Software Alternatives, Accelerators & Startups

Startup Notes VS ForthWrite

Compare Startup Notes VS ForthWrite and see what are their differences

Startup Notes logo Startup Notes

Most actionable advice from each Startup School speaker

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.
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  • Startup Notes Landing page
    Landing page //
    2022-07-26
  • 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.

Startup Notes

Pricing URL
-
$ Details
-
Platforms
-
Release Date
-

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

Startup Notes features and specs

  • Comprehensive Resource
    Startup Notes provides extensive resources, guides, and tips for aspiring entrepreneurs, covering a wide array of topics essential for startup success.
  • Quality Advice
    The platform offers high-quality advice from experienced founders and industry experts, helping users to gain valuable insights into the entrepreneurial journey.
  • Structured Content
    The content is well-organized and structured, making it easy for users to navigate and find the information they need quickly.
  • Networking Opportunities
    Startup Notes facilitates networking by connecting users with like-minded entrepreneurs, mentors, and potential investors.
  • Free Access
    The resource is free to access, making it an inclusive platform for entrepreneurs who may be in the early stages and unable to afford premium advisory services.

Possible disadvantages of Startup Notes

  • Outdated Content
    Some information on the platform may become outdated, as it might not be regularly updated to reflect the latest trends and changes in the startup ecosystem.
  • Limited Interactivity
    The platform may lack interactive features such as live discussions, Q&A sessions, or direct mentorship, which could be beneficial for users seeking personalized guidance.
  • Generic Advice
    Some of the advice might be generic and not specifically tailored to individual user needs or particular industries, which might limit its applicability for certain users.
  • Information Overload
    The extensive range of resources can be overwhelming for some users, making it difficult to discern which information is most pertinent to their specific situation.
  • Potential Bias
    The advice and resources might reflect the personal experiences and biases of the contributors, which may not always align with every user's unique circumstances.

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 Startup Notes

Overall verdict

  • Startup Notes is considered a valuable resource for anyone interested in startups and entrepreneurship. It is well-regarded for its quality content, insightful interviews, and practical advice. The platform can be especially beneficial for newcomers to the startup world who are looking to learn from the experiences of others.

Why this product is good

  • Startup Notes is a platform dedicated to sharing insights and experiences from successful entrepreneurs and thought leaders in the startup ecosystem. It provides valuable content that is particularly useful for budding entrepreneurs, offering lessons learned, strategies for growth, and tips on overcoming common challenges. The depth and diversity of the perspectives shared can help readers gain a better understanding of the startup landscape and inspire them to refine their business ideas and execution plans.

Recommended for

  • Aspiring entrepreneurs
  • Startup founders
  • Business students
  • Professionals seeking inspiration in the startup field
  • Investors looking to understand startup dynamics

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

Startup Notes videos

Zero to One | Peter Thiel & Blake Masters | Startup Notes | Book Review | Book Summary

ForthWrite videos

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

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Category Popularity

0-100% (relative to Startup Notes and ForthWrite)
Productivity
100 100%
0% 0
Email
0 0%
100% 100
Web App
100 100%
0% 0
Email Productivity
0 0%
100% 100

Questions & Answers

As answered by people managing Startup Notes 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

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Reviews

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

Startup Notes Reviews

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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)

What are some alternatives?

When comparing Startup Notes and ForthWrite, you can also consider the following products

Better Notes - Simple notes app that ties notes together with #hashtags

ReclaimAI - Helps users prioritize their work and personal calendars

Whimsical - The visual workspace for teams.

Superhuman - Superhuman is an email management tool.

Great F*cking Startup Advice - Strongly worded suggestions for startup founders

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