Software Alternatives, Accelerators & Startups

stretchly VS ForthWrite

Compare stretchly VS ForthWrite and see what are their differences

stretchly logo stretchly

break time reminder app

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
  • stretchly Landing page
    Landing page //
    2022-11-07
  • 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.

stretchly

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

stretchly features and specs

  • Open Source
    Stretchly is open source, meaning the code is freely available for anyone to inspect, modify, and enhance. This ensures transparency and allows for community contributions which can lead to continuous improvements and rapid bug fixes.
  • Cross-Platform
    The application supports multiple operating systems, including Windows, macOS, and Linux. This makes it accessible to a wide range of users regardless of their computing environment.
  • Highly Customizable
    Users can customize the break intervals, notification messages, and settings to match their personal preferences and work schedules, allowing for a highly tailored user experience.
  • Simple Interface
    Stretchly features a clean and user-friendly interface, making it easy to set up and use even for individuals who are not tech-savvy.
  • Regular Reminders
    It provides regular break reminders to help reduce eye strain, improve posture, and increase productivity by encouraging users to take short breaks from their screen.

Possible disadvantages of stretchly

  • Intrusive Alerts
    While the reminders are beneficial, they can sometimes be seen as intrusive, breaking the user's concentration and workflow, especially during critical tasks.
  • Limited Integration
    Stretchly does not integrate with other productivity tools or calendar applications, which could help synchronize work schedules and breaks more efficiently.
  • Basic Features
    Compared to other professional productivity tools, Stretchly's features might seem basic and lack advanced functionalities such as detailed analytics on screen time and break patterns.
  • Self-Discipline Required
    The effectiveness of the app heavily relies on the user's self-discipline to adhere to the break reminders. Without this discipline, the app might not bring about the desired productivity improvements.
  • Potential for Over-customization
    While customization can be a strength, it can also be a drawback if users spend too much time tweaking settings instead of focusing on their work, potentially leading to reduced productivity.

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 stretchly

Overall verdict

  • Stretchly is a good tool for individuals who need frequent reminders to take breaks while working on a computer. Its user-friendly interface and flexibility make it a popular choice among productivity enthusiasts and wellness advocates.

Why this product is good

  • Stretchly is an open-source app designed to remind users to take regular breaks, promoting better productivity and health. It is lightweight, customizable, and offers a range of break schedules and notification options. The app helps prevent burnout and strain by encouraging users to step away from their screens, thus enhancing overall well-being.

Recommended for

  • Office workers who spend long hours at a desk
  • Freelancers who need to self-manage their breaks
  • Individuals trying to improve their work-life balance
  • Anyone looking to reduce eye strain and physical fatigue from prolonged computer use

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

stretchly videos

Keep Moving with Stretchly

More videos:

  • Review - Stretchly, the Tech Doctor (Bengali)

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 stretchly and ForthWrite)
Time Tracking
100 100%
0% 0
Writing Tools
0 0%
100% 100
Health And Fitness
100 100%
0% 0
Email
0 0%
100% 100

Questions & Answers

As answered by people managing stretchly 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 stretchly and ForthWrite

stretchly Reviews

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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, stretchly seems to be more popular. It has been mentiond 21 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.

stretchly mentions (21)

  • Show HN: LookAway โ€“ My first native macOS app to combat digital eye strain
    Nice job, I think below software are good for windows user too. https://hovancik.net/stretchly/. - Source: Hacker News / over 2 years ago
  • LPT request: how to protect your eyesight if you have to use a screen for 12-14 hours a day?
    A similar piece of software (which I use and can recommend) is Stretchly. Source: about 3 years ago
  • Buy a good monitor if you care about your eyes!
    Stretchly is a free open-source cross-platform app that automatically forces you to take breaks, get a glass of water, stand up, look into the distance, move your head, etc. I use it every day and itโ€™s awesome. Source: over 3 years ago
  • Game Developers: How Are You Staying Healthy While Sitting for Long Hours?
    Break time reminder apps like stretchly or workrave. Source: over 3 years ago
  • How to take care of your Health as a Developer
    Take breaks every 20-30 mins. You can use any app to remind you of breaks. I personally used Strechly when I was on Windows, it is a great app for this purpose. On Linux, I use Safe Eyes, same concept, just some UI changes, and more features. - Source: dev.to / over 3 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 stretchly and ForthWrite, you can also consider the following products

Workrave - Workrave is a program that assists in the recovery and prevention of Repetitive Strain Injury (RSI).

Superhuman - Superhuman is an email management tool.

Iris - The fastest web framework for Go in (THIS) earth

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.

Eye Break - eyeBreak is a tiny app designed to sit in the Windows tray and provide a non-ignorable message...

Lavender - Realtime coaching for sales emails.