Software Alternatives, Accelerators & Startups

Whimsical VS ForthWrite

Compare Whimsical VS ForthWrite and see what are their differences

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Whimsical logo Whimsical

The visual workspace for teams.

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
  • Whimsical Landing page
    Landing page //
    2023-07-25
  • 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.

Whimsical

$ Details
-
Platforms
-
Release Date
-
Startup details
Country
United States

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

Whimsical features and specs

  • User-Friendly Interface
    Whimsical's clean and intuitive interface makes it easy for users to create flowcharts, wireframes, mind maps, and sticky notes without a steep learning curve.
  • Collaboration Features
    The platform supports real-time collaboration, allowing team members to work together simultaneously and see changes in real-time, which enhances productivity.
  • Integrations
    Whimsical integrates with a variety of tools such as Slack, Google Drive, and Jira, which can streamline workflows and improve project management efficiency.
  • Templates and Components
    The availability of pre-built templates and reusable components helps users to quickly get started and maintain consistency across their projects.
  • Cross-Platform Compatibility
    Being a web-based application, Whimsical can be accessed from any device with an internet connection, making it versatile for remote and on-the-go work.

Possible disadvantages of Whimsical

  • Limited Free Plan
    The free plan has limitations in terms of the number of boards and items you can create, which might not be sufficient for larger or ongoing projects.
  • No Offline Mode
    Whimsical requires an internet connection to access and edit documents, which can be a drawback if you need to work offline.
  • Learning Curve for Advanced Features
    While the basic features are easy to grasp, some advanced features and customizations can have a learning curve and may require additional time to master.
  • Performance Issues
    Some users may experience performance lags or delays, especially when working with large and complex projects.
  • Subscription Cost
    While offering a range of useful features, Whimsical's subscription costs may be considered high for some users or small teams, compared to other similar tools.

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 Whimsical

Overall verdict

  • Whimsical is generally considered a good tool for design and collaboration, with positive feedback for its user-friendliness and range of features.

Why this product is good

  • Whimsical is a tool known for its ease of use, intuitive interface, and versatility in creating flowcharts, wireframes, mind maps, and sticky notes. It provides real-time collaboration features, making it suitable for teams working remotely. The platform emphasizes a clean design and offers integrations with other tools, which enhances its utility for various project management and brainstorming purposes.

Recommended for

    Whimsical is ideal for product managers, designers, developers, and any teams that require a collaborative platform for visualizing ideas, creating wireframes, and organizing project workflows efficiently.

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

Whimsical videos

CREATE WIREFRAMES (FAST) WITH WHIMSICAL [THOUGHTS & FIRST IMPRESSIONS]

More videos:

  • Tutorial - Whimsical Sticky Notes Tutorial
  • Review - Scott Tries Whimsical - Flowcharts, Wireframes, Sticky Notes, and Mind Maps
  • Review - Digital Product Review: Whimsical

ForthWrite videos

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

Add video

Category Popularity

0-100% (relative to Whimsical and ForthWrite)
Productivity
100 100%
0% 0
Writing Tools
0 0%
100% 100
Diagrams
100 100%
0% 0
Email
0 0%
100% 100

Questions & Answers

As answered by people managing Whimsical 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 Whimsical and ForthWrite

Whimsical Reviews

We have no reviews of Whimsical 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, Whimsical seems to be more popular. It has been mentiond 60 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.

Whimsical mentions (60)

  • Client Expectations vs. Project Reality
    Use tools like Whimsical or Figma to prototype before coding. - Source: dev.to / about 1 year ago
  • Notion Mail Is Out
    I really do not want to see what a mail client with the UX of notion looks like. If anyone uses Notion and really cannot stand their UX, I'd strongly recommend Whimsical: https://whimsical.com/ -- it can do a bit of Trello too. - Source: Hacker News / about 1 year ago
  • I built an app to stop me doomscrolling by touching grass
    I thought for a moment you were talking about https://whimsical.com/, which is productivity suite that people depend on for work. I wouldn't want to hear it's shutting down! Then I realized you're talking about the concept of whimsical things, not a company. Whew! - Source: Hacker News / over 1 year ago
  • 7 Best AI Diagram Generators for Effortless Visuals
    6. Whimsical Whimsical is an AI-based diagramming tool crafted for speed and simplicity. Because it has an AI-powered autocomplete feature, Whimsical lets users pretty fast create flowcharts, wireframes, and mind maps. As soon as you start typing or adding elements on the platform, it will auto-suggest relevant shapes and connectors in order to create complex visuals in the shortest amount of time. The minimalist... - Source: dev.to / almost 2 years ago
  • 17 Best Developer Productivity Tools to Try
    Diagrams and visualizations are often indispensable when explaining complex concepts or designing system architectures. Excalidraw and Whimsical are two popular quick drawing tools that allow developers to create diagrams easily. With their simple yet powerful interface, developers can create wireframes, flowcharts, and other visual representations in no time. These tools are great for both brainstorming ideas and... - Source: dev.to / about 2 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 Whimsical and ForthWrite, you can also consider the following products

Miro - Join Millions of users that collaborate from all over the planet using Miro. Experience the power of the #1 visual workspace for innovation. More than 100M users and 250,000 companies are collaborating on the canvas.

Superhuman - Superhuman is an email management tool.

draw.io - Online diagramming application

Gemini - Gemini, formerly known as Bard, is a generative artificial intelligence chatbot developed by Google. Based on the large language model (LLM) of the same name, it was launched in 2023 in response to the rise of OpenAI's ChatGPT.

LucidChart - LucidChart is the missing link in online productivity suites. LucidChart allows users to create, collaborate on, and publish attractive flowcharts and other diagrams from a web browser.

Lavender - Realtime coaching for sales emails.