Software Alternatives, Accelerators & Startups

Windsor.ai VS ForthWrite

Compare Windsor.ai VS ForthWrite and see what are their differences

Windsor.ai logo Windsor.ai

Boost your marketing ROI with Windsor.ai Multi-touch Attribution Modelling Software.

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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  • Windsor.ai Landing page
    Landing page //
    2023-05-23

Windsor.ai is a Marketing Attribution Software, which works on advanced multi-channel machine learning algorithm to discover the real value of your marketing channels. Stop wasting your money or marketing & ad spend and tiring yourself in understanding data which doesnโ€™t make sense. Singup for a Free Demo to see how Windsor can help save marketing budget, simplifies analysis and reporting and improve marketing performance.

  • 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.

Windsor.ai

Website
windsor.ai
$ Details
paid Free Trial $19.0 / Monthly (Unlimited reports/ Unlimited users)
Platforms
Browser Firefox Cloud REST API Safari
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

Windsor.ai features and specs

  • Data integration
  • Data automation

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 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

Windsor.ai videos

Windsor.ai - introduction

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 Windsor.ai and ForthWrite)
Marketing Analytics
100 100%
0% 0
Email
0 0%
100% 100
Data Dashboard
100 100%
0% 0
Email Productivity
0 0%
100% 100

Questions & Answers

As answered by people managing Windsor.ai 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 Windsor.ai 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 Windsor.ai and ForthWrite

Windsor.ai Reviews

  1. Djordje Medakovic
    ยท senior advisor at Positive doo ยท
    Software that is actually easy to use

    I really enjoy using this software because it has a great attribution model, good customer journey maps, and even has a CRM integration, which is rare for this kind of software. In my Company, we are using it mostly to find insights on different steps of Customer journey and learning how to improve some of the online marketing actions. We have already accomplished some increase in our ROAS.

    ๐Ÿ Competitors: Supermetrics, Funnel CRM, HubSpot
    ๐Ÿ‘ Pros:    Customer support|Easy to use|Advanced features|Easy integration
    ๐Ÿ‘Ž Cons:    Nothing, so far

Best Affordable Alternatives to Supermetrics
The prices in Windsor are consistently low and competitive. It features an open application programming interface (API) and provides access to abundant data sources. Every package includes the capacity for multi-touch attribution and ad optimization. Reporting dates are what Windsor.ai charges for. For an extra $499 a month, you can upgrade to the Enterprise subscription and...
Source: adsbot.co
Top 5 Supermetrics Alternatives โ€“ Competitors, Cost, Features & Pricing Model
Below youโ€™ll find 5 Supermetrics alternatives. Some of them provide more flexibility with data (Stitch), make data more actionable (Windsor.ai, Rockerbox), or provide alternative pricing and integrations (Funnel.io, Improvado).
Source: windsor.ai
Funnel.io โ€” Data integration platform with 500+ data sources
Windsor.ai provides more than ETL and data hosting. It offers attribution modelling functionality. This means that you can give credit to each touch-point in the conversion journey. Other tools look only at the last touch-point.
Source: www.windsor.ai
Top 5 Supermetrics Alternatives You Should Know About
Below youโ€™ll find 5 Supermetrics alternatives. Some of them provide more flexibility with data (Stitch), make data more actionable (Windsor.ai, Rockerbox), or provide alternative pricing and integrations (Funnel.io, Improvado).
Source: www.windsor.ai
Supermetrics vs. Funnel.io vs. Windsor.ai vs. Fivetran vs. Improvado
Only you know your priorities for your data-pipeline needs. We can only provide different aspects to consider as you determine the best fit for your needs. In case you have a complex buyer journey and need to match the CRM data together with the analytics data, Funnel.io and Improvado are probably not the best choices. In case you would like to get started without talking to...
Source: www.windsor.ai

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, Windsor.ai seems to be more popular. It has been mentiond 28 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.

Windsor.ai mentions (28)

  • Is Windsor.ai safe as an App Exchange item? It asks for Read Permission on our "List and Subscribers".
    CEO of windsor.ai here. Everything we do is GDPR compliant and atm we are going the SOC2 type 2 certification so we should be quite safe. Source: about 3 years ago
  • LinkedIN ads (and other social media data) to Power BI
    Without third-party apps I really haven't found anything. I know you don't want third-party tools but in my case I use windsor.ai and I can easily connect my social media data without any problem and import it to PBI. Maybe you can try it and see if it works for you. Source: over 3 years ago
  • Hubspot to Excel - a journey of data sources
    Try with a third-party tool. I use one named windsor.ai and it has been working great for me so far. You can create a free account and test one connector for free, so there you can connect your Hubspot data and select Excel as the destination. Also, for you that don't want to spend money this option can fill your need because you only have one connector and will not have to pay any money. Maybe you can test it and... Source: over 3 years ago
  • Tableau help
    Just in case you have many datasources (maybe that can be your case in the future) I would suggest you to use a third-party tool to integrate your data from many sources, such as Google Ads, Facebook Ads, Linkedin Ads, GA4, etc. Also, knowing the fact that you don't have much experience with Tableau, using a third-party tool would help you to make the process of connecting the data much easier. There are many... Source: over 3 years ago
  • Need some advice in troubleshooting Looker issue - missing GA4 data from before the first of this month
    You can try using a third-party tool to connect your GA4 data to Looker and see if that way the data appears or works as it should. In my case I use one tool named windsor.ai that let's me connect my GA4 data. You can create a free account and test the GA4 connector for free, then select the fields you want and finally choose Looker as a destination. Also, another option is to use Power BI as the destination but... Source: over 3 years ago
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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 Windsor.ai and ForthWrite, you can also consider the following products

Tercept Unified Analytics - Tercept automatically aggregates and organizes all monetization data,analytics data and marketing data into one single dashboard with powerful querying and visualization capabilities. You can setup custom reports and automate 100% of your reporting.

ReclaimAI - Helps users prioritize their work and personal calendars

Supermetrics - Supermetrics simplifies marketing analytics by connecting, consolidating, and centralizing data from 150+ platforms into your favorite tools. Trusted by 200K+ organizations, we empower marketers to focus on insights, not manual work.

Superhuman - Superhuman is an email management tool.

Morphio - Morphio is an advanced-level marketing and analytics software solution that allows you to understand your business data and find the negative aspects of your business number before they start creating any problems.

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