Software Alternatives, Accelerators & Startups

Tenable.io VS ForthWrite

Compare Tenable.io VS ForthWrite and see what are their differences

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Tenable.io logo Tenable.io

Tenable.io Cyber Exposure platform helps to protect any asset on any computing platform and eliminate blind spots.

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
  • Tenable.io Landing page
    Landing page //
    2023-10-06
  • 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.

Tenable.io

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

Tenable.io features and specs

  • Comprehensive Vulnerability Coverage
    Tenable.io provides extensive coverage of vulnerabilities across a wide range of IT assets, including on-premise, cloud, and container environments, ensuring thorough security assessments.
  • User-Friendly Interface
    The platform features an intuitive and easy-to-use interface, allowing both experienced and novice users to navigate and operate the tool effectively.
  • Advanced Reporting and Analytics
    Tenable.io offers robust reporting and analytics capabilities, enabling users to generate detailed reports and gain insights into their security posture.
  • Scalability
    Designed for scalability, Tenable.io can efficiently handle the needs of both small businesses and large enterprises, adjusting to changing requirements.
  • API Integrations
    The platform includes extensive API support for integrating with other security tools and existing workflows, enhancing overall security infrastructure compatibility and efficiency.

Possible disadvantages of Tenable.io

  • Pricing
    Tenable.io can be expensive compared to some other vulnerability management solutions, which might be a barrier for smaller organizations with limited budgets.
  • Complexity in Deployment
    Initial setup and deployment can be complex, especially for organizations without a dedicated IT security team, potentially requiring professional services for effective implementation.
  • False Positives
    Some users have reported the occurrence of false positives, which can lead to unnecessary remediation efforts and the allocation of resources to non-critical issues.
  • Learning Curve
    Despite its user-friendly interface, there can be a significant learning curve initially, particularly with advanced features and integrations requiring deeper understanding.
  • Resource Intensive
    Running comprehensive scans and analyses can be resource-intensive, potentially impacting system performance, especially on older or less powerful hardware.

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 Tenable.io

Overall verdict

  • Tenable.io is generally regarded as a good choice for organizations seeking cloud-based vulnerability management solutions, thanks to its accuracy, ease of use, and extensive reporting features. It is particularly valued by users looking for scalable solutions that can provide continuous monitoring and quick response capabilities.

Why this product is good

  • Tenable.io is often considered a strong solution in the field of vulnerability management due to its comprehensive detection capabilities, continuous visibility, and its ability to assess vulnerabilities across a wide range of IT assets. It provides real-time insights into vulnerabilities, misconfigurations, and other security issues, which helps organizations maintain robust security postures. The platform's integration capabilities with various IT and security tools also enhance its usability in diverse IT environments.

Recommended for

    Tenable.io is recommended for medium to large enterprises that require comprehensive vulnerability management across cloud, on-premises, and hybrid environments. It's also well-suited for businesses in highly regulated industries that need to adhere to strict compliance requirements. Security teams looking for a solution with strong integration capabilities and real-time threat intelligence would benefit from Tenable.io.

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

Tenable.io videos

Introducing Tenable.io

More videos:

  • Review - Introducing Tenable.io Web Application Scanning
  • Review - Tenable Lumin Vulnerabilities Overview in Tenable.io

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 Tenable.io and ForthWrite)
Security
100 100%
0% 0
Email
0 0%
100% 100
Monitoring Tools
100 100%
0% 0
Email Productivity
0 0%
100% 100

Questions & Answers

As answered by people managing Tenable.io 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 Tenable.io and ForthWrite

Tenable.io Reviews

We have no reviews of Tenable.io 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)

What are some alternatives?

When comparing Tenable.io and ForthWrite, you can also consider the following products

Qualys - Qualys helps your business automate the full spectrum of auditing, compliance and protection of your IT systems and web applications.

ReclaimAI - Helps users prioritize their work and personal calendars

Nessus - Nessus Professional is a security platform designed for businesses who want to protect the security of themselves, their clients, and their customers.

Superhuman - Superhuman is an email management tool.

AlienVault USM (from AT&T Cybersecurity) - AlienVault USM Anywhere delivers powerful threat detection, incident response, and compliance management for cloud, on-premises, and hybrid environments.

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