Software Alternatives, Accelerators & Startups

Shutter VS ForthWrite

Compare Shutter 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.

Shutter logo Shutter

Shutter is a feature-rich screenshot program.

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
  • Shutter Landing page
    Landing page //
    2023-05-04
  • 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.

Shutter

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

Shutter features and specs

  • Comprehensive Screenshot Options
    Shutter provides a wide variety of screenshot options including full screen, window, selection, and even web page capturing, making it versatile for different user needs.
  • Built-in Editor
    The built-in editor allows users to add annotations, shapes, and text to screenshots directly within Shutter, reducing the need for additional software.
  • User-Friendly Interface
    Shutter features an intuitive and user-friendly interface that makes it easy for users to navigate and utilize its functions efficiently.
  • Plugin Support
    Shutter supports various plugins to extend its functionality, such as uploading screenshots to image hosting sites or integrating with other software.
  • Cross-Platform Support
    Shutter is available for multiple Linux distributions, making it accessible for a large number of Linux users.

Possible disadvantages of Shutter

  • Limited to Linux
    Shutter is only available for Linux platforms, which excludes users on Windows and macOS from using the software.
  • Outdated Dependencies
    Some users have reported issues with outdated dependencies, which can cause compatibility problems with newer Linux distributions.
  • Development Stagnation
    The development of Shutter has slowed down in recent years, leading to fewer updates and potentially lacking some modern features that users might expect.
  • Installation Complexity
    Installing Shutter on certain Linux distributions can be complex and may require the user to manually resolve dependencies or add third-party repositories.
  • Heavy Resource Usage
    Shutter can be resource-intensive compared to other lightweight screenshot tools, which might affect performance on older or less powerful systems.

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 Shutter

Overall verdict

  • Good

Why this product is good

  • Shutter is a feature-rich screenshot tool that provides a variety of options for capturing images, such as full screen, specific windows, or custom selections. It also includes an integrated editor for annotating screenshots, which can be handy for creating instructional content. Its user-friendly interface and ability to handle file uploads make it a practical choice for many users.

Recommended for

    Shutter is recommended for users who need a versatile screenshot tool with editing capabilities, especially those creating tutorials, guides, or any visual content that requires annotations. It's also suitable for those who prefer an open-source solution available on Linux platforms.

Shutter videos

Shutter - Modern Horror Season Review | GizmoCh

More videos:

  • Review - Yoyofactory Shutter Review
  • Review - Shutter (2008) Movie Review

ForthWrite videos

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

Add video

Category Popularity

0-100% (relative to Shutter and ForthWrite)
Screenshot Annotation
100 100%
0% 0
Writing Tools
0 0%
100% 100
Screenshots
100 100%
0% 0
Email
0 0%
100% 100

Questions & Answers

As answered by people managing Shutter 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 Shutter 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 Shutter and ForthWrite

Shutter Reviews

Top 13 Free Snagit Alternatives For 2021
Hey, Ubuntu /Linux users! Have we got an app for you! Shutter swings in to attempt to help you capture your computer screen. If youโ€™re looking for a simple Linux screenshot tool , this could be it.
Source: screenrec.com

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, Shutter seems to be more popular. It has been mentiond 7 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.

Shutter mentions (7)

  • What is the name of the default screenshot tool in PopOS?
    Hey I use "shutter" https://shutter-project.org/ which has a nice blur option. Source: over 3 years ago
  • ShareX alternative for Linux?
    I also used Flameshot and Shutter. Shutter was very feature rich, and I think it's the closest in terms of having the same workflow actions as ShareX -- I don't think it fully supports Wayland yet though and has a TON of dependencies. Flameshot has had issues with Wayland and IMHO as of now most of its features has been implemented in native screencaptures (and if you need the tray icon, I think on Gnome there's... Source: over 3 years ago
  • A app to take long/scrolling screenshots?
    Maybe look into Shutter but it can only screenshot scrolling webpages no any other windows. Source: over 3 years ago
  • Alternative to shotwell for handling screenshots but with the possibility to draw onto the image?
    Shutter (https://shutter-project.org) is a very good tool for creating and editing screenshots. Source: over 3 years ago
  • I'm looking for a pc app that allows you to capture your screen.
    At home on my own PC, I use something called "Shutter" https://shutter-project.org/. Source: over 4 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 Shutter and ForthWrite, you can also consider the following products

Greenshot - Greenshot is a free and open source screenshot tool that allows annotation and highlighting using the built-in image editor.

Superhuman - Superhuman is an email management tool.

Snipping Tool - Use Snipping Tool to capture a screen shot, or snip, of any object on your screen, and then annotate, save, or share the image

Gemini - Gemini, formerly known as Bard, is a generative artificial intelligence chatbot developed by Google. Based on the large language model (LLM) of the same name, it was launched in 2023 in response to the rise of OpenAI's ChatGPT.

MWSnap - MWSnap is basically a free to use Windows snapping tools that are used for snapping any part of the screen that is currently displaying on the front of all opened programs and windows.

Lavender - Realtime coaching for sales emails.