Software Alternatives, Accelerators & Startups

ChangeTower VS ForthWrite

Compare ChangeTower VS ForthWrite and see what are their differences

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ChangeTower logo ChangeTower

ChangeTower offers website monitoring toolsย for new content and content changes.

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
  • ChangeTower Landing page
    Landing page //
    2022-09-20
  • 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.

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

ChangeTower features and specs

  • Real-time Monitoring
    ChangeTower offers real-time monitoring of web pages, allowing users to track changes as they happen, which is crucial for staying updated with important modifications.
  • Custom Alerts
    Users can set up custom alerts to be notified of specific changes, providing a tailored monitoring experience that meets individual needs.
  • Comprehensive Reporting
    The platform provides detailed reports and logs of changes, aiding in analysis and record-keeping.
  • User-Friendly Interface
    ChangeTower's interface is intuitive and easy to navigate, making it accessible to users with varying levels of technical expertise.
  • Multi-Source Monitoring
    Capable of monitoring a variety of sources including web pages, HTML elements, and even keywords, offering versatile monitoring capabilities.

Possible disadvantages of ChangeTower

  • Pricing
    The cost of using ChangeTower can be relatively high, especially for small businesses or individual users.
  • Limited Free Plan
    The free plan has limitations on the number of pages and frequency of monitoring, which might not be sufficient for heavy users.
  • Learning Curve
    While the interface is user-friendly, there is a learning curve to fully utilize all the advanced features and customization options.
  • Dependence on Web Page Structure
    Changes in the structure of monitored web pages can impact the monitoring process, requiring adjustments and reconfiguration.
  • Alert Overload
    Users may experience alert fatigue if not carefully setting up filters and criteria, potentially leading to the overlooking of important changes.

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 ChangeTower

Overall verdict

  • ChangeTower is a good tool if you are looking for a reliable and customizable way to track changes on websites. Its robust feature set and flexible alert system cater to a wide range of monitoring needs.

Why this product is good

  • ChangeTower is recognized for its ability to monitor website changes effectively. It offers a variety of monitoring options, including content changes, keyword tracking, and visual changes, which can be highly beneficial for businesses needing to keep track of their competitors, receive alerts on web compliance, or monitor their own content for updates. The platform's user-friendly interface and custom alert settings make it accessible for users of varying technical expertise.

Recommended for

    ChangeTower is recommended for businesses and professionals who need to monitor competitor websites, track changes in legislation or compliance on relevant websites, or manage brand consistency by keeping tabs on multiple pages across the web. It's also suitable for researchers and analysts who require up-to-date information from specific websites.

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

Category Popularity

0-100% (relative to ChangeTower and ForthWrite)
Monitoring Tools
100 100%
0% 0
Email
0 0%
100% 100
Website Monitoring
100 100%
0% 0
Email Productivity
0 0%
100% 100

Questions & Answers

As answered by people managing ChangeTower 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 ChangeTower and ForthWrite

ChangeTower Reviews

We have no reviews of ChangeTower 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, ChangeTower seems to be more popular. It has been mentiond 3 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.

ChangeTower mentions (3)

  • Is there any sort of centralized service that can ping you with an eMail or an SMS whenever your OSS of choice punts a new release?
    I've used this, but currently I'm using https://changetower.com/ for this purpose. Source: over 3 years ago
  • Picked up my 2023 Tucson Ultra Hybrid today
    Never had Husky's so I cannot compare. However, the front and rear Tuxmats fit perfectly my Tucson but they were hard to buy - always out of stock. Still have a changetower on the trunk mat for when they become available. Source: over 3 years ago
  • RAF Photographer applicants
    If the role you are intersted in is currently closed you can set up a backup notification method to spot if it opens by using a website monitoring site like https://uptimerobot.com/keyword-monitoring/, https://changetower.com/ or https://visualping.io/ (others are available, some will monitor more often than others on the free plans - do your own research) to monitor the role page for changes - e.g. For certain... Source: almost 4 years 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 ChangeTower and ForthWrite, you can also consider the following products

Visualping - Visualping is the easiest to use website checker, webpage change monitoring, website change detector and website change alert software of the web. Read more about Visualping.

ReclaimAI - Helps users prioritize their work and personal calendars

Wachete - Track web page changes and get notified. Free Sign-up. Have all data in one place

Superhuman - Superhuman is an email management tool.

Distill.io - Distill.io is one of the advanced page monitoring tools used by professionals to monitor dynamic pages, feeds, and iframes.

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