Software Alternatives, Accelerators & Startups

Felt VS ForthWrite

Compare Felt VS ForthWrite and see what are their differences

Note: These products don't have any matching categories. If you think this is a mistake, please edit the details of one of the products and suggest appropriate categories.

Felt logo Felt

Felt lets you create maps collaboratively, using world-class data, and share them in a single click. For team projects or epic adventure with friends.

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
  • Felt Landing page
    Landing page //
    2023-07-04
  • 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.

Felt

Website
felt.com
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

Felt features and specs

  • User-Friendly Interface
    Felt provides a clean and intuitive interface, making it easy for users to create and customize maps without extensive technical knowledge.
  • Collaborative Features
    The platform offers collaborative tools that allow multiple users to work on the same map in real-time, enhancing team productivity and communication.
  • Customizable Maps
    Felt allows users to add various layers and data points, enabling detailed and personalized map creations to suit different needs.
  • Integration Capabilities
    Felt supports integration with other tools and services, allowing for seamless data import and export, which can enhance workflow efficiency.

Possible disadvantages of Felt

  • Limited Offline Functionality
    Users may experience limitations when trying to access or edit maps offline, which can be inconvenient for those needing constant access.
  • Potential Learning Curve
    While the interface is user-friendly, some users may encounter a learning curve initially, particularly those unfamiliar with map-making tools.
  • Subscription Costs
    Access to advanced features and tools on Felt may require a subscription, which could be a consideration for budget-conscious users.
  • Performance Issues
    Some users might experience performance issues, especially with large datasets or complex maps, which could hinder the overall user experience.

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 Felt

Overall verdict

  • Yes, Felt (felt.com) is a good service for those who enjoy sending personalized greeting cards. Its user-friendly interface, unique personalization options, and the convenience of sending cards from anywhere make it a well-regarded option in the card-sending market.

Why this product is good

  • Felt.com is designed to provide an easy and engaging way to create and send personalized greeting cards. Its appeal lies in the convenience of sending real, physical mail through a digital interface, along with the ability to add handwritten messages and personal photos, which gives a warm and personal touch to the cards.

Recommended for

  • Individuals who enjoy sending personalized, heartfelt greeting cards.
  • People looking for a convenient way to send physical mail digitally.
  • Anyone seeking a unique and personal way to stay in touch with loved ones through real mail.

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

Felt videos

Felt App Review YouTube

More videos:

  • Review - The BIG PROBLEM with the Felt IA | Brutally Honest Review
  • Review - The Truth About Felt Bikes. Felt F4

ForthWrite videos

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

Add video

Category Popularity

0-100% (relative to Felt and ForthWrite)
Maps
100 100%
0% 0
Email
0 0%
100% 100
Web Mapping
100 100%
0% 0
Email Productivity
0 0%
100% 100

Questions & Answers

As answered by people managing Felt 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 Felt 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 Felt and ForthWrite

Felt Reviews

We have no reviews of Felt 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, Felt 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.

Felt mentions (28)

  • DuckDB is probably the most important geospatial software of the last decade
    I work on geospatial apps and the software I think I am most excited about is https://felt.com/. I want to seem them expand their tooling such that maps and data source authentication/authorization was controllable by the developer, to enable tenant isolation with propriety data access. They could really disrupt how geospatial tech gets integrated into consumer apps. This article doesn't acknowledge how niche this... - Source: Hacker News / about 1 year ago
  • Ask HN: Who is hiring? (February 2025)
    Felt | Senior Infrastructure Engineer, Growth Product Manager | Oakland, CA or REMOTE (US only) | Full Time | https://felt.com Felt is building a cloud-based geographic information systems (GIS) solution and have hundreds of customers already using it to run their operations, processing terabytes of data. Our team hails from Uber, Google, Meta, CARTO, Mapbox, The New York Times and a few others. If you have used... - Source: Hacker News / over 1 year ago
  • Show HN: Atlas โ€“ Make maps like never before
    How does this compare to Felt [1]? It would be nice to have some plans with listed prices in between "Free" and "Enterprise" ("book a demo"). For comparison, Felt has $30/mo and $90/mo plans. Calling yourselves "the new standard for GIS software" seems like overly strong branding. [1]: https://felt.com/. - Source: Hacker News / over 2 years ago
  • Ask HN: Who is hiring? (December 2023)
    Felt | Engineering Manager, App and Data | Oakland, CA or REMOTE (US timezones) | Full Time | https://felt.com Felt is the best way to make maps on the internet. It's surprisingly hard to make a map today, and people in 15+ industries rely on them to do their jobs. Climate change and the resulting natural disasters are forcing even more people to become map-makers, and Felt is here to meet that need. It's the... - Source: Hacker News / over 2 years ago
  • Placemark is going open source and shutting down
    For anyone else who follows along in this domain, there's an interesting competitor in the space I stumbled across recently: https://felt.com/ Pretty nice looking product and robust feature set. Love to see GIS tooling becoming more accessible. - Source: Hacker News / over 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 Felt and ForthWrite, you can also consider the following products

Mapbox Studio - A design platform for radically custom maps

ReclaimAI - Helps users prioritize their work and personal calendars

Atlas.co - Your all-in-one map builder

Superhuman - Superhuman is an email management tool.

Mapbox - An open source mapping platform for custom designed maps. Our APIs and SDKs are the building blocks to integrate location into any mobile or web app.

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