matter: client communication, relationship-driven threads, external correspondence where sounding off costs something real.

    Disclosure: I am the founder and use it daily. Happy to answer questions in the comments.

    ๐Ÿ Competitors: Jace.ai, Fyxer, Mailmeteor
    ๐Ÿ‘ Pros:    Drafts land inside gmail and outlook; no copy-pasting from a chat window|Voice matching is on the free tier, not paywalled behind paid plans|No api key, no credit card to start; free tier runs on a server-side proxy|Learns from every edit you make before sending; drafts improve over time|Full keyboard flow: alt+shift+d to draft in any thread, no mouse required|Byok on paid plans, 9 providers supported, keys encrypted at rest|Web compose at forthwrite.ai works without installing the extension at all
    ๐Ÿ‘Ž Cons:    10 free drafts/week is enough to evaluate, not enough for a heavy inbox|Auto-draft, batch replies, and prompt lab all require the pro tier|Early-stage product; fewer third-party integrations than mature inbox tools|No mobile app: the extension and add-in are desktop-only (chrome on web, or the outlook desktop add-in)

Social recommendations and mentions

Based on our record, Brain Workshop seems to be more popular. It has been mentiond 10 times since March 2021. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.

Brain Workshop mentions (10)

  • Try Thinking and Learning Without Working Memory (2008)
    I can attest to the benefits of n-back. I've been doing it for a couple of years now, five days a week for 20-25 minutes. I've noticed a tangible positive difference in both my verbal fluency and my processing speed on days where I engage this protocol. I've benefited so much from this protocol that I [created a mini app just for myself](https://mind-workout.pages.dev/)* as I was unable to find a suitable app for... - Source: Hacker News / over 1 year ago
  • The Overflowing Brain: Information Overload and the Limits of Working Memory
    Have you tried gluten free ginkgo biloba bee pollen salt lamps? Sorry, I had to. But here's an actual real suggestion that may or may not be any better. It's a working memory trainer that I feel has slightly helped improve my own working memory called Brain Workshop. Obviously proper diagnosis and medical treatment would be preferred. https://brainworkshop.sourceforge.net/. - Source: Hacker News / about 3 years ago
  • The Overflowing Brain: Information Overload and the Limits of Working Memory
    There is a good desktop trainer (/game) here: https://brainworkshop.sourceforge.net/ In short, my understanding is that we can't improve it, but that could be very much due to the lack of actual dedicated research. If we could, it would essentially be a super power. - Source: Hacker News / about 3 years ago
  • Ask HN: I'm 40 and feel my mental ability declining. Programming seems harder
    Found Brain Work here: https://brainworkshop.sourceforge.net/ and also a browser-based versions of Dual-N-Back here: https://www.brainturk.com/dual-n-back https://brainworkshop.sourceforge.net/. - Source: Hacker News / over 3 years ago
  • I have no idea how to respond to witty banter
    In addition to what other people are saying re: comedians and practicing, I've also found regularly doing a few rounds of Dual N-Back (or anything else that has me juggle multiple memories while working with logic, like leetcode or logic puzzles) almost magically bumps me up a tier on the banter-o-meter too. Source: almost 4 years ago
View more

ForthWrite mentions (0)

We have not tracked any mentions of ForthWrite yet. Tracking of ForthWrite recommendations started around Jun 2026.

What are some alternatives?

When comparing Brain Workshop and ForthWrite, you can also consider the following products

Lumosity - Discover what your mind can do. Improve memory, increase focus, and find calm - with the #1 brain training app. Get started now.

ReclaimAI - Helps users prioritize their work and personal calendars

Peak - Peak is the automated way to keep track of what everyone is working on.

Superhuman - Superhuman is an email management tool.

gbrainy - gbrainy is a brain teaser game and trainer to have fun and to keep your brain trained.

Shortwave - Email smarter & faster with a reinvented experience for your Gmail