Software Alternatives, Accelerators & Startups

Nylas Mail VS ForthWrite

Compare Nylas Mail VS ForthWrite and see what are their differences

Nylas Mail logo Nylas Mail

The Nylas Cloud API powers your application with email, calendar & contacts features. Built-in features for better email, calendar, and contact management.

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
  • Nylas Mail Landing page
    Landing page //
    2023-09-16
  • 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.

Nylas Mail

Website
nylas.com
$ Details
-
Platforms
-
Release Date
2013 January
Startup details
Country
United States
State
California
Founder(s)
Christine Spang
Employees
100 - 249

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

Nylas Mail features and specs

  • Unified Inbox
    Nylas Mail allows users to manage multiple email accounts from different providers within a single interface, which improves efficiency and ease of use.
  • Customizability
    The platform offers extensive customization options, including third-party plugins and themes, enabling users to tailor their email experience to their specific needs.
  • Built-in Analytics
    Nylas Mail provides analytical tools that offer insights into email activity and performance, helping users optimize their email strategies.
  • Developer-Friendly
    The service features a comprehensive API and is open-source, making it an excellent tool for developers who want to build custom email experiences or integrate with other applications.
  • Cross-Platform Support
    Nylas Mail is compatible with various operating systems, including Windows, macOS, and Linux, making it accessible to a wide range of users.

Possible disadvantages of Nylas Mail

  • Cost
    The advanced features of Nylas Mail often come at a higher price point compared to other free or cheaper email clients, which could be a barrier for individual users or small businesses.
  • Resource Intensive
    Some users have reported that Nylas Mail can be resource-intensive, leading to slower performance on older or less powerful hardware.
  • Limited Offline Access
    While Nylas Mail does offer some offline functionality, it is not as robust as some competitors, which can be a drawback for users who need extensive offline access to their emails.
  • Learning Curve
    The extensive range of features and customization options can make Nylas Mail a bit overwhelming for new users, leading to a steeper learning curve.
  • Inconsistent Updates
    Users have occasionally noted that updates and new feature rollouts are inconsistent, which can lead to stability and reliability concerns.

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 Nylas Mail

Overall verdict

  • Nylas Mail had a solid reputation for being a capable email client that offered advanced features appreciated by power users. However, it's important to note that Nylas Mail was discontinued and is no longer available. Users interested in similar features might consider alternative email clients like Mailbird, Spark, or Superhuman.

Why this product is good

  • Nylas Mail was known for its modern interface, powerful search capabilities, and support for multiple email services through a unified platform. It also offered features like tracking, scheduling, and syncing across devices, which were highly valued by users who needed robust email management tools.

Recommended for

    Nylas Mail was particularly well-suited for users who manage multiple email accounts and need enhanced functionality beyond basic email management, such as advanced search, email scheduling, and analytics. Since it's no longer available, users with similar needs should look for other modern email clients that offer these capabilities.

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

Nylas Mail videos

Gmail with Nylas Mail

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 Nylas Mail and ForthWrite)
Email Management
100 100%
0% 0
Email
85 85%
15% 15
Email Automation
100 100%
0% 0
Email Productivity
92 92%
8% 8

Questions & Answers

As answered by people managing Nylas Mail 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 Nylas Mail and ForthWrite

Nylas Mail Reviews

We have no reviews of Nylas Mail 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, Nylas Mail seems to be more popular. It has been mentiond 1 time 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.

Nylas Mail mentions (1)

  • Ask HN: Who is hiring? (February 2025)
    Nylas | https://nylas.com | Senior Software Engineer | Remote in Canada (US based company) At Nylas, we specialize in making it easier for developers to add email, calendar, and contact management features into their applications. We provide tools called APIs, which streamline the integration of these functionalities, ensuring they are secure and effective. This enables better, safer, and more reliable... - Source: Hacker News / over 1 year ago

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 Nylas Mail and ForthWrite, you can also consider the following products

Hiver - The modern AI customer service platform

ReclaimAI - Helps users prioritize their work and personal calendars

Clean Email - Clean Email is an online service that empowers you to take control of your mailbox.

Superhuman - Superhuman is an email management tool.

MailClark - The Slack bot for external communications

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